linux-kernel - Re: 2.6.17.2 kernel bug?

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Date:	Mon, 24 Jul 2006 10:36:59 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Greg Scott" <GregScott@...rasupportetc.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.17.2 kernel bug?

Hi Greg,

On 7/24/06, Greg Scott <GregScott@...rasupportetc.com> wrote:
> This may be a hardware problem but I thought I should tell somebody.
> It's running on a Dell Optiplex GX110, p3 733mhz, 256MB.

Have you ran memtest on this machine?

On 7/24/06, Greg Scott <GregScott@...rasupportetc.com> wrote:
> Jul 23 16:26:37 lakeville-fw kernel: ------------[ cut here
> ]------------
> Jul 23 16:26:37 lakeville-fw kernel: kernel BUG at mm/swapfile.c:352!
> Jul 23 16:26:37 lakeville-fw kernel: invalid opcode: 0000 [#1]

[snip]

> Jul 23 16:26:37 lakeville-fw kernel: EIP is at
> remove_exclusive_swap_page+0xb/0xe3

[snip]

> Jul 23 16:26:37 lakeville-fw kernel: Call Trace:
> Jul 23 16:26:37 lakeville-fw kernel:  <c0149109>
> free_page_and_swap_cache+0x1b/0x2a  <c0142645> unmap_vmas+0x297/0x490
> Jul 23 16:26:37 lakeville-fw kernel:  <c0144ddd> exit_mmap+0x50/0xbc
> <c011814e> mmput+0x1f/0x76
> Jul 23 16:26:37 lakeville-fw kernel:  <c011c5d7> do_exit+0x18a/0x6ca
> <c011cb84> sys_exit_group+0x0/0xd

The page was locked before entering remove_exclusive_swap_page() in
free_swap_cache() so fault RAM seems more likely.

                                               Pekka
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