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iwlwifi crash with 3.13

DISCUSSION Petko Manolov 4 participants 17 messages Jan 23, 2014 – Feb 9, 2014 Networking drivers (wireless)

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Petko Manolov

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#0 lore raw

Hi guys,

Connecting to 5GHz router with my iwlwifi (on Yoga 2 Pro, 3.13 kernel) seems to work fine, but 'dmesg' doesn't look pretty. This is what 'lspci' say about the actual controller: Intel Corporation Wireless 7260 (rev 6b).

IIRC this was going on with 3.11.y and 3.12.y as well. Please let me know if i can help with anything else.

cheers,
Petko

--- part_of_dmesg ---

iwlwifi 0000:01:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP iwlwifi 0000:01:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP

wlan0: associate with 00:25:9c:24:d5:4c (try 1/3)
wlan0: RX AssocResp from 00:25:9c:24:d5:4c (capab=0x411 status=0 aid=1)
wlan0: associated
wlan0: deauthenticating from 00:25:9c:24:d5:4c by local choice (reason=3)
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
wlan0: authenticate with 00:25:9c:24:d5:4d
wlan0: send auth to 00:25:9c:24:d5:4d (try 1/3)
wlan0: authenticated
wlan0: associate with 00:25:9c:24:d5:4d (try 1/3)
wlan0: RX AssocResp from 00:25:9c:24:d5:4d (capab=0x11 status=0 aid=1) iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255254
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X25538700
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X025576d0
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000038
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD PHY_CONTEXT_CMD

CPU: 3 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #2
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_iface_work
 ffff880254037218 ffffffff814e7ea2 ffff880254034000 ffffffffa000c755
 ffff8802560ef7b0 00000008560ef868 0000000000000000 ffff8802560ca0d0
 ffffffff81074510 ffff8802560ef758 ffff8802560ef758 ffff8802560ef7b0
Call Trace:
 [<ffffffff814e7ea2>] ? dump_stack+0x41/0x51
 [<ffffffffa000c755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff81074510>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa00345d8>] ? iwl_mvm_send_cmd+0x18/0x60 [iwlmvm]
 [<ffffffffa003465c>] ? iwl_mvm_send_cmd_pdu+0x3c/0x50 [iwlmvm]
 [<ffffffffa0032d11>] ? iwl_mvm_phy_ctxt_apply.constprop.5+0x111/0x230 [iwlmvm]
 [<ffffffffa002fc5b>] ? iwl_mvm_change_chanctx+0x6b/0xb0 [iwlmvm]
 [<ffffffff814d3916>] ? ieee80211_recalc_smps+0x36/0x70
 [<ffffffff814e9d97>] ? ieee80211_assoc_success+0x694/0x9b6
 [<ffffffff8107745f>] ? msg_print_text+0xdf/0x1d0
 [<ffffffff810752cd>] ? up+0xd/0x40
 [<ffffffff81078247>] ? console_unlock+0x267/0x3d0
 [<ffffffff814d9941>] ? ieee80211_rx_mgmt_assoc_resp+0x111/0x210
 [<ffffffff814d9eb4>] ? ieee80211_sta_rx_queued_mgmt+0x154/0x540
 [<ffffffff81070e25>] ? load_balance+0x155/0x850
 [<ffffffff814bda1b>] ? ieee80211_iface_work+0x24b/0x350
 [<ffffffff810591fc>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d66>] ? worker_thread+0x116/0x3a0
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014FE | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x00A00220 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1

[<ffffffff81059c50>] ? manage_workers.isra.30+0x280/0x280
iwlwifi 0000:01:00.0: 0x00000C8A | branchlink2
[<ffffffff8105f061>] ? kthread+0xc1/0xe0 [<ffffffff8105efa0>] ? kthread_create_on_node+0x180/0x180 [<ffffffff814ee53c>] ? ret_from_fork+0x7c/0xb0
iwlwifi 0000:01:00.0: 0x00014078 | interruptlink1
[<ffffffff8105efa0>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: PHY ctxt cmd error. ret=-5

iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000000 | data1
iwlwifi 0000:01:00.0: 0x00000005 | data2
iwlwifi 0000:01:00.0: 0xDEADBEEF | data3
iwlwifi 0000:01:00.0: 0x00002A4A | beacon time
iwlwifi 0000:01:00.0: 0x01C7F4F1 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x0037F4BA | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x00321600 | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x09280008 | hcmd
iwlwifi 0000:01:00.0: 0x24022080 | isr0
iwlwifi 0000:01:00.0: 0x01000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00027C32 | wait_event
iwlwifi 0000:01:00.0: 0x00000010 | l2p_control
iwlwifi 0000:01:00.0: 0x00018030 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x000000CF | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x17061625 | timestamp
iwlwifi 0000:01:00.0: 0x00003840 | flow_handler

ieee80211 phy0: Hardware restart was requested
wlan0: associated
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255254
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X25538700
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X025576d0
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000060
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD PHY_CONTEXT_CMD

CPU: 2 PID: 9384 Comm: kworker/u8:1 Not tainted 3.13.0 #2
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_recalc_smps_work
 ffff880254037218 ffffffff814e7ea2 ffff880254034000 ffffffffa000c755
 ffff880254151d50 0000001e00000001 ffff880200000000 ffff880256394ec0
 ffffffff81074510 ffff880254151cf8 ffff880254151cf8 ffff880254151d50
Call Trace:
 [<ffffffff814e7ea2>] ? dump_stack+0x41/0x51
 [<ffffffffa000c755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff81074510>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa00345d8>] ? iwl_mvm_send_cmd+0x18/0x60 [iwlmvm]
 [<ffffffffa003465c>] ? iwl_mvm_send_cmd_pdu+0x3c/0x50 [iwlmvm]
 [<ffffffff814ecb5a>] ? __mutex_lock_slowpath+0x13a/0x1b0
 [<ffffffffa0032d11>] ? iwl_mvm_phy_ctxt_apply.constprop.5+0x111/0x230 [iwlmvm]
 [<ffffffffa002fc5b>] ? iwl_mvm_change_chanctx+0x6b/0xb0 [iwlmvm]
 [<ffffffff814d3916>] ? ieee80211_recalc_smps+0x36/0x70
 [<ffffffff810591fc>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d66>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c50>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f061>] ? kthread+0xc1/0xe0
 [<ffffffff8105efa0>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee53c>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105efa0>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: PHY ctxt cmd error. ret=-5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014FE | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x00000220 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C8A | branchlink2
iwlwifi 0000:01:00.0: 0x00014078 | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000000 | data1
iwlwifi 0000:01:00.0: 0x00000005 | data2
iwlwifi 0000:01:00.0: 0xDEADBEEF | data3
iwlwifi 0000:01:00.0: 0x5041464A | beacon time
iwlwifi 0000:01:00.0: 0x4E8A8A49 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x4CF50993 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x00321600 | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x097E0008 | hcmd
iwlwifi 0000:01:00.0: 0x24022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x00405CC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00014D9A | wait_event
iwlwifi 0000:01:00.0: 0x000000D4 | l2p_control
iwlwifi 0000:01:00.0: 0x00018030 | l2p_duration
iwlwifi 0000:01:00.0: 0x00000007 | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000081 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x17061625 | timestamp
iwlwifi 0000:01:00.0: 0x00006068 | flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S

#1 lore raw
Quoted 11 lines

Hi guys,

Connecting to 5GHz router with my iwlwifi (on Yoga 2 Pro, 3.13 kernel) seems to work fine, but 'dmesg' doesn't look pretty. This is what 'lspci' say about the actual controller: Intel Corporation Wireless 7260 (rev 6b).

IIRC this was going on with 3.11.y and 3.12.y as well. Please let me know if i can help with anything else.

Can you share the very first iwlwifi lines of your dmesg?
I'd like to check the fw version.
Also - can you please update to latest firmware from http://wireless.kernel.org/en/users/Drivers/iwlwifi.
You can take iwlwifi-7260-ucode-22.1.7.0.tgz or iwlwifi-7260-ucode-22.15.8.0.tgz.

author
#2 lore raw
Quoted 3 lines · Emmanuel

Can you share the very first iwlwifi lines of your dmesg? I'd like to check the fw version. Also - can you please update to latest firmware from http://wireless.kernel.org/en/users/Drivers/iwlwifi. You can take iwlwifi-7260-ucode-22.1.7.0.tgz or iwlwifi-7260-ucode-22.15.8.0.tgz.

I used the latter firmware version with pretty much the same result. Attached you'll find complete (iwlwifi-related) dmesg. BTW, after these dumps the controller successfully connected to 2.4GHz network.

--- dmesg ---

Intel(R) Wireless WiFi driver for Linux, in-tree:
Copyright(c) 2003-2013 Intel Corporation
iwlwifi 0000:01:00.0: irq 62 for MSI/MSI-X
iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
--- snip ---
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x000002A0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x003523E9 | beacon time
iwlwifi 0000:01:00.0: 0x000B9A37 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x000B9A37 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00018000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x00352263 | beacon time
iwlwifi 0000:01:00.0: 0x005732DD | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x005732DE | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x0035223E | beacon time
iwlwifi 0000:01:00.0: 0x0057260D | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x0057260D | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000030
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x0035227F | beacon time
iwlwifi 0000:01:00.0: 0x005733C4 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x005733C4 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x01000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00003038 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV: 0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT          
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x003522B5 | beacon time
iwlwifi 0000:01:00.0: 0x00572B49 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x00572B49 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S

#3 lore raw
Quoted 11 lines · Emmanuel
Quoted 2 lines

Can you share the very first iwlwifi lines of your dmesg? I'd like to check the

fw version. Also - can you please update to latest firmware

Quoted 1 line

from http://wireless.kernel.org/en/users/Drivers/iwlwifi. You can take

iwlwifi-7260-ucode-22.1.7.0.tgz or iwlwifi-7260-ucode-22.15.8.0.tgz.

I used the latter firmware version with pretty much the same result. Attached you'll find complete (iwlwifi-related) dmesg. BTW, after these dumps the controller successfully connected to 2.4GHz network.

Ok - thanks.
Can I see the output of

cat /sys/kernel/debug/iwlwifi/*/iwlmvm/nvm_sw | hexdump | head -5

thanks.

Quoted 513 lines

--- dmesg ---

Intel(R) Wireless WiFi driver for Linux, in-tree:
Copyright(c) 2003-2013 Intel Corporation
iwlwifi 0000:01:00.0: irq 62 for MSI/MSI-X
iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' --- snip ---
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT
iwlwifi 0000:01:00.0: 0x000002A0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x003523E9 | beacon time
iwlwifi 0000:01:00.0: 0x000B9A37 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x000B9A37 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00018000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x00352263 | beacon time
iwlwifi 0000:01:00.0: 0x005732DD | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x005732DE | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x0035223E | beacon time
iwlwifi 0000:01:00.0: 0x0057260D | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x0057260D | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000030
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x0035227F | beacon time
iwlwifi 0000:01:00.0: 0x005733C4 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x005733C4 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x01000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00003038 | flow_handler

ieee80211 phy0: Hardware restart was requested
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000. iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG: 0X80801114
iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3
Hardware name: LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51
 [<ffffffffa0008755>] ? iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]
 [<ffffffff810744f0>] ? prepare_to_wait_event+0xf0/0xf0
 [<ffffffffa0034633>] ? iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]
 [<ffffffffa00396f5>] ? iwl_mvm_scan_request+0x355/0x430 [iwlmvm]
 [<ffffffffa003074e>] ? iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]
 [<ffffffff814b503f>] ? __ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
 [<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
 [<ffffffff81059d56>] ? worker_thread+0x116/0x3a0
 [<ffffffff81059c40>] ? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0
 [<ffffffff8105ef80>] ? kthread_create_on_node+0x180/0x180
iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5
iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6
iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT
iwlwifi 0000:01:00.0: 0x000002B0 | uPc
iwlwifi 0000:01:00.0: 0x00000000 | branchlink1
iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2
iwlwifi 0000:01:00.0: 0x00015ADC | interruptlink1
iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2
iwlwifi 0000:01:00.0: 0x00000175 | data1
iwlwifi 0000:01:00.0: 0x00000024 | data2
iwlwifi 0000:01:00.0: 0x000000E0 | data3
iwlwifi 0000:01:00.0: 0x003522B5 | beacon time
iwlwifi 0000:01:00.0: 0x00572B49 | tsf low
iwlwifi 0000:01:00.0: 0x00000000 | tsf hi
iwlwifi 0000:01:00.0: 0x00000000 | time gp1
iwlwifi 0000:01:00.0: 0x00572B49 | time gp2
iwlwifi 0000:01:00.0: 0x00000000 | time gp3
iwlwifi 0000:01:00.0: 0x0004160F | uCode version
iwlwifi 0000:01:00.0: 0x00000144 | hw version
iwlwifi 0000:01:00.0: 0x00489204 | board version
iwlwifi 0000:01:00.0: 0x091F0080 | hcmd
iwlwifi 0000:01:00.0: 0x00022080 | isr0
iwlwifi 0000:01:00.0: 0x00000000 | isr1
iwlwifi 0000:01:00.0: 0x00000002 | isr2
iwlwifi 0000:01:00.0: 0x0041FCC0 | isr3
iwlwifi 0000:01:00.0: 0x00000001 | isr4
iwlwifi 0000:01:00.0: 0x01000112 | isr_pref
iwlwifi 0000:01:00.0: 0x00000000 | wait_event
iwlwifi 0000:01:00.0: 0x00000080 | l2p_control
iwlwifi 0000:01:00.0: 0x00010000 | l2p_duration
iwlwifi 0000:01:00.0: 0x0000003F | l2p_mhvalid
iwlwifi 0000:01:00.0: 0x00000000 | l2p_addr_match
iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel
iwlwifi 0000:01:00.0: 0x22121614 | timestamp
iwlwifi 0000:01:00.0: 0x00002838 | flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S

#4 lore raw
In reply to Petko Manolov
Quoted 13 lines
Quoted 12 lines
Quoted 3 lines

Can you share the very first iwlwifi lines of your dmesg? I'd like to check the

fw version. Also - can you please update to latest firmware

Quoted 2 lines

from http://wireless.kernel.org/en/users/Drivers/iwlwifi. You can take

iwlwifi-7260-ucode-22.1.7.0.tgz or iwlwifi-7260-ucode-22.15.8.0.tgz.

I used the latter firmware version with pretty much the same result. Attached you'll find complete (iwlwifi-related) dmesg. BTW, after these dumps the controller successfully connected to 2.4GHz network.

Quoted 5 lines

Ok - thanks.
Can I see the output of

cat /sys/kernel/debug/iwlwifi/*/iwlmvm/nvm_sw | hexdump | head -5

If it easier - you can also reload the module and add debug=0x1:

modprobe iwlwifi debug=0x1.

Note that you first need to unload iwlmvm, then, unload iwlwifi. After that you can reload iwlwifi. I prefer the debufgs line above though, I'll get a bit more information.

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thanks.

Quoted 33 lines

--- dmesg ---

Intel(R) Wireless WiFi driver for Linux, in-tree:
Copyright(c) 2003-2013 Intel Corporation iwlwifi 0000:01:00.0: irq 62 for MSI/MSI-X iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S
ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' --- snip ---
iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Quoted 11 lines

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG:

0X80801114

Quoted 79 lines

iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3 Hardware name:
LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51  [<ffffffffa0008755>] ?
iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]  [<ffffffff810744f0>] ?
prepare_to_wait_event+0xf0/0xf0  [<ffffffffa0034633>] ?
iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]  [<ffffffffa00396f5>] ?
iwl_mvm_scan_request+0x355/0x430 [iwlmvm]  [<ffffffffa003074e>] ?
iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]  [<ffffffff814b503f>] ?
__ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
[<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
[<ffffffff81059d56>] ? worker_thread+0x116/0x3a0  [<ffffffff81059c40>]
? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0  [<ffffffff8105ef80>] ?
kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0  [<ffffffff8105ef80>]
? kthread_create_on_node+0x180/0x180

iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5 iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT iwlwifi 0000:01:00.0:
0x000002A0 | uPc iwlwifi 0000:01:00.0: 0x00000000 | branchlink1 iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2 iwlwifi 0000:01:00.0:
0x00015ADC | interruptlink1 iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2 iwlwifi 0000:01:00.0: 0x00000175 | data1 iwlwifi 0000:01:00.0: 0x00000024 | data2 iwlwifi 0000:01:00.0: 0x000000E0 | data3 iwlwifi 0000:01:00.0: 0x003523E9 | beacon time iwlwifi 0000:01:00.0: 0x000B9A37 | tsf low iwlwifi 0000:01:00.0: 0x00000000 | tsf hi iwlwifi 0000:01:00.0: 0x00000000 | time gp1 iwlwifi 0000:01:00.0: 0x000B9A37 | time gp2 iwlwifi 0000:01:00.0: 0x00000000 | time gp3 iwlwifi 0000:01:00.0: 0x0004160F | uCode version iwlwifi 0000:01:00.0: 0x00000144 | hw version iwlwifi 0000:01:00.0: 0x00489204

| board version iwlwifi 0000:01:00.0: 0x091F0080 | hcmd iwlwifi
0000:01:00.0: 0x00022080 | isr0 iwlwifi 0000:01:00.0: 0x00000000 |
isr1 iwlwifi 0000:01:00.0: 0x00000002 | isr2 iwlwifi 0000:01:00.0:
0x0041FCC0 | isr3 iwlwifi 0000:01:00.0: 0x00000001 | isr4 iwlwifi
0000:01:00.0: 0x01000112 | isr_pref iwlwifi 0000:01:00.0: 0x00000000 |
wait_event iwlwifi 0000:01:00.0: 0x00000080 | l2p_control iwlwifi
0000:01:00.0: 0x00018000 | l2p_duration iwlwifi 0000:01:00.0:
0x0000003F | l2p_mhvalid iwlwifi 0000:01:00.0: 0x00000000 |
l2p_addr_match iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi
0000:01:00.0: 0x22121614 | timestamp iwlwifi 0000:01:00.0: 0x00002838
| flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Quoted 11 lines

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG:

0X80801114

Quoted 79 lines

iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3 Hardware name:
LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51  [<ffffffffa0008755>] ?
iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]  [<ffffffff810744f0>] ?
prepare_to_wait_event+0xf0/0xf0  [<ffffffffa0034633>] ?
iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]  [<ffffffffa00396f5>] ?
iwl_mvm_scan_request+0x355/0x430 [iwlmvm]  [<ffffffffa003074e>] ?
iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]  [<ffffffff814b503f>] ?
__ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
[<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
[<ffffffff81059d56>] ? worker_thread+0x116/0x3a0  [<ffffffff81059c40>]
? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0  [<ffffffff8105ef80>] ?
kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0  [<ffffffff8105ef80>]
? kthread_create_on_node+0x180/0x180

iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5 iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT iwlwifi 0000:01:00.0:
0x000002B0 | uPc iwlwifi 0000:01:00.0: 0x00000000 | branchlink1 iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2 iwlwifi 0000:01:00.0:
0x00015ADC | interruptlink1 iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2 iwlwifi 0000:01:00.0: 0x00000175 | data1 iwlwifi 0000:01:00.0: 0x00000024 | data2 iwlwifi 0000:01:00.0: 0x000000E0 | data3 iwlwifi 0000:01:00.0: 0x00352263 | beacon time iwlwifi 0000:01:00.0: 0x005732DD | tsf low iwlwifi 0000:01:00.0: 0x00000000 | tsf hi iwlwifi 0000:01:00.0: 0x00000000 | time gp1 iwlwifi 0000:01:00.0: 0x005732DE | time gp2 iwlwifi 0000:01:00.0: 0x00000000 | time gp3 iwlwifi 0000:01:00.0: 0x0004160F | uCode version iwlwifi 0000:01:00.0: 0x00000144 | hw version iwlwifi 0000:01:00.0: 0x00489204

| board version iwlwifi 0000:01:00.0: 0x091F0080 | hcmd iwlwifi
0000:01:00.0: 0x00022080 | isr0 iwlwifi 0000:01:00.0: 0x00000000 |
isr1 iwlwifi 0000:01:00.0: 0x00000002 | isr2 iwlwifi 0000:01:00.0:
0x0041FCC0 | isr3 iwlwifi 0000:01:00.0: 0x00000001 | isr4 iwlwifi
0000:01:00.0: 0x01000112 | isr_pref iwlwifi 0000:01:00.0: 0x00000000 |
wait_event iwlwifi 0000:01:00.0: 0x00000080 | l2p_control iwlwifi
0000:01:00.0: 0x00010000 | l2p_duration iwlwifi 0000:01:00.0:
0x0000003F | l2p_mhvalid iwlwifi 0000:01:00.0: 0x00000000 |
l2p_addr_match iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi
0000:01:00.0: 0x22121614 | timestamp iwlwifi 0000:01:00.0: 0x00002838
| flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Quoted 11 lines

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG:

0X80801114

Quoted 79 lines

iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3 Hardware name:
LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51  [<ffffffffa0008755>] ?
iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]  [<ffffffff810744f0>] ?
prepare_to_wait_event+0xf0/0xf0  [<ffffffffa0034633>] ?
iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]  [<ffffffffa00396f5>] ?
iwl_mvm_scan_request+0x355/0x430 [iwlmvm]  [<ffffffffa003074e>] ?
iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]  [<ffffffff814b503f>] ?
__ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
[<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
[<ffffffff81059d56>] ? worker_thread+0x116/0x3a0  [<ffffffff81059c40>]
? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0  [<ffffffff8105ef80>] ?
kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0  [<ffffffff8105ef80>]
? kthread_create_on_node+0x180/0x180

iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5 iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT iwlwifi 0000:01:00.0:
0x000002B0 | uPc iwlwifi 0000:01:00.0: 0x00000000 | branchlink1 iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2 iwlwifi 0000:01:00.0:
0x00015ADC | interruptlink1 iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2 iwlwifi 0000:01:00.0: 0x00000175 | data1 iwlwifi 0000:01:00.0: 0x00000024 | data2 iwlwifi 0000:01:00.0: 0x000000E0 | data3 iwlwifi 0000:01:00.0: 0x0035223E | beacon time iwlwifi 0000:01:00.0: 0x0057260D | tsf low iwlwifi 0000:01:00.0: 0x00000000 | tsf hi iwlwifi 0000:01:00.0: 0x00000000 | time gp1 iwlwifi 0000:01:00.0: 0x0057260D | time gp2 iwlwifi 0000:01:00.0: 0x00000000 | time gp3 iwlwifi 0000:01:00.0: 0x0004160F | uCode version iwlwifi 0000:01:00.0: 0x00000144 | hw version iwlwifi 0000:01:00.0: 0x00489204

| board version iwlwifi 0000:01:00.0: 0x091F0080 | hcmd iwlwifi
0000:01:00.0: 0x00022080 | isr0 iwlwifi 0000:01:00.0: 0x00000000 |
isr1 iwlwifi 0000:01:00.0: 0x00000002 | isr2 iwlwifi 0000:01:00.0:
0x0041FCC0 | isr3 iwlwifi 0000:01:00.0: 0x00000001 | isr4 iwlwifi
0000:01:00.0: 0x01000112 | isr_pref iwlwifi 0000:01:00.0: 0x00000000 |
wait_event iwlwifi 0000:01:00.0: 0x00000080 | l2p_control iwlwifi
0000:01:00.0: 0x00010000 | l2p_duration iwlwifi 0000:01:00.0:
0x0000003F | l2p_mhvalid iwlwifi 0000:01:00.0: 0x00000000 |
l2p_addr_match iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi
0000:01:00.0: 0x22121614 | timestamp iwlwifi 0000:01:00.0: 0x00002838
| flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Quoted 11 lines

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000030
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG:

0X80801114

Quoted 79 lines

iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 25 Comm: kworker/u8:1 Not tainted 3.13.0 #3 Hardware name:
LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802561e5d10 0000001f00000000 0000000000000000 ffff8802561413b0
 ffffffff810744f0 ffff8802561e5c78 ffff8802561e5c78 ffff8802561e5d10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51  [<ffffffffa0008755>] ?
iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]  [<ffffffff810744f0>] ?
prepare_to_wait_event+0xf0/0xf0  [<ffffffffa0034633>] ?
iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]  [<ffffffffa00396f5>] ?
iwl_mvm_scan_request+0x355/0x430 [iwlmvm]  [<ffffffffa003074e>] ?
iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]  [<ffffffff814b503f>] ?
__ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
[<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
[<ffffffff81059d56>] ? worker_thread+0x116/0x3a0  [<ffffffff81059c40>]
? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0  [<ffffffff8105ef80>] ?
kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0  [<ffffffff8105ef80>]
? kthread_create_on_node+0x180/0x180

iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5 iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT iwlwifi 0000:01:00.0:
0x000002B0 | uPc iwlwifi 0000:01:00.0: 0x00000000 | branchlink1 iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2 iwlwifi 0000:01:00.0:
0x00015ADC | interruptlink1 iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2 iwlwifi 0000:01:00.0: 0x00000175 | data1 iwlwifi 0000:01:00.0: 0x00000024 | data2 iwlwifi 0000:01:00.0: 0x000000E0 | data3 iwlwifi 0000:01:00.0: 0x0035227F | beacon time iwlwifi 0000:01:00.0: 0x005733C4 | tsf low iwlwifi 0000:01:00.0: 0x00000000 | tsf hi iwlwifi 0000:01:00.0: 0x00000000 | time gp1 iwlwifi 0000:01:00.0: 0x005733C4 | time gp2 iwlwifi 0000:01:00.0: 0x00000000 | time gp3 iwlwifi 0000:01:00.0: 0x0004160F | uCode version iwlwifi 0000:01:00.0: 0x00000144 | hw version iwlwifi 0000:01:00.0: 0x00489204

| board version iwlwifi 0000:01:00.0: 0x091F0080 | hcmd iwlwifi
0000:01:00.0: 0x00022080 | isr0 iwlwifi 0000:01:00.0: 0x01000000 |
isr1 iwlwifi 0000:01:00.0: 0x00000002 | isr2 iwlwifi 0000:01:00.0:
0x0041FCC0 | isr3 iwlwifi 0000:01:00.0: 0x00000001 | isr4 iwlwifi
0000:01:00.0: 0x01000112 | isr_pref iwlwifi 0000:01:00.0: 0x00000000 |
wait_event iwlwifi 0000:01:00.0: 0x00000080 | l2p_control iwlwifi
0000:01:00.0: 0x00010000 | l2p_duration iwlwifi 0000:01:00.0:
0x0000003F | l2p_mhvalid iwlwifi 0000:01:00.0: 0x00000000 |
l2p_addr_match iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi
0000:01:00.0: 0x22121614 | timestamp iwlwifi 0000:01:00.0: 0x00003038
| flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: Microcode SW error detected. Restarting 0x2000000.
iwlwifi 0000:01:00.0: CSR values:
iwlwifi 0000:01:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG)
iwlwifi 0000:01:00.0: CSR_HW_IF_CONFIG_REG: 0X00489204
iwlwifi 0000:01:00.0: CSR_INT_COALESCING: 0X8000ff40
iwlwifi 0000:01:00.0: CSR_INT: 0X00000000
iwlwifi 0000:01:00.0: CSR_INT_MASK: 0X00000000
iwlwifi 0000:01:00.0: CSR_FH_INT_STATUS: 0X00000000
iwlwifi 0000:01:00.0: CSR_GPIO_IN: 0X00000000
iwlwifi 0000:01:00.0: CSR_RESET: 0X00000000
iwlwifi 0000:01:00.0: CSR_GP_CNTRL: 0X080403c5
iwlwifi 0000:01:00.0: CSR_HW_REV: 0X00000144
iwlwifi 0000:01:00.0: CSR_EEPROM_REG: 0X00000000
iwlwifi 0000:01:00.0: CSR_EEPROM_GP: 0X80000000
iwlwifi 0000:01:00.0: CSR_OTP_GP_REG: 0X803a0000
iwlwifi 0000:01:00.0: CSR_GIO_REG: 0X00080044
iwlwifi 0000:01:00.0: CSR_GP_UCODE_REG: 0X00000000

iwlwifi 0000:01:00.0:           CSR_GP_DRIVER_REG: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP1: 0X00000000
iwlwifi 0000:01:00.0:           CSR_UCODE_DRV_GP2: 0X00000000
Quoted 11 lines

iwlwifi 0000:01:00.0: CSR_LED_REG: 0X00000060
iwlwifi 0000:01:00.0: CSR_DRAM_INT_TBL_REG: 0X88255090
iwlwifi 0000:01:00.0: CSR_GIO_CHICKEN_BITS: 0X27800200
iwlwifi 0000:01:00.0: CSR_ANA_PLL_CFG: 0Xd55555d5
iwlwifi 0000:01:00.0: CSR_HW_REV_WA_REG: 0X0001001a
iwlwifi 0000:01:00.0: CSR_DBG_HPET_MEM_REG: 0Xffff0010
iwlwifi 0000:01:00.0: FH register values:
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_STTS_WPTR_REG: 0X2553ce00
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_RBDCB_BASE_REG: 0X02553d40
iwlwifi 0000:01:00.0: FH_RSCSR_CHNL0_WPTR: 0X00000028
iwlwifi 0000:01:00.0: FH_MEM_RCSR_CHNL0_CONFIG_REG:

0X80801114

Quoted 58 lines

iwlwifi 0000:01:00.0: FH_MEM_RSSR_SHARED_CTRL_REG: 0X000000fc
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_STATUS_REG: 0X07030000
iwlwifi 0000:01:00.0: FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV:
0X00000000
iwlwifi 0000:01:00.0: FH_TSSR_TX_STATUS_REG: 0X07ff0001
iwlwifi 0000:01:00.0: FH_TSSR_TX_ERROR_REG: 0X00000000
iwlwifi 0000:01:00.0: FW error in SYNC CMD SCAN_REQUEST_CMD

CPU: 2 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0 #3 Hardware name:
LENOVO 20266/Yoga2, BIOS 76CN27WW 09/17/2013
Workqueue: phy0 ieee80211_scan_work
 ffff88025533f218 ffffffff814e7e35 ffff88025533c000 ffffffffa0008755
 ffff8802560efd10 0000001f00000000 0000000000000000 ffff8802560ca0d0
 ffffffff810744f0 ffff8802560efc78 ffff8802560efc78 ffff8802560efd10
Call Trace:
 [<ffffffff814e7e35>] ? dump_stack+0x41/0x51  [<ffffffffa0008755>] ?
iwl_trans_pcie_send_hcmd+0x525/0x560 [iwlwifi]  [<ffffffff810744f0>] ?
prepare_to_wait_event+0xf0/0xf0  [<ffffffffa0034633>] ?
iwl_mvm_send_cmd_status+0x33/0x120 [iwlmvm]  [<ffffffffa00396f5>] ?
iwl_mvm_scan_request+0x355/0x430 [iwlmvm]  [<ffffffffa003074e>] ?
iwl_mvm_mac_hw_scan+0x6e/0x80 [iwlmvm]  [<ffffffff814b503f>] ?
__ieee80211_scan_completed+0x12f/0x1e0
 [<ffffffff814b5afa>] ? ieee80211_scan_work+0xda/0x490
[<ffffffff810591ec>] ? process_one_work+0x13c/0x3c0
[<ffffffff81059d56>] ? worker_thread+0x116/0x3a0  [<ffffffff81059c40>]
? manage_workers.isra.30+0x280/0x280
 [<ffffffff8105f041>] ? kthread+0xc1/0xe0  [<ffffffff8105ef80>] ?
kthread_create_on_node+0x180/0x180
 [<ffffffff814ee4bc>] ? ret_from_fork+0x7c/0xb0  [<ffffffff8105ef80>]
? kthread_create_on_node+0x180/0x180

iwlwifi 0000:01:00.0: Scan failed! status 0x1 ret -5 iwlwifi 0000:01:00.0: Start IWL Error Log Dump:
iwlwifi 0000:01:00.0: Status: 0x00000000, count: 6 iwlwifi 0000:01:00.0: 0x000014F4 | ADVANCED_SYSASSERT iwlwifi 0000:01:00.0:
0x000002B0 | uPc iwlwifi 0000:01:00.0: 0x00000000 | branchlink1 iwlwifi 0000:01:00.0: 0x00000C2A | branchlink2 iwlwifi 0000:01:00.0:
0x00015ADC | interruptlink1 iwlwifi 0000:01:00.0: 0x001B20FB | interruptlink2 iwlwifi 0000:01:00.0: 0x00000175 | data1 iwlwifi 0000:01:00.0: 0x00000024 | data2 iwlwifi 0000:01:00.0: 0x000000E0 | data3 iwlwifi 0000:01:00.0: 0x003522B5 | beacon time iwlwifi 0000:01:00.0: 0x00572B49 | tsf low iwlwifi 0000:01:00.0: 0x00000000 | tsf hi iwlwifi 0000:01:00.0: 0x00000000 | time gp1 iwlwifi 0000:01:00.0: 0x00572B49 | time gp2 iwlwifi 0000:01:00.0: 0x00000000 | time gp3 iwlwifi 0000:01:00.0: 0x0004160F | uCode version iwlwifi 0000:01:00.0: 0x00000144 | hw version iwlwifi 0000:01:00.0: 0x00489204

| board version iwlwifi 0000:01:00.0: 0x091F0080 | hcmd iwlwifi
0000:01:00.0: 0x00022080 | isr0 iwlwifi 0000:01:00.0: 0x00000000 |
isr1 iwlwifi 0000:01:00.0: 0x00000002 | isr2 iwlwifi 0000:01:00.0:
0x0041FCC0 | isr3 iwlwifi 0000:01:00.0: 0x00000001 | isr4 iwlwifi
0000:01:00.0: 0x01000112 | isr_pref iwlwifi 0000:01:00.0: 0x00000000 |
wait_event iwlwifi 0000:01:00.0: 0x00000080 | l2p_control iwlwifi
0000:01:00.0: 0x00010000 | l2p_duration iwlwifi 0000:01:00.0:
0x0000003F | l2p_mhvalid iwlwifi 0000:01:00.0: 0x00000000 |
l2p_addr_match iwlwifi 0000:01:00.0: 0x00000005 | lmpm_pmg_sel iwlwifi
0000:01:00.0: 0x22121614 | timestamp iwlwifi 0000:01:00.0: 0x00002838
| flow_handler

ieee80211 phy0: Hardware restart was requested iwlwifi 0000:01:00.0:
L1 Disabled; Enabling L0S iwlwifi 0000:01:00.0: L1 Disabled; Enabling L0S

#5 lore raw

Ok - I put the pieces together:

Quoted 2 lines

iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144

This means that your NIC is 2.4GHz only. Dual band NICs print something else.

Now here come the catch. You seem to have an "old" NIC in a way that the NVM (EEPROM like) is old. In that NVM, there was a bug that advertised the A band channels but disabled the A band in SKU cap.

Can you please try the patch attached?
I will prevent the driver from trying to work on A band while the HW doesn't allow.

emmanuel

Quoted 1 line

From dd40219d34426e4f9c7d1b10653ece3dc67588c5 Mon Sep 17 00:00:00 2001

From: Emmanuel Grumbach <[email protected]>
Date: Thu, 5 Dec 2013 22:42:55 +0200
Subject: [PATCH] iwlwifi: mvm: don't allow A band if SKU forbids it

Change-Id I920b7c53dc05a41de43ab9762eb7853dc4bed1ed
Signed-off-by Emmanuel Grumbach <[email protected]>
---
 drivers/net/wireless/iwlwifi/iwl-nvm-parse.c | 4 ++++
 1 file changed, 4 insertions(+)
drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +4 -0
index 1fce0ec..9600afc 100644
@@ -192,6 +192,10 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
 			continue;
 		}
 
+		if (ch_idx >= NUM_2GHZ_CHANNELS &&
+		    !data->sku_cap_band_52GHz_enable)
+			continue;
+
 		channel = &data->channels[n_channels];
 		n_channels++;
Signature · 1 line
1.8.1.msysgit.1
author
#6 lore raw
Quoted 7 lines · Emmanuel Grumbach

Ok - I put the pieces together:

Quoted 2 lines

iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144

This means that your NIC is 2.4GHz only. Dual band NICs print something else.

This isn't correct. My NIC happily connects to my crappy Linksys WRT610Nv1 at 5GHz. After a while the router's (5GHz) radio dies, but before that i am able to easily do more than 100Mbps.

iwconfig output:

wlan0 IEEE 802.11abgn ESSID:"xxxxxxx"
Mode:Managed Frequency:5.745 GHz Access Point: xx:xx:xx:xx:xx:xx
Bit Rate=135 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=64/70 Signal level=-46 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:9 Invalid misc:3 Missed beacon:0

Quoted 3 lines

Now here come the catch. You seem to have an "old" NIC in a way that the NVM (EEPROM like) is old. In that NVM, there was a bug that advertised the A band channels but disabled the A band in SKU cap.

iwlwifi-7260-7 ucode works fine for both bands. iwlwifi-7260-8.ucode seems unable to connect at 5GHz.

Quoted 1 line

Can you please try the patch attached?

Do you still think it is a good idea to apply and test the patch?

Petko

author
#7 lore raw
In reply to Grumbach, Emmanuel
Quoted 6 lines · Emmanuel
Quoted 6 lines

Ok - thanks.
Can I see the output of

cat /sys/kernel/debug/iwlwifi/*/iwlmvm/nvm_sw | hexdump | head -5

I don't have iwlwifi entry in /sys/kernel/debug. My kernel is probably missing some config switches.

Quoted 1 line

If it easier - you can also reload the module and add debug=0x1:

Well, it wasn't easier. I got multiple "invalid module parameter" sort of error before i realized CONFIG_IWLWIFI_DEBUG should be on. ;)

Quoted 1 line

modprobe iwlwifi debug=0x1.

Attached is the dmesg output. It is 'xz' compressed as it was 150KB hog.

Quoted 2 lines

Note that you first need to unload iwlmvm, then, unload iwlwifi. After that you can reload iwlwifi. I prefer the debufgs line above though, I'll get a bit more information.

Mgh, no such entry. If you can point me as to what else i need to enable in my kernel config...

#8 lore raw
Quoted 10 lines · Petko Manolov
Quoted 6 lines · Emmanuel
Quoted 6 lines

Ok - thanks.
Can I see the output of

cat /sys/kernel/debug/iwlwifi/*/iwlmvm/nvm_sw | hexdump | head -5

I don't have iwlwifi entry in /sys/kernel/debug. My kernel is probably missing some config switches.

Quoted 7 lines
Quoted 1 line

If it easier - you can also reload the module and add debug=0x1:

Well, it wasn't easier. I got multiple "invalid module parameter" sort of error before i realized CONFIG_IWLWIFI_DEBUG should be on. ;)

Quoted 1 line

modprobe iwlwifi debug=0x1.

Attached is the dmesg output. It is 'xz' compressed as it was 150KB hog.

Unfortunately, I can't see the loading of iwlwifi.

Quoted 6 lines
Quoted 3 lines

Note that you first need to unload iwlmvm, then, unload iwlwifi. After that you can reload iwlwifi. I prefer the debufgs line above though, I'll get a bit more information.

Mgh, no such entry. If you can point me as to what else i need to enable in my kernel config...

Doesn't matter any more - I found the issue.

author
#9 lore raw
Quoted 2 lines · Emmanuel Grumbach

Unfortunately, I can't see the loading of iwlwifi.

It overflowed. That's what happen when debug != 0 ... :)

Quoted 1 line

Doesn't matter any more - I found the issue.

Ah, good. Cheers.

Petko

author
#10 lore raw
Quoted 9 lines · Petko Manolov
Quoted 2 lines · Emmanuel Grumbach

Unfortunately, I can't see the loading of iwlwifi.

It overflowed. That's what happen when debug != 0 ... :)

Quoted 1 line

Doesn't matter any more - I found the issue.

Ah, good. Cheers.

Hello Emmanuel, did you manage to fix the problem? I can see iwlwifi related patch went into 3.13.2, but in case it was supposed to fix the issue - it didn't do that for me. As usual, can i help with anything?

cheers,
Petko

#11 lore raw
Quoted 5 lines · Petko Manolov
Quoted 4 lines · Petko Manolov
Quoted 2 lines · Emmanuel Grumbach

Unfortunately, I can't see the loading of iwlwifi.

Quoted 9 lines
Quoted 5 lines

It overflowed. That's what happen when debug != 0 ... :)

Quoted 1 line

Doesn't matter any more - I found the issue.

Ah, good. Cheers.

Hello Emmanuel, did you manage to fix the problem? I can see iwlwifi related patch went into 3.13.2, but in case it was supposed to fix the issue - it didn't do that for me. As usual, can i help with anything?

There is no problem to be fixed. When I said that I found the issue, I meant that you are using a NIC which is not supposed to work on 5GHz on these channels and this leads to the issues.
The fact that it doesn't work for you with -8.ucode proves that I am correct.
I sent a patch that will disable 5GHz band for you from the driver level so that you won't suffer from firmware asserts.

You told me you could work on 5GHz with this NIC - good for you. Conclude whatever you want from this, this is none of my business - but for sure, the "issues" you are seeing are related to the fact that your NIC isn't supposed to be working on 5GHz, and hence, there is no bug to be fixed.

author
#12 lore raw
Quoted 3 lines · Emmanuel Grumbach

There is no problem to be fixed. When I said that I found the issue, I meant that you are using a NIC which is not supposed to work on 5GHz on these channels and this leads to the issues.

Right, wireless-N 7260 is not advertised as 5GHz card. I just got over my laziness and searched the net.

Quoted 1 line

The fact that it doesn't work for you with -8.ucode proves that I am correct.

This is something i'd rather not comment on. :P

Quoted 1 line

I sent a patch that will disable 5GHz band for you from the driver level so that you won't suffer from firmware asserts.

Sweet.

Quoted 3 lines

You told me you could work on 5GHz with this NIC - good for you. Conclude whatever you want from this, this is none of my business - but for sure, the "issues" you are seeing are related to the fact that your NIC isn't supposed to be working on 5GHz, and hence, there is no bug to be fixed.

Now that's funny. Intel made an effort to put 5GHz radio on this card. They even released firmware that can actually make use of this band. I am pretty sure you won't answer these, but i'll ask why is that anyway:

	a) is the 'A' band implementation so buggy that you/Intel decided to disable it altogether?
	b) it is on sale too cheap to give it's customers the 'A' band;
	c) a mix of both (or none) of the above;

I kind of doubt it is a) since my laptop would happily stay connected to the router (on AN band) for days. Were it not for the ugly 'dmesg' i'd never know there is a problem. I have no idea of the device internals, but blowing up the workqueue (or whatever) is a bit too much. With or without the A band functionality. ;)

Thanks for taking the time to look at my 'problem'.

Petko

#13 lore raw
Quoted 25 lines · Emmanuel Grumbach
Quoted 3 lines

There is no problem to be fixed. When I said that I found the issue, I meant that you are using a NIC which is not supposed to work on 5GHz on

these channels and this leads to the issues.

Right, wireless-N 7260 is not advertised as 5GHz card. I just got over my laziness and searched the net.

Quoted 1 line

The fact that it doesn't work for you with -8.ucode proves that I am correct.

This is something i'd rather not comment on. :P

Quoted 1 line

I sent a patch that will disable 5GHz band for you from the driver level so

that you won't suffer from firmware asserts.

Sweet.

Quoted 3 lines

You told me you could work on 5GHz with this NIC - good for you. Conclude whatever you want from this, this is none of my business - but for sure, the "issues" you are seeing are related to the fact that your

NIC isn't supposed to be working on 5GHz, and hence, there is no bug to be fixed.

Quoted 6 lines

Now that's funny. Intel made an effort to put 5GHz radio on this card. They even released firmware that can actually make use of this band. I am pretty sure you won't answer these, but i'll ask why is that anyway:

a) is the 'A' band implementation so buggy that you/Intel decided to
disable it altogether?

Nope - band A works very well - but just like all the vendors, Intel has several SKUs and capabilities differ between the SKUs.

Quoted 1 line
	b) it is on sale too cheap to give it's customers the 'A' band;

As a maintainer / communist / peace lover / whatever I was not chosen to be part of the pricing discussions at Intel...

Quoted 12 lines
	c) a mix of both (or none) of the above;

I kind of doubt it is a) since my laptop would happily stay connected to the router (on AN band) for days. Were it not for the ugly 'dmesg' i'd never know there is a problem. I have no idea of the device internals, but blowing up the workqueue (or whatever) is a bit too much. With or without the A band functionality. ;)

Thanks for taking the time to look at my 'problem'.

Petko

author
#14 lore raw
Quoted 2 lines · Emmanuel

Nope - band A works very well - but just like all the vendors, Intel has several SKUs and capabilities differ between the SKUs.

Got it. I'll keep an old kernel + firmware around just in case i ever need 5GHz on my Yoga 2 Pro. :)

Quoted 1 line

As a maintainer / communist / peace lover / whatever I was not chosen to be part of the pricing discussions at Intel...

I totally understand your viewpoint, which in this case is (i think) the same as mine. Have fun, dude, and thanks.

Petko

#15 lore raw
In reply to Emmanuel Grumbach
Quoted 1 line · Emmanuel Grumbach

Doesn't matter any more - I found the issue.

I have the same issue. From where is it possible to find this fix? I can't find any firmware that are released after your e-mail.

#16 lore raw
Quoted 7 lines · Niklas Claesson
Quoted 1 line · Emmanuel Grumbach

Doesn't matter any more - I found the issue.

I have the same issue. From where is it possible to find this fix? I can't find any firmware that are released after your e-mail.

Can you share your full dmesg output?
I also would like to see lspci output.

Thanks.