Public bug reported:
After installing the netboot image for omap, I went to remove the SD
card to reflash of further testing. This cause the running system to
oops, even though the root filesystem was on a usb sata drive and the SD
drive was not mounted.
>From syslog:
Mar 29 12:34:39 ubuntu kernel: [ 263.356964] Unable to handle kernel NULL
pointer dereference at virtual address 00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.357299] pgd = c0004000
Mar 29 12:34:39 ubuntu kernel: [ 263.357391] [00000000] *pgd=00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.357543] Internal error: Oops: 80000007
[#1]
Mar 29 12:34:39 ubuntu kernel: [ 263.357727] Modules linked in: joydev
smsc95xx usbhid usbnet hid twl4030_madc_hwmon omap_wdt snd_soc_twl4030
snd_soc_core snd_pcm snd_timer snd soundcore twl4030_madc twl4030_pwrbutton
snd_page_alloc spi_omap2_mcspi gpio_keys leds_gpio usb_storage uas
Mar 29 12:34:39 ubuntu kernel: [ 263.358795] CPU: 0 Not tainted
(3.2.0-20-omap #33-Ubuntu)
Mar 29 12:34:39 ubuntu kernel: [ 263.359008] PC is at 0x0
Mar 29 12:34:39 ubuntu kernel: [ 263.359130] LR is at
handle_nested_irq+0x6c/0xb0
Mar 29 12:34:39 ubuntu kernel: [ 263.359283] pc : [<00000000>] lr :
[<c0096c5c>] psr: 400f0013
Mar 29 12:34:39 ubuntu kernel: [ 263.359313] sp : df4f3f50 ip : c04b59c0 fp
: 00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.359680] r10: c071c940 r9 : 00000000 r8
: 00000001
Mar 29 12:34:39 ubuntu kernel: [ 263.359863] r7 : 00000000 r6 : c06f8048 r5
: 00000180 r4 : c0726dd8
Mar 29 12:34:39 ubuntu kernel: [ 263.360107] r3 : 00000000 r2 : dee11580 r1
: dee12ac0 r0 : 00000180
Mar 29 12:34:39 ubuntu kernel: [ 263.360321] Flags: nZcv IRQs on FIQs on
Mode SVC_32 ISA ARM Segment kernel
Mar 29 12:34:39 ubuntu kernel: [ 263.360595] Control: 10c5387d Table:
9d858019 DAC: 00000015
Mar 29 12:34:39 ubuntu kernel: [ 263.360778] Process irq/7-TWL4030-P (pid: 21,
stack limit = 0xdf4f22e8)
Mar 29 12:34:39 ubuntu kernel: [ 263.361022] Stack: (0xdf4f3f50 to 0xdf4f4000)
Mar 29 12:34:39 ubuntu kernel: [ 263.361175] 3f40:
00000012 c04e4b48 df4f4100 c02ea164
Mar 29 12:34:39 ubuntu kernel: [ 263.361450] 3f60: 00000001 2800223c c07266d8
00000170 00000001 c071c8e8 c06f8980 c0096c5c
Mar 29 12:34:39 ubuntu kernel: [ 263.361755] 3f80: 00000001 00000170 df4f2000
c02ea0ac 00000000 0171c940 df4d1dc0 c00956fc
Mar 29 12:34:39 ubuntu kernel: [ 263.362060] 3fa0: 00000013 c071c944 00000000
df43dcf0 df4d1dc0 c00955fc 00000013 00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.362335] 3fc0: 00000000 00000000 00000000
c0062130 00000000 00000000 df4d1dc0 00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.362609] 3fe0: df4f3fe0 df4f3fe0 df43dcf0
c00620b0 c0013d60 c0013d60 00000000 00000000
Mar 29 12:34:39 ubuntu kernel: [ 263.362915] [<c0096c5c>]
(handle_nested_irq+0x6c/0xb0) from [<c02ea164>] (handle_twl4030_sih+0x90/0xec)
Mar 29 12:34:39 ubuntu kernel: [ 263.363250] [<c02ea164>]
(handle_twl4030_sih+0x90/0xec) from [<c0096c5c>] (handle_nested_irq+0x6c/0xb0)
Mar 29 12:34:39 ubuntu kernel: [ 263.363616] [<c0096c5c>]
(handle_nested_irq+0x6c/0xb0) from [<c02ea0ac>] (handle_twl4030_pih+0x60/0x88)
Mar 29 12:34:39 ubuntu kernel: [ 263.363922] [<c02ea0ac>]
(handle_twl4030_pih+0x60/0x88) from [<c00956fc>] (irq_thread+0x100/0x1b0)
Mar 29 12:34:39 ubuntu kernel: [ 263.364257] [<c00956fc>]
(irq_thread+0x100/0x1b0) from [<c0062130>] (kthread+0x80/0x88)
Mar 29 12:34:39 ubuntu kernel: [ 263.364562] [<c0062130>] (kthread+0x80/0x88)
from [<c0013d60>] (kernel_thread_exit+0x0/0x8)
Mar 29 12:34:39 ubuntu kernel: [ 263.364837] Code: bad PC value
Mar 29 12:34:39 ubuntu kernel: [ 263.365020] ---[ end trace 91d6812f67b436f7
]---
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-20-omap 3.2.0-20.33
ProcVersionSignature: User Name 3.2.0-20.33-omap 3.2.12
Uname: Linux 3.2.0-20-omap armv7l
AcpiTables:
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 1.95-0ubuntu1
Architecture: armel
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Date: Thu Mar 29 12:42:41 2012
HibernationDevice: RESUME=UUID=8cbb8429-9a98-41e5-ba7e-32aeac38510f
IwConfig: Error: [Errno 2] No such file or directory
PciMultimedia:
ProcEnviron:
SHELL=/bin/bash
TERM=vt102
LANG=en_US.UTF-8
LANGUAGE=en_US:
ProcFB:
0 omapfb
1 omapfb
2 omapfb
ProcKernelCmdLine: root=UUID=e2fd79f0-6b47-4865-b7cc-70d26d009ed1 ro quiet
splash
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: apport-bug armel precise
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https://bugs.launchpad.net/bugs/968554
Title:
Kernel oops on omap when removing SD, even though it wasn't mounted
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