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SubjectRe: VM: killing process amavis
On Wed, 13 Aug 2003, Hugh Dickins wrote:

> It really would be worth giving memtest86 a good long run.
>
> 02000000 looks very much like a single-bit memory error,
> and swap_free is exactly where such errors often show up.

I had the same problem before on the previous server. Running memtest for
19 days didn't showed any memory problems.

After replacing the motherboard cpu and ram, now I have the same problem.

Previous motherboard:
swap_free: Unused swap offset entry 00000100

Apr 26 09:40:05 rosdorff kernel: kernel BUG at dcache.c:345!
Apr 26 09:40:05 rosdorff kernel: invalid operand: 0000
Apr 26 09:40:05 rosdorff kernel: CPU: 0
Apr 26 09:40:05 rosdorff kernel: EIP: 0010:[<c0141764>] Not tainted
Apr 26 09:40:05 rosdorff kernel: EFLAGS: 00010206
Apr 26 09:40:05 rosdorff kernel: eax: 00000100 ebx: c17a8958 ecx: c1127f84 edx: c17a89d8
Apr 26 09:40:05 rosdorff kernel: esi: c17a8940 edi: 0000064d ebp: 00000113 esp: c1147f20
Apr 26 09:40:05 rosdorff kernel: ds: 0018 es: 0018 ss: 0018
Apr 26 09:40:05 rosdorff kernel: Process kswapd (pid: 4, stackpage=c1147000)

May 11 14:40:05 rosdorff kernel: kernel BUG at dcache.c:345!
May 11 14:40:05 rosdorff kernel: invalid operand: 0000
May 11 14:40:05 rosdorff kernel: CPU: 0
May 11 14:40:05 rosdorff kernel: EIP: 0010:[<c0141b84>] Not tainted
May 11 14:40:05 rosdorff kernel: EFLAGS: 00010206
May 11 14:40:05 rosdorff kernel: eax: 00000100 ebx: c17a8958 ecx: c1127f84 edx: c4d2a6d8
May 11 14:40:05 rosdorff kernel: esi: c17a8940 edi: 000011aa ebp: 0000021b esp: c114bf20
May 11 14:40:05 rosdorff kernel: ds: 0018 es: 0018 ss: 0018
May 11 14:40:05 rosdorff kernel: Process kswapd (pid: 4, stackpage=c114b000)

Jun 18 05:00:06 rosdorff kernel: kernel BUG at dcache.c:345!
Jun 18 05:00:06 rosdorff kernel: invalid operand: 0000
Jun 18 05:00:06 rosdorff kernel: CPU: 0
Jun 18 05:00:06 rosdorff kernel: EIP: 0010:[<c0141264>] Not tainted
Jun 18 05:00:06 rosdorff kernel: EFLAGS: 00010206
Jun 18 05:00:06 rosdorff kernel: eax: 00000100 ebx: c17a8958 ecx: c110ff84 edx: c17a89d8
Jun 18 05:00:06 rosdorff kernel: esi: c17a8940 edi: 000019c1 ebp: 00000393 esp: c1163f20
Jun 18 05:00:06 rosdorff kernel: ds: 0018 es: 0018 ss: 0018
Jun 18 05:00:06 rosdorff kernel: Process kswapd (pid: 4, stackpage=c1163000)


Current motherboard:
Jul 8 08:31:53 rosdorff kernel: memory.c:100: bad pmd 02000000

Jul 15 04:05:16 rosdorff kernel: Unable to handle kernel paging request at virtual address 02000000
Jul 15 04:05:16 rosdorff kernel: printing eip:
Jul 15 04:05:16 rosdorff kernel: c0131614
Jul 15 04:05:16 rosdorff kernel: *pde = 00000000
Jul 15 04:05:16 rosdorff kernel: Oops: 0002
Jul 15 04:05:16 rosdorff kernel: CPU: 0
Jul 15 04:05:16 rosdorff kernel: EIP: 0010:[<c0131614>] Not tainted
Jul 15 04:05:16 rosdorff kernel: EFLAGS: 00010256
Jul 15 04:05:16 rosdorff kernel: eax: 00000000 ebx: c36cf3e0 ecx: c36cf3e0 edx: 02000000
Jul 15 04:05:16 rosdorff kernel: esi: c36cf3e0 edi: c36cf3e0 ebp: c11b5970 esp: c136df00
Jul 15 04:05:16 rosdorff kernel: ds: 0018 es: 0018 ss: 0018
Jul 15 04:05:16 rosdorff kernel: Process kswapd (pid: 4, stackpage=c136d000)

Aug 13 10:12:51 rosdorff kernel: VM: killing process amavis
Aug 13 10:12:51 rosdorff kernel: swap_free: Unused swap offset entry 02000000


So the problem moved from 00000100 to 02000000

The networkcards and the 3ware raid controler moved form the old to the
new box. Could one of them be the problem?

I am running out of options.


TIA,
Coen Rosdorff

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