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#1 2011-03-14 00:43:06

vkumar
Member
Registered: 2008-10-06
Posts: 166

Kernel panics on hibernate resume (null pointer deref)

I've been having sporadic kernel panics after I resume from hibernate for months, now. They seem to happen at random. I filed a bug on Arch's tracker a while back, but it didn't receive any attention (probably because the log files were too big). Is anyone else having this issue?

Linux vk 2.6.37-ARCH #1 SMP PREEMPT Tue Mar 8 08:34:35 CET 2011 x86_64 Intel(R) Core(TM)2 Duo CPU T6400 @ 2.00GHz GenuineIntel GNU/Linux

Mar 13 20:25:36 vk kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000039
Mar 13 20:25:36 vk kernel: IP: [<ffffffff811a0f0b>] sysfs_lookup+0x4b/0x120
Mar 13 20:25:36 vk kernel: PGD 13974a067 PUD 137d3d067 PMD 0 
Mar 13 20:25:36 vk kernel: Oops: 0000 [#1] PREEMPT SMP
...
Mar 13 20:25:36 vk kernel: Call Trace:
Mar 13 20:25:36 vk kernel: [<ffffffff81140487>] d_alloc_and_lookup+0x47/0x90
Mar 13 20:25:36 vk kernel: [<ffffffff8114b6f0>] ? d_lookup+0x30/0x60
Mar 13 20:25:36 vk kernel: [<ffffffff811405e8>] do_lookup+0x118/0x170
Mar 13 20:25:36 vk kernel: [<ffffffff81142211>] link_path_walk+0x121/0xb20
Mar 13 20:25:36 vk kernel: [<ffffffff81143f3c>] do_filp_open+0x26c/0x690
Mar 13 20:25:36 vk kernel: [<ffffffff8114f744>] ? alloc_fd+0xf4/0x150
Mar 13 20:25:36 vk kernel: [<ffffffff811fe09d>] ? strncpy_from_user+0x2d/0x40
Mar 13 20:25:36 vk kernel: [<ffffffff81135064>] do_sys_open+0x64/0x110
Mar 13 20:25:36 vk kernel: [<ffffffff8100e17d>] ? math_state_restore+0x3d/0x60
Mar 13 20:25:36 vk kernel: [<ffffffff8113512b>] sys_open+0x1b/0x20
Mar 13 20:25:36 vk kernel: [<ffffffff8100bed2>] system_call_fastpath+0x16/0x1b
Mar 13 20:25:36 vk kernel: Code: c7 20 95 56 81 48 8b 46 28 48 89 f3 49 c7 c6 fe ff ff ff 4c 8b a8 98 00 00 00 e8 e1 53 20 00 4d 8b a4 24 20 01 00 00 48 8b 53 38 <41> 0f b6 4d 39 4c 89 ef 49 8b 84 24 a8 02 00 00 48 8b 34 c8 e8 
Mar 13 20:25:36 vk kernel: RIP  [<ffffffff811a0f0b>] sysfs_lookup+0x4b/0x120

edit:
For completeness, here's the old bug report: https://bugs.archlinux.org/task/22139

Last edited by vkumar (2011-03-14 00:45:02)


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#2 2011-03-21 11:35:58

tvale
Member
From: Portugal
Registered: 2008-12-11
Posts: 175

Re: Kernel panics on hibernate resume (null pointer deref)

I'm also experiencing random panic after hibernation, only on my laptop. Usually the process triggering it is pacman.
Where do the panics get logged, by the way? Would like to explore this further.

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#3 2011-03-31 20:27:13

vkumar
Member
Registered: 2008-10-06
Posts: 166

Re: Kernel panics on hibernate resume (null pointer deref)

The most useful information is in /var/log/kernel.log
(Same here, it's just a laptop issue for me.)


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