swap_free: swap-space map bad (entry 00000100)

Samuel Dupas (samuel@dupas.com)
Fri, 27 Jul 2001 11:13:13 +0100


Hi every body,

I have theses lines in /var/log/messages

Is it a kernel problem, a hardware problem ?

On the archives on mailling lists I found nothing interresting (I mean,
only the same question but no response)
Please help me.

It's on a Cobalt Raq4, 512 Mb RAM, kernel 2.2.16C27_III

The machine write theses lines for a week, but the system doesn't work
like usual (It's very slow).

Thanks for any advice.

(I'm not subscribed to the list, can you add my address in CC please ?)

/var/log/messages
--------------------------------------------------------------------
Jul 25 02:05:12 euro kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000114
Jul 25 02:05:12 euro kernel: current->tss.cr3 = 0f0be000, %%cr3 = 0f0be000

Jul 25 02:05:12 euro kernel: *pde = 00000000
Jul 25 02:05:12 euro kernel: Oops: 0000
Jul 25 02:05:12 euro kernel: CPU: 0
Jul 25 02:05:12 euro kernel: EIP: 0010:[try_to_free_buffers+18/136]
Jul 25 02:05:12 euro kernel: EFLAGS: 00010206
Jul 25 02:05:12 euro kernel: eax: 00000100 ebx: c055e360 ecx: 0001207c
edx: 00040000
Jul 25 02:05:12 euro kernel: esi: 00000100 edi: 00000100 ebp: c055e360
esp: da98be90
Jul 25 02:05:12 euro kernel: ds: 0018 es: 0018 ss: 0018
Jul 25 02:05:12 euro kernel: Process rsync (pid: 28186, process nr: 12,
stackpage=da98b000)
Jul 25 02:05:12 euro kernel: Stack: 00000006 00000013 c011c146 c055e360
da98a000 00000005 c0120faa 00000006
Jul 25 02:05:12 euro kernel: 00000013 da98a000 00000013 00000000
00004000 00000001 00000008 c0121110
Jul 25 02:05:12 euro kernel: 00000013 c01218d2 00000013 00003000
db2c6bb0 00000000 00004000 00490ad4
Jul 25 02:05:12 euro kernel: Call Trace: [shrink_mmap+218/304]
[do_try_to_free_pages+78/232] [try_to_free_pages+20/24]
[__get_free_pages+122/812] [try_
to_read_ahead+254/276] [try_to_read_ahead+47/276]
[do_generic_file_read+750/1508]
Jul 25 02:05:12 euro kernel: [generic_file_read+99/124]
[file_read_actor+0/80] [sys_read+174/196] [system_call+52/56]
Jul 25 02:05:12 euro kernel: Code: 8b 76 14 83 78 20 00 75 06 f6 40 18 46
74 0f 6a 00 e8 70 01
Jul 25 04:02:44 euro kernel: swap_duplicate at c01222f4: entry 00000100,
unused page
Jul 25 04:02:44 euro kernel: VM: killing process httpd
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_duplicate at c01222f4: entry 00000100,
unused page
Jul 25 04:02:44 euro kernel: VM: killing process httpd
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_duplicate at c01222f4: entry 00000100,
unused page
Jul 25 04:02:44 euro kernel: VM: killing process httpd
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_free: swap-space map bad (entry
00000100)
Jul 25 04:02:44 euro kernel: swap_duplicate at c01222f4: entry 00000100,
unused page
------------------------------------------------------------------------------------

Samuel Dupas
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