Messages in this thread |  | | Date | Mon, 9 Sep 2002 13:34:59 -0500 (CDT) | From | Steven Timm <> | Subject | "unable to handle kernel paging request at virtual address ....." (fwd) |
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This error message is occurring with kernel 2.4.9-31smp, particularly on older hardware. I am seeing the following kernel panic with regularity:
Unable to handle kernel paging request at virtual address 0a1a77da printing eip: 0a1a77da *pde = 00000000 Oops: 0000 Kernel 2.4.9-31smp CPU: 0 EIP: 0010:[<0a1a77da>] Tainted: P EFLAGS: 00010202 EIP is at Using_Versions [] 0xa1a77d9 eax: 0a1a77da ebx: d112b040 ecx: d112b050 edx: e0e1e183 esi: f74f62e0 edi: e0e1e183 ebp: fffffff6 esp: c22dbf50 ds: 0018 es: 0018 ss: 0018 Process kswapd (pid: 5, stackpage=c22db000) Stack: c0153d4b d112b040 c211c3a0 c02de878 00000000 c22da000 f74f62f8 f74f62e0 d112b040 c01515eb d112b040 d112b040 c22da000 00000000 c1deb944 00000000 c1eb1250 c1deb944 00000000 c0135c45 00000000 00036a22 000000c0 000000c0 Call Trace: [<c0153d4b>] iput [kernel] 0x3b [<c01515eb>] prune_dcache [kernel] 0x10b EIP is at Using_Versions [] 0xa1a77d9 eax: 0a1a77da ebx: d112b040 ecx: d112b050 edx: e0e1e183 esi: f74f62e0 edi: e0e1e183 ebp: fffffff6 esp: c22dbf50 ds: 0018 es: 0018 ss: 0018 Process kswapd (pid: 5, stackpage=c22db000) Stack: c0153d4b d112b040 c211c3a0 c02de878 00000000 c22da000 f74f62f8 f74f62e0 d112b040 c01515eb d112b040 d112b040 c22da000 00000000 c1deb944 00000000 c1eb1250 c1deb944 00000000 c0135c45 00000000 00036a22 000000c0 000000c0 Call Trace: [<c0153d4b>] iput [kernel] 0x3b [<c01515eb>] prune_dcache [kernel] 0x10b [<c0135c45>] page_launder [kernel] 0x955 [<c0151a11>] shrink_dcache_memory [kernel] 0x21 [<c013604b>] do_try_to_free_pages [kernel] 0x1b [<c01360d5>] kswapd [kernel] 0x55 [<c0105000>] stext [kernel] 0x0 [<c0105866>] kernel_thread [kernel] 0x26 [<c0136080>] kswapd [kernel] 0x0
Code: Bad EIP value. ------------------------------------------------------------------
The Google searches I have done up until now reveal that many people have seen this problem but nobody has found a solution as yet. When the kernel panic happens, the machine does not crash. It stays up, but then kswapd shows as <defunct> in the ps listing.
We have seen this problem two or three times per node on the 20 nodes in question. These nodes are doing a number of swaps usually at the time the error happens.
Any idea what might be going on?
Steve Timm
------------------------------------------------------------------ Steven C. Timm (630) 840-8525 timm@fnal.gov http://home.fnal.gov/~timm/ Fermilab Computing Division/Operating Systems Support Scientific Computing Support Group--Computing Farms Operations
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