kernel.org - master not booting on keystone (ARM v7 Cortex A15 SoC) EVMs

Hi,

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

Best regards
Uwe

--

Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel at lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good <working commit>
git bisect bad <non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook <[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions. Performs the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook <[email protected]>

Tested-by Laura Abbott <[email protected]>

Acked-by Nicolas Pitre <[email protected]>

Bytes transferred = 3934208 (3c0800 hex)
## installed monitor, freq [208333333], status 0 ## Booting kernel from Legacy Image at 88000000 ...

   Image Name:   Linux-3.18.0-11757-gd790be3-dirt
   Created:      2014-12-19  23:14:58 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3934144 Bytes = 3.8 MiB

Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
## Flattened Device Tree blob at 87000000
Booting using the fdt blob at 0x87000000 Loading Kernel Image ... OK
Using Device Tree in place at 87000000, end 8700781d

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.18.0-11757-gd790be3-dirty
(a0868495 at ares-ubuntu) (gcc version 4.7.3 20130226 (prerelease)
(crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC
2013.03) ) #16 SMP PREEMPT Fri Dec 19 18:14:46 EST 2014
[    0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7),
cr=30c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT
instruction cache
[    0.000000] Machine model: Texas Instruments Keystone 2 Edison EVM
[    0.000000] Switching to high address space at 0x800000000
[    0.000000] WARNING: unsafe modification of in-place page tables
- tainting kernel
[    0.000000] cma: Reserved 16 MiB at 0x000000085f000000
[    0.000000] Forcing write-allocate cache policy for SMP
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 917504
[    0.000000] free_area_init_node: node 0, pgdat c078c240,
node_mem_map ed7f9000
[    0.000000]   DMA zone: 1520 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 194560 pages, LIFO batch:31
[    0.000000]   HighMem zone: 722944 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 10 pages/cpu @ed7b2000 s12096 r8192
d20672 u40960
[    0.000000] pcpu-alloc: s12096 r8192 d20672 u40960 alloc=10*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists in Zone order, mobility grouping
on. Total pages: 915984
[    0.000000] Kernel command line: console=ttyS0,115200n8
rootwait=1 clk_ignore_unused debug earlyprintk rdinit=/sbin/init rw
root=/dev/ram0 initrd=0x802000000,9M
[    0.000000] log_buf_len individual max cpu contribution: 4096 bytes
[    0.000000] log_buf_len total cpu_extra contributions: 12288 bytes
[    0.000000] log_buf_len min size: 16384 bytes
[    0.000000] log_buf_len: 32768 bytes
[    0.000000] early log buf free: 14536(88%)
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7,
524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6,
262144 bytes)
[    0.000000] Memory: 3606688K/3670016K available (5220K kernel
code, 288K rwdata, 1888K rodata, 315K init, 174K bss, 46944K
reserved, 16384K cma-reserved, 2875392K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06f95bc   (7110 kB)
[    0.000000]       .init : 0xc06fa000 - 0xc0748f40   ( 316 kB)
[    0.000000]       .data : 0xc074a000 - 0xc079217c   ( 289 kB)
[    0.000000]        .bss : 0xc079217c - 0xc07bdaa0   ( 175 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] Architected cp15 timer(s) running at 208.33MHz (virt).
[    0.000003] sched_clock: 56 bits at 208MHz, resolution 4ns, wraps
every 2638828011520ns
[    0.000011] Switching to timer-based delay loop, resolution 4ns
[    0.000122] keystone timer clock @208333333 Hz
[    0.000219] Console: colour dummy device 80x30
[    0.000234] Calibrating delay loop (skipped), value calculated
using timer frequency.. 416.66 BogoMIPS (lpj=2083333)
[    0.000244] pid_max: default: 4096 minimum: 301
[    0.000306] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000314] Mountpoint-cache hash table entries: 2048 (order: 1,
8192 bytes)
[    0.000680] CPU: Testing write buffer coherency: ok
[    0.000824] /cpus/cpu at 0 missing clock-frequency property
[    0.000838] /cpus/cpu at 1 missing clock-frequency property
[    0.000851] /cpus/cpu at 2 missing clock-frequency property
[    0.000865] /cpus/cpu at 3 missing clock-frequency property
[    0.000874] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.000914] Setting up static identity map for 0x804f3760 - 0x804f3794
[    0.139325] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.229428] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.319532] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.319599] Brought up 4 CPUs
[    0.319613] CPU: All CPU(s) started in SVC mode.
[    0.320333] VFP support v0.3: implementor 41 architecture 4 part
30 variant f rev 0
[    0.324330] NET: Registered protocol family 16
[    0.325137] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[    0.330901] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4
watchpoint registers.
[    0.330908] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.339937] vgaarb: loaded
[    0.340214] SCSI subsystem initialized
[    0.340617] usbcore: registered new interface driver usbfs
[    0.340696] usbcore: registered new interface driver hub
[    0.340790] usbcore: registered new device driver usb
[    0.342609] Switched to clocksource arch_sys_counter
[    0.364910] NET: Registered protocol family 2
[    0.365338] TCP established hash table entries: 8192 (order: 3,
32768 bytes)
[    0.365389] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.365494] TCP: Hash tables configured (established 8192 bind 8192)
[    0.365531] TCP: reno registered
[    0.365540] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.365565] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.365699] NET: Registered protocol family 1
[    0.365857] RPC: Registered named UNIX socket transport module.
[    0.365864] RPC: Registered udp transport module.
[    0.365869] RPC: Registered tcp transport module.
[    0.365874] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.365889] PCI: CLS 0 bytes, default 64
[    0.366023] Unpacking initramfs...
[    0.797798] Freeing initrd memory: 9216K (c2000000 - c2900000)
[    0.797991] hw perfevents: enabled with armv7_cortex_a15 PMU
driver, 7 counters available
[    0.798630] platform alarmtimer: set dma_pfn_offset00780000
[    0.799270] futex hash table entries: 16 (order: -2, 1024 bytes)
[    0.810620] Installing knfsd (copyright (C) 1996 okir at monad.swb.de).
[    0.810718] ntfs: driver 2.1.31 [Flags: R/O].
[    0.811058] jffs2: version 2.2. (NAND) ?? 2001-2006 Red Hat, Inc.
[    0.812696] NET: Registered protocol family 38
[    0.812765] bounce: pool size: 64 pages
[    0.812992] Block layer SCSI generic (bsg) driver version 0.4
loaded (major 253)
[    0.813006] io scheduler noop registered
[    0.813018] io scheduler deadline registered
[    0.813197] io scheduler cfq registered (default)
[    0.813333] keystone_irq soc:keystone_irq at 26202a0: irqchip
registered, nr_irqs 28
[    0.813480] gpio-syscon soc:keystone_dsp_gpio at 02620240: can't
read the dir register offset!
[    0.814272] keystone-pcie 21801000.pcie: missing *config* reg space
[    1.014637] keystone-pcie 21801000.pcie: phy link never came up
[    1.014853] keystone-pcie 21801000.pcie: PCI host bridge to bus 0000:00
[    1.014865] pci_bus 0000:00: root bus resource [io  0x1000-0x3fff]
[    1.014874] pci_bus 0000:00: root bus resource [mem
0x50000000-0x5fffffff]
[    1.014883] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.014913] pci 0000:00:00.0: [104c:b009] type 01 class 0x060400
[    1.015180] PCI: bus0: Fast back to back transfers disabled
[    1.015324] PCI: bus1: Fast back to back transfers enabled
[    1.015334] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    1.015389] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.015599] pcieport 0000:00:00.0: Signaling PME through PCIe PME
interrupt
[    1.015610] pcie_pme 0000:00:00.0:pcie01: service driver pcie_pme loaded
[    1.015736] aer 0000:00:00.0:pcie02: service driver aer loaded
[    1.016058] keystone-pcie 21021000.pcie: missing *config* reg space
[    1.016075] Requested IO range too big, new size set to 64K
[    1.215646] keystone-pcie 21021000.pcie: phy link never came up
[    1.215857] keystone-pcie 21021000.pcie: PCI host bridge to bus 0001:00
[    1.215867] pci_bus 0001:00: root bus resource [io
0x10000-0xfffff] (bus address [0x0000-0xeffff])
[    1.215876] pci_bus 0001:00: root bus resource [mem
0x60000000-0x6fffffff]
[    1.215884] pci_bus 0001:00: root bus resource [bus 00-ff]
[    1.215910] pci 0001:00:00.0: [104c:b009] type 01 class 0x060400
[    1.216162] PCI: bus0: Fast back to back transfers disabled
[    1.216313] PCI: bus1: Fast back to back transfers enabled
[    1.216322] pci_bus 0001:01: busn_res: [bus 01-ff] end is updated to 01
[    1.216378] pci 0001:00:00.0: PCI bridge to [bus 01]
[    1.216578] pcieport 0001:00:00.0: Signaling PME through PCIe PME
interrupt
[    1.216588] pcie_pme 0001:00:00.0:pcie01: service driver pcie_pme loaded
[    1.216712] aer 0001:00:00.0:pcie02: service driver aer loaded
[    1.256740] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    1.256825] platform serial8250: set dma_pfn_offset00780000
[    1.257936] console [ttyS0] disabled
[    1.257993] of_serial 2530c00.serial: ttyS0 at MMIO 0x2530c00
(irq = 26, base_baud = 13020833) is a 16550A
[    2.082903] console [ttyS0] enabled
[    2.086928] of_serial 2531000.serial: ttyS1 at MMIO 0x2531000
(irq = 27, base_baud = 13020833) is a 16550A
[    2.099328] loop: module loaded
[    2.102592] at24 0-0050: 131072 byte 24c1024 EEPROM, writable, 1
bytes/write
[    2.114188] m25p80 spi32766.0: n25q128a11 (16384 Kbytes)
[    2.119507] 2 ofpart partitions found on MTD device spi32766.0
[    2.125340] Creating 2 MTD partitions on "spi32766.0":
[    2.130472] 0x000000000000-0x000000080000 : "u-boot-spl"
[    2.136411] 0x000000080000-0x000001000000 : "misc"
[    2.141765] spi_davinci 21000400.spi: Controller at 0xf014a400
[    2.147931] spi_davinci 21000600.spi: Controller at 0xf014c600
[    2.154096] spi_davinci 21000800.spi: Controller at 0xf014e800
[    2.360911] dwc3 2690000.dwc3: No power optimization available
[    2.366743] dwc3 2690000.dwc3: found 16 IN and 16 OUT endpoints
[    2.572689] dwc3 2690000.dwc3: Event buf ec9c1000 dma ac9c1000 length 256
[    2.579469] dwc3 2690000.dwc3: Event buf ec9c2000 dma ac9c2000 length 256
[    2.586254] dwc3 2690000.dwc3: Event buf ec9c3000 dma ac9c3000 length 256
[    2.593039] dwc3 2690000.dwc3: Event buf ed164000 dma ad164000 length 256
[    2.599819] dwc3 2690000.dwc3: Event buf ed166000 dma ad166000 length 256
[    2.606603] dwc3 2690000.dwc3: Event buf ed167000 dma ad167000 length 256
[    2.613387] dwc3 2690000.dwc3: Event buf ec82c000 dma ac82c000 length 256
[    2.620166] dwc3 2690000.dwc3: Event buf ec82d000 dma ac82d000 length 256
[    2.626951] dwc3 2690000.dwc3: Event buf ec82e000 dma ac82e000 length 256
[    2.633735] dwc3 2690000.dwc3: Event buf ec82f000 dma ac82f000 length 256
[    2.640514] dwc3 2690000.dwc3: Event buf ecb80000 dma acb80000 length 256
[    2.647298] dwc3 2690000.dwc3: Event buf ecb81000 dma acb81000 length 256
[    2.654083] dwc3 2690000.dwc3: Event buf ecb82000 dma acb82000 length 256
[    2.660862] dwc3 2690000.dwc3: Event buf ecb83000 dma acb83000 length 256
[    2.667647] dwc3 2690000.dwc3: Event buf ed34c000 dma ad34c000 length 256
[    2.674430] dwc3 2690000.dwc3: Event buf ed34d000 dma ad34d000 length 256
[    2.681274] platform xhci-hcd.0.auto: set dma_pfn_offset00780000
[    2.887719] dwc3 25010000.dwc3: No power optimization available
[    2.893637] dwc3 25010000.dwc3: found 16 IN and 16 OUT endpoints
[    3.099664] dwc3 25010000.dwc3: Event buf ecbd0000 dma acbd0000
length 256
[    3.106537] dwc3 25010000.dwc3: Event buf ecbd1000 dma acbd1000
length 256
[    3.113410] dwc3 25010000.dwc3: Event buf ecbd2000 dma acbd2000
length 256
[    3.120276] dwc3 25010000.dwc3: Event buf ecbd3000 dma acbd3000
length 256
[    3.127148] dwc3 25010000.dwc3: Event buf ec866000 dma ac866000
length 256
[    3.134019] dwc3 25010000.dwc3: Event buf ec867000 dma ac867000
length 256
[    3.140885] dwc3 25010000.dwc3: Event buf ecb74000 dma acb74000
length 256
[    3.147756] dwc3 25010000.dwc3: Event buf ecb75000 dma acb75000
length 256
[    3.154628] dwc3 25010000.dwc3: Event buf ed3d2000 dma ad3d2000
length 256
[    3.161495] dwc3 25010000.dwc3: Event buf ed3d3000 dma ad3d3000
length 256
[    3.168367] dwc3 25010000.dwc3: Event buf ec828000 dma ac828000
length 256
[    3.175239] dwc3 25010000.dwc3: Event buf ec829000 dma ac829000
length 256
[    3.182105] dwc3 25010000.dwc3: Event buf ed1da000 dma ad1da000
length 256
[    3.188975] dwc3 25010000.dwc3: Event buf ed1db000 dma ad1db000
length 256
[    3.195846] dwc3 25010000.dwc3: Event buf ed160000 dma ad160000
length 256
[    3.202716] dwc3 25010000.dwc3: Event buf ed161000 dma ad161000
length 256
[    3.209649] platform xhci-hcd.1.auto: set dma_pfn_offset00780000
[    3.215984] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    3.221567] xhci-hcd xhci-hcd.0.auto: new USB bus registered,
assigned bus number 1
[    3.229502] xhci-hcd xhci-hcd.0.auto: irq 34, io mem 0x02690000
[    3.235545] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    3.242326] usb usb1: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.249552] usb usb1: Product: xHCI Host Controller
[    3.254430] usb usb1: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.261643] usb usb1: SerialNumber: xhci-hcd.0.auto
[    3.266901] hub 1-0:1.0: USB hub found
[    3.270666] hub 1-0:1.0: 1 port detected
[    3.274845] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    3.280445] xhci-hcd xhci-hcd.0.auto: new USB bus registered,
assigned bus number 2
[    3.288235] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[    3.295027] usb usb2: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.302240] usb usb2: Product: xHCI Host Controller
[    3.307118] usb usb2: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.314340] usb usb2: SerialNumber: xhci-hcd.0.auto
[    3.319582] hub 2-0:1.0: USB hub found
[    3.323353] hub 2-0:1.0: 1 port detected
[    3.327559] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    3.333182] xhci-hcd xhci-hcd.1.auto: new USB bus registered,
assigned bus number 3
[    3.341014] xhci-hcd xhci-hcd.1.auto: irq 68, io mem 0x25010000
[    3.347041] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[    3.353832] usb usb3: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.361045] usb usb3: Product: xHCI Host Controller
[    3.365923] usb usb3: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.373836] usb usb3: SerialNumber: xhci-hcd.1.auto
[    3.379079] hub 3-0:1.0: USB hub found
[    3.382850] hub 3-0:1.0: 1 port detected
[    3.387013] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    3.392622] xhci-hcd xhci-hcd.1.auto: new USB bus registered,
assigned bus number 4
[    3.400399] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[    3.407189] usb usb4: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.414412] usb usb4: Product: xHCI Host Controller
[    3.419282] usb usb4: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.427836] usb usb4: SerialNumber: xhci-hcd.1.auto
[    3.433091] hub 4-0:1.0: USB hub found
[    3.436850] hub 4-0:1.0: 1 port detected
[    3.441197] usbcore: registered new interface driver usb-storage
[    3.447572] mousedev: PS/2 mouse device common for all mice
[    3.453353] i2c /dev entries driver
[    3.457258] davinci-wdt 22f0080.wdt: heartbeat 60 sec
[    3.462762] usbcore: registered new interface driver usbhid
[    3.468325] usbhid: USB HID core driver
[    3.472893] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xac
[    3.479237] nand: Micron MT29F4G08ABBDAHC
[    3.483945] nand: 512 MiB, SLC, erase size: 128 KiB, page size:
2048, OOB size: 64
[    3.491793] Bad block table found at page 262080, version 0x01
[    3.498135] Bad block table found at page 262016, version 0x01
[    3.504281] 3 ofpart partitions found on MTD device 30000000.nand
[    3.510365] Creating 3 MTD partitions on "30000000.nand":
[    3.515765] 0x000000000000-0x000000100000 : "u-boot"
[    3.521319] 0x000000100000-0x000000180000 : "params"
[    3.526843] 0x000000180000-0x000020000000 : "ubifs"
[    3.532529] davinci_nand 30000000.nand: controller rev. 2.5
[    3.539597] platform oprofile-perf.0: set dma_pfn_offset00780000
[    3.545733] oprofile: using timer interrupt.
[    3.550019] Netfilter messages via NETLINK v0.30.
[    3.554737] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[    3.561219] ctnetlink v0.93: registering with nfnetlink.
[    3.566790] ipip: IPv4 over IPv4 tunneling driver
[    3.571876] gre: GRE over IPv4 demultiplexor driver
[    3.576762] ip_gre: GRE over IPv4 tunneling driver
[    3.582421] ip_tables: (C) 2000-2006 Netfilter Core Team
[    3.587816] ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully
[    3.594195] arp_tables: (C) 2002 David S. Miller
[    3.598847] TCP: cubic registered
[    3.602157] Initializing XFRM netlink socket
[    3.606965] NET: Registered protocol family 10
[    3.612005] NET: Registered protocol family 17
[    3.616472] NET: Registered protocol family 15
[    3.620912] 8021q: 802.1Q VLAN Support v1.8
[    3.626750] sctp: Hash tables configured (established 65536 bind 65536)
[    3.633786] Registering SWP/SWPB emulation handler
[    3.641684] clk: Not disabling unused clocks
[    3.646516] Freeing unused kernel memory: 312K (c06fa000 - c0748000)

INIT: version 2.88 booting
Starting udev
Starting Bootlog daemon: bootlogd.
Configuring network interfaces... ifconfig: SIOCGIFFLAGS: No such device
ifconfig: SIOCGIFFLAGS: No such device
done.
Mon Jul 8 13:27:00 UTC 2013
Configuring update-modules.
ERROR: could not open directory /lib/modules/3.18.0-11757-gd790be3-dirty: No such file or directory
WARNING: -e needs -E or -F
ERROR: could not open directory /lib/modules/3.18.0-11757-gd790be3-dirty: No such file or directory
INIT: Entering runlevel: 5dules: No such file or direct Starting telnet daemon.
Starting syslogd/klogd: done
Starting thttpd.
Stopping Bootlog daemon: bootlogd.

_____ _____ _ _

|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|
              |___|                    |___|

Arago Project http://arago-project.org keystone-evm ttyS0

Arago 2013.04 keystone-evm ttyS0

keystone-evm login: root
root at keystone-evm:~# uname -a
Linux keystone-evm 3.18.0-11757-gd790be3-dirty #16 SMP PREEMPT Fri

Dec 19 18:14:46 EST 2014 armv7l GNU/Linux

root at keystone-evm:~#

Signature · 2 lines

Murali Karicheri
Linux Kernel, Texas Instruments

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Best regards
Uwe

Quoted 441 lines · Murali Karicheri

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions. Performs the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Bytes transferred = 3934208 (3c0800 hex)
## installed monitor, freq [208333333], status 0 ## Booting kernel from Legacy Image at 88000000 ...

    Image Name:   Linux-3.18.0-11757-gd790be3-dirt
    Created:      2014-12-19  23:14:58 UTC
    Image Type:   ARM Linux Kernel Image (uncompressed)
    Data Size:    3934144 Bytes = 3.8 MiB
    Load Address: 80008000
    Entry Point:  80008000
    Verifying Checksum ... OK
## Flattened Device Tree blob at 87000000
    Booting using the fdt blob at 0x87000000
    Loading Kernel Image ... OK
    Using Device Tree in place at 87000000, end 8700781d

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.18.0-11757-gd790be3-dirty
(a0868495 at ares-ubuntu) (gcc version 4.7.3 20130226 (prerelease)
(crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC
2013.03) ) #16 SMP PREEMPT Fri Dec 19 18:14:46 EST 2014
[    0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7),
cr=30c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT
instruction cache
[    0.000000] Machine model: Texas Instruments Keystone 2 Edison EVM
[    0.000000] Switching to high address space at 0x800000000
[    0.000000] WARNING: unsafe modification of in-place page tables
- tainting kernel
[    0.000000] cma: Reserved 16 MiB at 0x000000085f000000
[    0.000000] Forcing write-allocate cache policy for SMP
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 917504
[    0.000000] free_area_init_node: node 0, pgdat c078c240,
node_mem_map ed7f9000
[    0.000000]   DMA zone: 1520 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 194560 pages, LIFO batch:31
[    0.000000]   HighMem zone: 722944 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 10 pages/cpu @ed7b2000 s12096 r8192
d20672 u40960
[    0.000000] pcpu-alloc: s12096 r8192 d20672 u40960 alloc=10*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists in Zone order, mobility grouping
on. Total pages: 915984
[    0.000000] Kernel command line: console=ttyS0,115200n8
rootwait=1 clk_ignore_unused debug earlyprintk rdinit=/sbin/init rw
root=/dev/ram0 initrd=0x802000000,9M
[    0.000000] log_buf_len individual max cpu contribution: 4096 bytes
[    0.000000] log_buf_len total cpu_extra contributions: 12288 bytes
[    0.000000] log_buf_len min size: 16384 bytes
[    0.000000] log_buf_len: 32768 bytes
[    0.000000] early log buf free: 14536(88%)
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7,
524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6,
262144 bytes)
[    0.000000] Memory: 3606688K/3670016K available (5220K kernel
code, 288K rwdata, 1888K rodata, 315K init, 174K bss, 46944K
reserved, 16384K cma-reserved, 2875392K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06f95bc   (7110 kB)
[    0.000000]       .init : 0xc06fa000 - 0xc0748f40   ( 316 kB)
[    0.000000]       .data : 0xc074a000 - 0xc079217c   ( 289 kB)
[    0.000000]        .bss : 0xc079217c - 0xc07bdaa0   ( 175 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] Architected cp15 timer(s) running at 208.33MHz (virt).
[    0.000003] sched_clock: 56 bits at 208MHz, resolution 4ns, wraps
every 2638828011520ns
[    0.000011] Switching to timer-based delay loop, resolution 4ns
[    0.000122] keystone timer clock @208333333 Hz
[    0.000219] Console: colour dummy device 80x30
[    0.000234] Calibrating delay loop (skipped), value calculated
using timer frequency.. 416.66 BogoMIPS (lpj=2083333)
[    0.000244] pid_max: default: 4096 minimum: 301
[    0.000306] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000314] Mountpoint-cache hash table entries: 2048 (order: 1,
8192 bytes)
[    0.000680] CPU: Testing write buffer coherency: ok
[    0.000824] /cpus/cpu at 0 missing clock-frequency property
[    0.000838] /cpus/cpu at 1 missing clock-frequency property
[    0.000851] /cpus/cpu at 2 missing clock-frequency property
[    0.000865] /cpus/cpu at 3 missing clock-frequency property
[    0.000874] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.000914] Setting up static identity map for 0x804f3760 - 0x804f3794
[    0.139325] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.229428] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.319532] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.319599] Brought up 4 CPUs
[    0.319613] CPU: All CPU(s) started in SVC mode.
[    0.320333] VFP support v0.3: implementor 41 architecture 4 part
30 variant f rev 0
[    0.324330] NET: Registered protocol family 16
[    0.325137] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[    0.330901] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4
watchpoint registers.
[    0.330908] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.339937] vgaarb: loaded
[    0.340214] SCSI subsystem initialized
[    0.340617] usbcore: registered new interface driver usbfs
[    0.340696] usbcore: registered new interface driver hub
[    0.340790] usbcore: registered new device driver usb
[    0.342609] Switched to clocksource arch_sys_counter
[    0.364910] NET: Registered protocol family 2
[    0.365338] TCP established hash table entries: 8192 (order: 3,
32768 bytes)
[    0.365389] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.365494] TCP: Hash tables configured (established 8192 bind 8192)
[    0.365531] TCP: reno registered
[    0.365540] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.365565] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.365699] NET: Registered protocol family 1
[    0.365857] RPC: Registered named UNIX socket transport module.
[    0.365864] RPC: Registered udp transport module.
[    0.365869] RPC: Registered tcp transport module.
[    0.365874] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.365889] PCI: CLS 0 bytes, default 64
[    0.366023] Unpacking initramfs...
[    0.797798] Freeing initrd memory: 9216K (c2000000 - c2900000)
[    0.797991] hw perfevents: enabled with armv7_cortex_a15 PMU
driver, 7 counters available
[    0.798630] platform alarmtimer: set dma_pfn_offset00780000
[    0.799270] futex hash table entries: 16 (order: -2, 1024 bytes)
[    0.810620] Installing knfsd (copyright (C) 1996 okir at monad.swb.de).
[    0.810718] ntfs: driver 2.1.31 [Flags: R/O].
[    0.811058] jffs2: version 2.2. (NAND) ?? 2001-2006 Red Hat, Inc.
[    0.812696] NET: Registered protocol family 38
[    0.812765] bounce: pool size: 64 pages
[    0.812992] Block layer SCSI generic (bsg) driver version 0.4
loaded (major 253)
[    0.813006] io scheduler noop registered
[    0.813018] io scheduler deadline registered
[    0.813197] io scheduler cfq registered (default)
[    0.813333] keystone_irq soc:keystone_irq at 26202a0: irqchip
registered, nr_irqs 28
[    0.813480] gpio-syscon soc:keystone_dsp_gpio at 02620240: can't
read the dir register offset!
[    0.814272] keystone-pcie 21801000.pcie: missing *config* reg space
[    1.014637] keystone-pcie 21801000.pcie: phy link never came up
[    1.014853] keystone-pcie 21801000.pcie: PCI host bridge to bus 0000:00
[    1.014865] pci_bus 0000:00: root bus resource [io  0x1000-0x3fff]
[    1.014874] pci_bus 0000:00: root bus resource [mem
0x50000000-0x5fffffff]
[    1.014883] pci_bus 0000:00: root bus resource [bus 00-ff]
[    1.014913] pci 0000:00:00.0: [104c:b009] type 01 class 0x060400
[    1.015180] PCI: bus0: Fast back to back transfers disabled
[    1.015324] PCI: bus1: Fast back to back transfers enabled
[    1.015334] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    1.015389] pci 0000:00:00.0: PCI bridge to [bus 01]
[    1.015599] pcieport 0000:00:00.0: Signaling PME through PCIe PME
interrupt
[    1.015610] pcie_pme 0000:00:00.0:pcie01: service driver pcie_pme loaded
[    1.015736] aer 0000:00:00.0:pcie02: service driver aer loaded
[    1.016058] keystone-pcie 21021000.pcie: missing *config* reg space
[    1.016075] Requested IO range too big, new size set to 64K
[    1.215646] keystone-pcie 21021000.pcie: phy link never came up
[    1.215857] keystone-pcie 21021000.pcie: PCI host bridge to bus 0001:00
[    1.215867] pci_bus 0001:00: root bus resource [io
0x10000-0xfffff] (bus address [0x0000-0xeffff])
[    1.215876] pci_bus 0001:00: root bus resource [mem
0x60000000-0x6fffffff]
[    1.215884] pci_bus 0001:00: root bus resource [bus 00-ff]
[    1.215910] pci 0001:00:00.0: [104c:b009] type 01 class 0x060400
[    1.216162] PCI: bus0: Fast back to back transfers disabled
[    1.216313] PCI: bus1: Fast back to back transfers enabled
[    1.216322] pci_bus 0001:01: busn_res: [bus 01-ff] end is updated to 01
[    1.216378] pci 0001:00:00.0: PCI bridge to [bus 01]
[    1.216578] pcieport 0001:00:00.0: Signaling PME through PCIe PME
interrupt
[    1.216588] pcie_pme 0001:00:00.0:pcie01: service driver pcie_pme loaded
[    1.216712] aer 0001:00:00.0:pcie02: service driver aer loaded
[    1.256740] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    1.256825] platform serial8250: set dma_pfn_offset00780000
[    1.257936] console [ttyS0] disabled
[    1.257993] of_serial 2530c00.serial: ttyS0 at MMIO 0x2530c00
(irq = 26, base_baud = 13020833) is a 16550A
[    2.082903] console [ttyS0] enabled
[    2.086928] of_serial 2531000.serial: ttyS1 at MMIO 0x2531000
(irq = 27, base_baud = 13020833) is a 16550A
[    2.099328] loop: module loaded
[    2.102592] at24 0-0050: 131072 byte 24c1024 EEPROM, writable, 1
bytes/write
[    2.114188] m25p80 spi32766.0: n25q128a11 (16384 Kbytes)
[    2.119507] 2 ofpart partitions found on MTD device spi32766.0
[    2.125340] Creating 2 MTD partitions on "spi32766.0":
[    2.130472] 0x000000000000-0x000000080000 : "u-boot-spl"
[    2.136411] 0x000000080000-0x000001000000 : "misc"
[    2.141765] spi_davinci 21000400.spi: Controller at 0xf014a400
[    2.147931] spi_davinci 21000600.spi: Controller at 0xf014c600
[    2.154096] spi_davinci 21000800.spi: Controller at 0xf014e800
[    2.360911] dwc3 2690000.dwc3: No power optimization available
[    2.366743] dwc3 2690000.dwc3: found 16 IN and 16 OUT endpoints
[    2.572689] dwc3 2690000.dwc3: Event buf ec9c1000 dma ac9c1000 length 256
[    2.579469] dwc3 2690000.dwc3: Event buf ec9c2000 dma ac9c2000 length 256
[    2.586254] dwc3 2690000.dwc3: Event buf ec9c3000 dma ac9c3000 length 256
[    2.593039] dwc3 2690000.dwc3: Event buf ed164000 dma ad164000 length 256
[    2.599819] dwc3 2690000.dwc3: Event buf ed166000 dma ad166000 length 256
[    2.606603] dwc3 2690000.dwc3: Event buf ed167000 dma ad167000 length 256
[    2.613387] dwc3 2690000.dwc3: Event buf ec82c000 dma ac82c000 length 256
[    2.620166] dwc3 2690000.dwc3: Event buf ec82d000 dma ac82d000 length 256
[    2.626951] dwc3 2690000.dwc3: Event buf ec82e000 dma ac82e000 length 256
[    2.633735] dwc3 2690000.dwc3: Event buf ec82f000 dma ac82f000 length 256
[    2.640514] dwc3 2690000.dwc3: Event buf ecb80000 dma acb80000 length 256
[    2.647298] dwc3 2690000.dwc3: Event buf ecb81000 dma acb81000 length 256
[    2.654083] dwc3 2690000.dwc3: Event buf ecb82000 dma acb82000 length 256
[    2.660862] dwc3 2690000.dwc3: Event buf ecb83000 dma acb83000 length 256
[    2.667647] dwc3 2690000.dwc3: Event buf ed34c000 dma ad34c000 length 256
[    2.674430] dwc3 2690000.dwc3: Event buf ed34d000 dma ad34d000 length 256
[    2.681274] platform xhci-hcd.0.auto: set dma_pfn_offset00780000
[    2.887719] dwc3 25010000.dwc3: No power optimization available
[    2.893637] dwc3 25010000.dwc3: found 16 IN and 16 OUT endpoints
[    3.099664] dwc3 25010000.dwc3: Event buf ecbd0000 dma acbd0000
length 256
[    3.106537] dwc3 25010000.dwc3: Event buf ecbd1000 dma acbd1000
length 256
[    3.113410] dwc3 25010000.dwc3: Event buf ecbd2000 dma acbd2000
length 256
[    3.120276] dwc3 25010000.dwc3: Event buf ecbd3000 dma acbd3000
length 256
[    3.127148] dwc3 25010000.dwc3: Event buf ec866000 dma ac866000
length 256
[    3.134019] dwc3 25010000.dwc3: Event buf ec867000 dma ac867000
length 256
[    3.140885] dwc3 25010000.dwc3: Event buf ecb74000 dma acb74000
length 256
[    3.147756] dwc3 25010000.dwc3: Event buf ecb75000 dma acb75000
length 256
[    3.154628] dwc3 25010000.dwc3: Event buf ed3d2000 dma ad3d2000
length 256
[    3.161495] dwc3 25010000.dwc3: Event buf ed3d3000 dma ad3d3000
length 256
[    3.168367] dwc3 25010000.dwc3: Event buf ec828000 dma ac828000
length 256
[    3.175239] dwc3 25010000.dwc3: Event buf ec829000 dma ac829000
length 256
[    3.182105] dwc3 25010000.dwc3: Event buf ed1da000 dma ad1da000
length 256
[    3.188975] dwc3 25010000.dwc3: Event buf ed1db000 dma ad1db000
length 256
[    3.195846] dwc3 25010000.dwc3: Event buf ed160000 dma ad160000
length 256
[    3.202716] dwc3 25010000.dwc3: Event buf ed161000 dma ad161000
length 256
[    3.209649] platform xhci-hcd.1.auto: set dma_pfn_offset00780000
[    3.215984] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    3.221567] xhci-hcd xhci-hcd.0.auto: new USB bus registered,
assigned bus number 1
[    3.229502] xhci-hcd xhci-hcd.0.auto: irq 34, io mem 0x02690000
[    3.235545] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    3.242326] usb usb1: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.249552] usb usb1: Product: xHCI Host Controller
[    3.254430] usb usb1: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.261643] usb usb1: SerialNumber: xhci-hcd.0.auto
[    3.266901] hub 1-0:1.0: USB hub found
[    3.270666] hub 1-0:1.0: 1 port detected
[    3.274845] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    3.280445] xhci-hcd xhci-hcd.0.auto: new USB bus registered,
assigned bus number 2
[    3.288235] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[    3.295027] usb usb2: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.302240] usb usb2: Product: xHCI Host Controller
[    3.307118] usb usb2: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.314340] usb usb2: SerialNumber: xhci-hcd.0.auto
[    3.319582] hub 2-0:1.0: USB hub found
[    3.323353] hub 2-0:1.0: 1 port detected
[    3.327559] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    3.333182] xhci-hcd xhci-hcd.1.auto: new USB bus registered,
assigned bus number 3
[    3.341014] xhci-hcd xhci-hcd.1.auto: irq 68, io mem 0x25010000
[    3.347041] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[    3.353832] usb usb3: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.361045] usb usb3: Product: xHCI Host Controller
[    3.365923] usb usb3: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.373836] usb usb3: SerialNumber: xhci-hcd.1.auto
[    3.379079] hub 3-0:1.0: USB hub found
[    3.382850] hub 3-0:1.0: 1 port detected
[    3.387013] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    3.392622] xhci-hcd xhci-hcd.1.auto: new USB bus registered,
assigned bus number 4
[    3.400399] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[    3.407189] usb usb4: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    3.414412] usb usb4: Product: xHCI Host Controller
[    3.419282] usb usb4: Manufacturer: Linux
3.18.0-11757-gd790be3-dirty xhci-hcd
[    3.427836] usb usb4: SerialNumber: xhci-hcd.1.auto
[    3.433091] hub 4-0:1.0: USB hub found
[    3.436850] hub 4-0:1.0: 1 port detected
[    3.441197] usbcore: registered new interface driver usb-storage
[    3.447572] mousedev: PS/2 mouse device common for all mice
[    3.453353] i2c /dev entries driver
[    3.457258] davinci-wdt 22f0080.wdt: heartbeat 60 sec
[    3.462762] usbcore: registered new interface driver usbhid
[    3.468325] usbhid: USB HID core driver
[    3.472893] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xac
[    3.479237] nand: Micron MT29F4G08ABBDAHC
[    3.483945] nand: 512 MiB, SLC, erase size: 128 KiB, page size:
2048, OOB size: 64
[    3.491793] Bad block table found at page 262080, version 0x01
[    3.498135] Bad block table found at page 262016, version 0x01
[    3.504281] 3 ofpart partitions found on MTD device 30000000.nand
[    3.510365] Creating 3 MTD partitions on "30000000.nand":
[    3.515765] 0x000000000000-0x000000100000 : "u-boot"
[    3.521319] 0x000000100000-0x000000180000 : "params"
[    3.526843] 0x000000180000-0x000020000000 : "ubifs"
[    3.532529] davinci_nand 30000000.nand: controller rev. 2.5
[    3.539597] platform oprofile-perf.0: set dma_pfn_offset00780000
[    3.545733] oprofile: using timer interrupt.
[    3.550019] Netfilter messages via NETLINK v0.30.
[    3.554737] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[    3.561219] ctnetlink v0.93: registering with nfnetlink.
[    3.566790] ipip: IPv4 over IPv4 tunneling driver
[    3.571876] gre: GRE over IPv4 demultiplexor driver
[    3.576762] ip_gre: GRE over IPv4 tunneling driver
[    3.582421] ip_tables: (C) 2000-2006 Netfilter Core Team
[    3.587816] ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully
[    3.594195] arp_tables: (C) 2002 David S. Miller
[    3.598847] TCP: cubic registered
[    3.602157] Initializing XFRM netlink socket
[    3.606965] NET: Registered protocol family 10
[    3.612005] NET: Registered protocol family 17
[    3.616472] NET: Registered protocol family 15
[    3.620912] 8021q: 802.1Q VLAN Support v1.8
[    3.626750] sctp: Hash tables configured (established 65536 bind 65536)
[    3.633786] Registering SWP/SWPB emulation handler
[    3.641684] clk: Not disabling unused clocks
[    3.646516] Freeing unused kernel memory: 312K (c06fa000 - c0748000)

INIT: version 2.88 booting
Starting udev
Starting Bootlog daemon: bootlogd.
Configuring network interfaces... ifconfig: SIOCGIFFLAGS: No such device
ifconfig: SIOCGIFFLAGS: No such device
done.
Mon Jul 8 13:27:00 UTC 2013
Configuring update-modules.
ERROR: could not open directory /lib/modules/3.18.0-11757-gd790be3-dirty: No such file or directory
WARNING: -e needs -E or -F
ERROR: could not open directory /lib/modules/3.18.0-11757-gd790be3-dirty: No such file or directory
INIT: Entering runlevel: 5dules: No such file or direct Starting telnet daemon.
Starting syslogd/klogd: done
Starting thttpd.
Stopping Bootlog daemon: bootlogd.

  _____                    _____           _         _
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|
               |___|                    |___|

Arago Project http://arago-project.org keystone-evm ttyS0

Arago 2013.04 keystone-evm ttyS0

keystone-evm login: root
root at keystone-evm:~# uname -a
Linux keystone-evm 3.18.0-11757-gd790be3-dirty #16 SMP PREEMPT Fri

Dec 19 18:14:46 EST 2014 armv7l GNU/Linux

root at keystone-evm:~#

--
Murali Karicheri
Linux Kernel, Texas Instruments

Quoted 4 lines · Uwe Kleine-K?nig

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 61 lines

Best regards
Uwe

Quoted 56 lines · Murali Karicheri

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Quoted 72 lines · Murali Karicheri

Quoted 4 lines · Uwe Kleine-K?nig

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 61 lines

Best regards
Uwe

Quoted 56 lines · Murali Karicheri

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case. kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +0 -0

index cda7c40..4e6ef89 100644

Quoted 72 lines · Murali Karicheri

Quoted 4 lines · Uwe Kleine-K?nig

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 61 lines

Best regards
Uwe

Quoted 56 lines · Murali Karicheri

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case. kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +0 -0

index cda7c40..4e6ef89 100644

CC + Santosh (Keystone maintainer)

Quoted 106 lines · Murali Karicheri

Quoted 6 lines · Uwe Kleine-K?nig

Quoted 5 lines

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Quoted 70 lines

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 64 lines

Best regards
Uwe

Quoted 59 lines · Murali Karicheri

Quoted 19 lines · Tyler Baker

Hello,

Quoted 15 lines · Uwe Kleine-K?nig

Hello,

Quoted 10 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
and
tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory
regions
into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory
lost to
padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case.
kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +2 -2

index cda7c40..4e6ef89 100644
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
  static void __init map_lowmem(void)
  {
         struct memblock_region *reg;
-       unsigned long kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
-       unsigned long kernel_x_end = round_up(__pa(__init_end),
 SECTION_SIZE);
+       phys_addr_t kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
+       phys_addr_t kernel_x_end = round_up(__pa(__init_end),

SECTION_SIZE);

Quoted 2 lines

         /* Map all the lowmem memory banks. */
         for_each_memblock(memory, reg) {

+RMK

Quoted 2 lines · Murali Karicheri

CC + Santosh (Keystone maintainer)

Thanks Murali !!

Quoted 108 lines · Grygorii.Strashko at linaro.org

Quoted 107 lines · Murali Karicheri

Quoted 6 lines · Uwe Kleine-K?nig

Quoted 5 lines

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Quoted 71 lines

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 65 lines

Best regards
Uwe

Quoted 60 lines · Murali Karicheri

Quoted 20 lines · Tyler Baker

Hello,

Quoted 16 lines · Uwe Kleine-K?nig

Hello,

Quoted 10 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
and
tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you
bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory
regions
into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory
lost to
padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case.
kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +2 -2

index cda7c40..4e6ef89 100644
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
  static void __init map_lowmem(void)
  {
         struct memblock_region *reg;
-       unsigned long kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
-       unsigned long kernel_x_end = round_up(__pa(__init_end),
 SECTION_SIZE);
+       phys_addr_t kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
+       phys_addr_t kernel_x_end = round_up(__pa(__init_end),

SECTION_SIZE);

Quoted 3 lines

Quoted 2 lines

         /* Map all the lowmem memory banks. */
         for_each_memblock(memory, reg) {

Uwe,

The fix looks straight forward to me. Can you please comment if you think otherwise.

Quoted 118 lines · santosh.shilimkar at oracle.com

+RMK

Quoted 2 lines · Murali Karicheri

CC + Santosh (Keystone maintainer)

Thanks Murali !!

Quoted 111 lines · Grygorii.Strashko at linaro.org

Quoted 110 lines · Murali Karicheri

Quoted 6 lines · Uwe Kleine-K?nig

Quoted 5 lines

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Quoted 74 lines

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 68 lines

Best regards
Uwe

Quoted 63 lines · Murali Karicheri

Quoted 22 lines · Tyler Baker

Hello,

Quoted 18 lines · Uwe Kleine-K?nig

Hello,

Quoted 11 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
and
tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7
and someone is working to address this. v3.18 booted up fine on my
EVM.

Quoted 1 line

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you
bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory
regions
into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory
lost to
padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura
Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case.
kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +2 -2

index cda7c40..4e6ef89 100644
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
  static void __init map_lowmem(void)
  {
         struct memblock_region *reg;
-       unsigned long kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
-       unsigned long kernel_x_end = round_up(__pa(__init_end),
 SECTION_SIZE);
+       phys_addr_t kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
+       phys_addr_t kernel_x_end = round_up(__pa(__init_end),

SECTION_SIZE);

Quoted 4 lines

Quoted 3 lines

Quoted 2 lines

         /* Map all the lowmem memory banks. */
         for_each_memblock(memory, reg) {

Uwe,

Sorry Uwe !!
I mean to ask this question to Nicolas and RMK.

Quoted 3 lines

The fix looks straight forward to me. Can you please comment if you think otherwise.

Grygorii,
Can you please add the formatted patch to RMK's patch system ?

Quoted 118 lines · santosh.shilimkar at oracle.com

+RMK

Quoted 2 lines · Murali Karicheri

CC + Santosh (Keystone maintainer)

Thanks Murali !!

Quoted 111 lines · Grygorii.Strashko at linaro.org

Quoted 110 lines · Murali Karicheri

Quoted 6 lines · Uwe Kleine-K?nig

Quoted 5 lines

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Quoted 74 lines

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 68 lines

Best regards
Uwe

Quoted 63 lines · Murali Karicheri

Quoted 22 lines · Tyler Baker

Hello,

Quoted 18 lines · Uwe Kleine-K?nig

Hello,

Quoted 11 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
and
tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7
and someone is working to address this. v3.18 booted up fine on my
EVM.

Quoted 1 line

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you
bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory
regions
into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory
lost to
padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura
Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case.
kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +2 -2

index cda7c40..4e6ef89 100644
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
  static void __init map_lowmem(void)
  {
         struct memblock_region *reg;
-       unsigned long kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
-       unsigned long kernel_x_end = round_up(__pa(__init_end),
 SECTION_SIZE);
+       phys_addr_t kernel_x_start = round_down(__pa(_stext),
 SECTION_SIZE);
+       phys_addr_t kernel_x_end = round_up(__pa(__init_end),

SECTION_SIZE);

Quoted 4 lines

Quoted 3 lines

Quoted 2 lines

         /* Map all the lowmem memory banks. */
         for_each_memblock(memory, reg) {

Uwe,

Sorry Uwe !!
I mean to ask this question to Nicolas and RMK.

Quoted 3 lines

The fix looks straight forward to me. Can you please comment if you think otherwise.

Grygorii,
Can you please add the formatted patch to RMK's patch system ?

On 12/23/2014 08:13 PM, santosh.shilimkar at oracle.com wrote:

Quoted 2 lines

Grygorii,
Can you please add the formatted patch to RMK's patch system ?

Done:
Your patch has been accepted as patch 8253/1

Quoted 1 line · Grygorii.Strashko at linaro.org

On 12/23/2014 08:13 PM, santosh.shilimkar at oracle.com wrote:

[..]

Quoted 3 lines

Quoted 2 lines

Grygorii,
Can you please add the formatted patch to RMK's patch system ?

Quoted 3 lines

Done:
Your patch has been accepted as patch 8253/1

Thanks Grygorii !!

Regards,
Santosh

Quoted 13 lines · santosh.shilimkar at oracle.com

Quoted 1 line · Grygorii.Strashko at linaro.org

On 12/23/2014 08:13 PM, santosh.shilimkar at oracle.com wrote:

[..]

Quoted 6 lines

Quoted 2 lines

Grygorii,
Can you please add the formatted patch to RMK's patch system ?

Done:
Your patch has been accepted as patch 8253/1

Quoted 2 lines

Thanks Grygorii !!

Santosh, Russel,

Just wondering when this get pulled to the master branch? I have checked v3.19-rc2 and it is not in. Note that arch/arm/mach-keystone is currently broken without this patch.

Quoted 72 lines · Murali Karicheri

Quoted 4 lines · Uwe Kleine-K?nig

Hello,

I cannot say anything here, but maybe the people being involved in 1e6b48116a950 can. I added them to Cc and didn't trim the mail for them.

Uwe,

Thanks for copying the commit owners. Looking forward for a response from them.

Murali

Quoted 61 lines

Best regards
Uwe

Quoted 56 lines · Murali Karicheri

Quoted 18 lines · Tyler Baker

Hello,

Quoted 14 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

This was my first git bisect work. git bisect showed me below commit as bad commit. But it is pretty old commit. I tried reverting the commit and my board booted up fine. The boot log attached below. I did following until I got the bad commit. v3.18 also worked fine.

git bisect start
git bisect good<working commit>
git bisect bad<non working commit>

I build and test. If boots fine, I did git bisect good and if not, git bisect bad until I got the bad commit. Can someone comment if my bisect steps look sane? If so, what is wrong with the below commit? Ours is a LPAE SoC.

commit 1e6b48116a95046ec51f3d40f83aff8b006674d7

Author: Kees Cook<[email protected]>
Date:   Thu Apr 3 17:28:11 2014 -0700

ARM: mm: allow non-text sections to be non-executable

Adds CONFIG_ARM_KERNMEM_PERMS to separate the kernel memory regions into section-sized areas that can have different permisions.
Performs
the NX permission changes during free_initmem, so that init
memory can be
reclaimed.

This uses section size instead of PMD size to reduce memory lost to padding on non-LPAE systems.

Based on work by Brad Spengler, Larry Bassel, and Laura Abbott.

Signed-off-by Kees Cook<[email protected]>

Tested-by Laura Abbott<[email protected]>

Acked-by Nicolas Pitre<[email protected]>

Looks like kernel_x_start, kernel_x_end are calculated wrongly in LPAE case. kernel_x_start == 0x0000 0000
kernel_x_end == 0x0080 0000

but should be:
kernel_x_start == 0x0000 0008 0000 0000
kernel_x_end == 0x0000 0008 0080 0000

Below diff restores boot for me:

arch/arm/mm/mmu.c +2 -3

index cda7c40..4e6ef89 100644
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
 static void __init map_lowmem(void)
 {
        struct memblock_region *reg;
-       unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-       unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
+       phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
+       phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
 
        /* Map all the lowmem memory banks. */
        for_each_memblock(memory, reg) {
--

regards,
-grygorii

Hello,

Quoted 8 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Quoted 1 line

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

Best regards
Uwe

Quoted 13 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Quoted 8 lines

Quoted 1 line

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

Best regards
Uwe

Just see below if I enable debug earlyprintk

Uncompressing Linux... done, booting the kernel.

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.18.0-11757-gd790be3 (a0868495 at ares-ubuntu)
(gcc version 4.7.3 20130226 (prerelease) (crosstool-NG
linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 SMP PREEMPT
Fri Dec 19 15:53:47 EST 2014
[    0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7),
cr=30c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction
cache
[    0.000000] Machine model: Texas Instruments Keystone 2 Edison EVM
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Switching to high address space at 0x800000000
[    0.000000] WARNING: unsafe modification of in-place page tables -
tainting kernel
[    0.000000] cma: Reserved 16 MiB at 0x000000085f000000
[    0.000000] Forcing write-allocate cache policy for SMP
[    0.000000] Memory policy: Data cache writealloc

I am currently doing a git bisect to find the offending commit.

Quoted 43 lines · Murali Karicheri

Quoted 13 lines · Uwe Kleine-K?nig

Hello,

Quoted 9 lines · Murali Karicheri

I have pulled the latest master from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git and tried booting on keystone k2hk and k2e EVM. The boot hangs with following log. Has anyone seen this? Keystone is an ARM v7 cortex A15 SMP platform. I am assuming master branch is broken for ARM v7 and someone is working to address this. v3.18 booted up fine on my EVM.

Quoted 8 lines

Quoted 1 line

Any idea?

You forgot to attach the log?! So no, I don't have any idea. Did you bisect?

Best regards
Uwe

Just see below if I enable debug earlyprintk

Uncompressing Linux... done, booting the kernel.

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.18.0-11757-gd790be3 (a0868495 at ares-ubuntu)
(gcc version 4.7.3 20130226 (prerelease) (crosstool-NG
linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 SMP PREEMPT
Fri Dec 19 15:53:47 EST 2014
[    0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7),
cr=30c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction
cache
[    0.000000] Machine model: Texas Instruments Keystone 2 Edison EVM
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Switching to high address space at 0x800000000
[    0.000000] WARNING: unsafe modification of in-place page tables -
tainting kernel
[    0.000000] cma: Reserved 16 MiB at 0x000000085f000000
[    0.000000] Forcing write-allocate cache policy for SMP
[    0.000000] Memory policy: Data cache writealloc

Quoted 2 lines

I am currently doing a git bisect to find the offending commit.

Does not look like few other TI A15 platforms are impacted by this.

branch: master e589c9e Merge branch 'x86-apic-for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
defconfig: omap2plus_defconfig
gcc: arm-linux-gnueabi-gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3 AM5728 (Dual A15):
1: BeagleBoard-X15(am57xx-evm): BOOT: PASS: http://slexy.org/raw/s21IM6bagp
DRA72x (Single A15):
2: dra72x-evm: BOOT: PASS: http://slexy.org/raw/s212Gk53mv
DRA74x (Dual A15):
3: dra7xx-evm: BOOT: PASS: http://slexy.org/raw/s21C5oTez8
OMAP5432 (Dual A15):
4: omap5-evm: BOOT: PASS: http://slexy.org/raw/s20PMK1WGR
TOTAL = 4 boards, Booted Boards = 4, No Boot boards = 0

---
Regards,
Nishanth Menon