Skip to contentSkip to conversation

ath9k oops on rmmod

DISCUSSION Ben Greear 3 participants 4 messages Sep 9, 2010 – Sep 10, 2010

lore
Share & tools
lore

Ben Greear

author
#0 lore raw

This is from yesterday's wireless-testing repository:

I had created two STA interfaces (they didn't really work, but they added ok it seems), and then attempted to rmmod ath9k.

------------[ cut here ]------------
kernel BUG at /home/greearb/git/linux.wireless-testing/kernel/workqueue.c:2853!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map
Modules linked in: aes_i586 aes_generic fuse 8021q garp stp llc michael_mic macvlan pktgen nfs lockd fscache nfs_acl auth_rpcgss sunrpc ipv6 uinput arc4 ecb ath9k(-) mac80211 ath9k_common i2c_i801 e1000e ath9k_hw ath pcspkr cfg80211 iTCO_wdt iTCO_vendor_support microcode i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: ipt_addrtype]

Pid: 18706, comm: rmmod Not tainted 2.6.36-rc3-wl+ #4 PDSBM/PDSBM
EIP: 0060:[<c0443483>] EFLAGS: 00010286 CPU: 0
EIP is at destroy_workqueue+0x86/0xc8
EAX: 00000020 EBX: f71f9c00 ECX: 0000000f EDX: f737e900
ESI: c0943e84 EDI: f8ba0000 EBP: f49dbe90 ESP: f49dbe88
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 18706, ti=f49da000 task=f48d1a90 task.ti=f49da000)

Stack:
 f658c320 00000000 f49dbe9c f8a9313b f658d394 f49dbeb4 f8ad6706 f658c320
<0> f658d394 f7100800 f8ba0000 f49dbec8 f8ae075a f7100860 f8ae7028 f7100800
<0> f49dbedc c0585c49 f7100860 f8ae7058 f7100894 f49dbeec c0606fd6 f7100860
Call Trace:
 [<f8a9313b>] ? ieee80211_unregister_hw+0xce/0xf4 [mac80211]
 [<f8ad6706>] ? ath9k_deinit_device+0x60/0x83 [ath9k]
 [<f8ae075a>] ? ath_pci_remove+0x22/0x54 [ath9k]
 [<c0585c49>] ? pci_device_remove+0x27/0xa3
 [<c0606fd6>] ? __device_release_driver+0x59/0x9d
 [<c0607081>] ? driver_detach+0x67/0x85
 [<c060659d>] ? bus_remove_driver+0x69/0x85
 [<c06074ae>] ? driver_unregister+0x4b/0x52
 [<c0585e74>] ? pci_unregister_driver+0x2d/0x6e
 [<f8ae0659>] ? ath_pci_exit+0xd/0xf [ath9k]
 [<f8ae2be4>] ? ath9k_exit+0x8/0x2f [ath9k]
 [<c04576ae>] ? sys_delete_module+0x16f/0x1c0
 [<c0749f91>] ? do_page_fault+0x26a/0x2c5
 [<c0749fbf>] ? do_page_fault+0x298/0x2c5
 [<c0402f9c>] ? sysenter_do_call+0x12/0x28
Code: 80 3c 94 c0 eb 0c 83 f8 20 75 05 8b 53 04 eb 02 31 d2 31 c9 83 7c 8a 10 00 74 04 0f 0b eb fe 41 83 f9 0f 75 ef 83 7a 4c 00 74 04 <0f> 0b eb fe 8d 4a 54 39 4a 54 74 04 0f 0b eb fe 89 d9 89 f2 e8
EIP: [<c0443483>] destroy_workqueue+0x86/0xc8 SS:ESP 0068:f49dbe88
---[ end trace dbb86888d9028055 ]---
Signature · 2 lines
Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com
#1 lore raw

The following commit solves the issue.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8a2e8e5dec7e29c56a46ba176c664ab6a3d04118

Thanks,
Rajkumar

Quoted 53 lines · Ben Greear

This is from yesterday's wireless-testing repository:

I had created two STA interfaces (they didn't really work, but they added ok it seems), and then attempted to rmmod ath9k.

------------[ cut here ]------------
kernel BUG at /home/greearb/git/linux.wireless-testing/kernel/workqueue.c:2853!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map
Modules linked in: aes_i586 aes_generic fuse 8021q garp stp llc michael_mic macvlan pktgen nfs lockd fscache nfs_acl auth_rpcgss sunrpc ipv6 uinput arc4 ecb

ath9k(-) mac80211 ath9k_common i2c_i801 e1000e ath9k_hw ath pcspkr cfg80211 iTCO_wdt iTCO_vendor_support microcode i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: ipt_addrtype]

Pid: 18706, comm: rmmod Not tainted 2.6.36-rc3-wl+ #4 PDSBM/PDSBM
EIP: 0060:[<c0443483>] EFLAGS: 00010286 CPU: 0
EIP is at destroy_workqueue+0x86/0xc8
EAX: 00000020 EBX: f71f9c00 ECX: 0000000f EDX: f737e900
ESI: c0943e84 EDI: f8ba0000 EBP: f49dbe90 ESP: f49dbe88
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 18706, ti=f49da000 task=f48d1a90 task.ti=f49da000)

Stack:
  f658c320 00000000 f49dbe9c f8a9313b f658d394 f49dbeb4 f8ad6706 f658c320
<0> f658d394 f7100800 f8ba0000 f49dbec8 f8ae075a f7100860 f8ae7028 f7100800
<0> f49dbedc c0585c49 f7100860 f8ae7058 f7100894 f49dbeec c0606fd6 f7100860
Call Trace:
  [<f8a9313b>] ? ieee80211_unregister_hw+0xce/0xf4 [mac80211]
  [<f8ad6706>] ? ath9k_deinit_device+0x60/0x83 [ath9k]
  [<f8ae075a>] ? ath_pci_remove+0x22/0x54 [ath9k]
  [<c0585c49>] ? pci_device_remove+0x27/0xa3
  [<c0606fd6>] ? __device_release_driver+0x59/0x9d
  [<c0607081>] ? driver_detach+0x67/0x85
  [<c060659d>] ? bus_remove_driver+0x69/0x85
  [<c06074ae>] ? driver_unregister+0x4b/0x52
  [<c0585e74>] ? pci_unregister_driver+0x2d/0x6e
  [<f8ae0659>] ? ath_pci_exit+0xd/0xf [ath9k]
  [<f8ae2be4>] ? ath9k_exit+0x8/0x2f [ath9k]
  [<c04576ae>] ? sys_delete_module+0x16f/0x1c0
  [<c0749f91>] ? do_page_fault+0x26a/0x2c5
  [<c0749fbf>] ? do_page_fault+0x298/0x2c5
  [<c0402f9c>] ? sysenter_do_call+0x12/0x28
Code: 80 3c 94 c0 eb 0c 83 f8 20 75 05 8b 53 04 eb 02 31 d2 31 c9 83 7c 8a 10 00 74 04 0f 0b eb fe 41 83 f9 0f 75 ef 83 7a 4c 00 74 04 <0f> 0b eb fe 8d 4a 54 39 
4a 54 74 04 0f 0b eb fe 89 d9 89 f2 e8
EIP: [<c0443483>] destroy_workqueue+0x86/0xc8 SS:ESP 0068:f49dbe88
---[ end trace dbb86888d9028055 ]---
Signature · 7 lines
Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
author
#3 lore raw
Quoted 7 lines · Luis R. Rodriguez
Quoted 3 lines · Rajkumar Manoharan

The following commit solves the issue.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8a2e8e5dec7e29c56a46ba176c664ab6a3d04118

Um, was this a stable fix?

It's in upstream 2.6, but not in wireless-testing.

Thanks,
Ben

Quoted 6 lines

Luis
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html

Signature · 2 lines
Ben Greear <[email protected]>
Candela Technologies Inc  http://www.candelatech.com