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Re: Kernel Memory corruption error messages



On 2009-04-16, Kushal Koolwal <kushalkoolwal@hotmail.com> wrote:
>
> Has any lately seen the following memory error messages (from dmesg) after resuming from Suspend to Ram (S3). I am using Debian Lenny with 2.6.28 kernel.
>
> ************************************************************************
> [  179.822885] Corrupted low memory at c0007ffc (7ffc phys) = 82ea0000
> [  179.834294] ------------[ cut here ]------------
> [  179.834310] WARNING: at arch/x86/kernel/setup.c:718 check_for_bios_corruption+0xa0/0xaa()
> [  179.834326] Memory corruption detected in low memory
> [  179.845435] Modules linked in: snd_pcm_oss snd_mixer_oss dme1737 hwmon_vid lm90 snd_cs5535audio snd_ac97_codec pcspkr ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc evdev
> [  179.845505] Pid: 0, comm: swapper Not tainted 2.6.28-1-epm15-test1 #1
> [  179.845519] Call Trace:
> [  179.845904]  [] warn_slowpath+0x5a/0x78
> [  179.845927]  [] handle_fasteoi_irq+0x8a/0xbc
> [  179.845947]  [] do_IRQ+0x5a/0x6c
> [  179.845966]  [] common_interrupt+0x23/0x28
> [  179.845988]  [] vprintk+0x22b/0x24a
> [  179.846008]  [] vprintk+0x240/0x24a
> [  179.846029]  [] read_tsc+0x6/0x22
> [  179.846053]  [] getnstimeofday+0x4a/0xc5
> [  179.846078]  [] mfgpt_start_timer+0x4b/0x5b
> [  179.846103]  [] printk+0xe/0x11
> [  179.846124]  [] check_for_bios_corruption+0xa0/0xaa
> [  179.846146]  [] periodic_check_for_corruption+0x0/0x28
> [  179.846169]  [] periodic_check_for_corruption+0x5/0x28
> [  179.846194]  [] run_timer_softirq+0x12a/0x18e
> [  179.846214]  [] __do_softirq+0x4a/0xbc
> [  179.846232]  [] do_softirq+0x22/0x26
> [  179.846249]  [] irq_exit+0x25/0x5f
> [  179.846267]  [] do_IRQ+0x5a/0x6c
> [  179.846285]  [] common_interrupt+0x23/0x28
> [  179.846308]  [] default_idle+0x25/0x38
> [  179.846326]  [] cpu_idle+0x41/0x6f
> [  179.846339] ---[ end trace 5f499d87af471ce2 ]---
> debian:~# 
> ************************************************************************
> The system does seem to work fine even after the kernel panic but I am little bit nervous that in the long run it might hurt.
>
> Also does anybody know how to debug this issue like -
> - Is it a module that is causing the problem or
It seems the sound related modules cause the problem, like snd_pcm_oss.
Try not to load them at startup, and then you load them by hand one bye one,
and you can find which module causes this issue.

> - Is it a core kernel issue or
I don't thinks so.
> - A Hardware/BIOS issue.
Only if you upgrade your BIOS recently.
>
> I also filed a bug report few days back:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=523964
>
> Kushal Koolwal
>
> I do blog at http://blogs.koolwal.net/
> _________________________________________________________________
> Windows Live™: Life without walls.
> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1b_explore_042009
>


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