Hi All,
We've got a weird problem with some of our servers in that every down and
again they just come to a grinding halt. The load average goes through the
roof then they just die. We are running Redhat 7.2 and a mixture of kernels
but mainly the redhat kernel 2.4.9-31. On each of the servers the following
is error is found in the logs some time before the crashes happen.
Does anyone have any idea what this means and if it could cause a server to
crash?
Jun 5 14:35:02 server kernel: printing eip:
Jun 5 14:35:02 server kernel: c01583a3
Jun 5 14:35:02 server kernel: *pde = 00000000
Jun 5 14:35:02 server kernel: Oops: 0002
Jun 5 14:35:02 server kernel: Kernel 2.4.9-31smp
Jun 5 14:35:02 server kernel: CPU: 1
Jun 5 14:35:02 server kernel: EIP: 0010:[prune_dqcache+115/192] Not
tainted
Jun 5 14:35:02 server kernel: EIP: 0010:[<c01583a3>] Not tainted
Jun 5 14:35:02 server kernel: EFLAGS: 00010202
Jun 5 14:35:02 server kernel: EIP is at prune_dqcache [kernel] 0x73
Jun 5 14:35:02 server kernel: eax: 00000000 ebx: c8214e60 ecx:
c8214e68 edx: 00000000
Jun 5 14:35:02 server kernel: esi: 00000001 edi: 00000000 ebp:
000000d2 esp: d7089d90
Jun 5 14:35:02 server kernel: ds: 0018 es: 0018 ss: 0018
Jun 5 14:35:02 server kernel: Process php (pid: 5683, stackpage=d7089000)
Jun 5 14:35:02 server kernel: Stack: ca57e000 c1c85470 d7088000 000000d2
0000027e 000000d2 c0158405 00000003
Jun 5 14:35:02 server kernel: c013605b 00000006 000000d2 c1c85470
000000d2 c1c8537c 000000d2 000000d2
Jun 5 14:35:02 server kernel: 00000000 d7088000 00000001 c01361c8
000000d2 00000001 d7088000 c0136eb1
Jun 5 14:35:02 server kernel: Call Trace: [shrink_dqcache_memory+21/48]
shrink_dqcache_memory [kernel] 0x15
Jun 5 14:35:03 server kernel: Call Trace: [<c0158405>]
shrink_dqcache_memory [kernel] 0x15
Jun 5 14:35:03 server kernel: [do_try_to_free_pages+43/80]
do_try_to_free_pages [kernel] 0x2b
Jun 5 14:35:03 server kernel: [<c013605b>] do_try_to_free_pages [kernel]
0x2b
Jun 5 14:35:03 server kernel: [try_to_free_pages+40/64] try_to_free_pages
[kernel] 0x28
Jun 5 14:35:03 server kernel: [<c01361c8>] try_to_free_pages [kernel] 0x28
Jun 5 14:35:03 server kernel: [_wrapped_alloc_pages+449/624]
_wrapped_alloc_pages [kernel] 0x1c1
Jun 5 14:35:03 server kernel: [<c0136eb1>] _wrapped_alloc_pages [kernel]
0x1c1
Jun 5 14:35:03 server kernel: [__alloc_pages+15/160] __alloc_pages
[kernel] 0xf
Jun 5 14:35:03 server kernel: [<c0136f6f>] __alloc_pages [kernel] 0xf
Jun 5 14:35:03 server kernel: [shmem_getpage_locked+711/1008]
shmem_getpage_locked [kernel] 0x2c7
Jun 5 14:35:03 server kernel: [<c013a067>] shmem_getpage_locked [kernel]
0x2c7
Jun 5 14:35:03 server kernel: [shmem_getpage+90/256] shmem_getpage
[kernel] 0x5a
Jun 5 14:35:03 server kernel: [<c013a1ea>] shmem_getpage [kernel] 0x5a
Jun 5 14:35:03 server kernel: [shmem_nopage+46/352] shmem_nopage [kernel]
0x2e
Jun 5 14:35:03 server kernel: [<c013a2be>] shmem_nopage [kernel] 0x2e
Jun 5 14:35:03 server kernel: [do_no_page+125/288] do_no_page [kernel]
0x7d
Jun 5 14:35:03 server kernel: [<c012b28d>] do_no_page [kernel] 0x7d
Jun 5 14:35:03 server kernel: [handle_mm_fault+107/224] handle_mm_fault
[kernel] 0x6b
Jun 5 14:35:03 server kernel: [<c012b39b>] handle_mm_fault [kernel] 0x6b
Jun 5 14:35:03 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Jun 5 14:35:03 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Jun 5 14:35:03 server kernel: [call_apic_timer_interrupt+5/16]
call_apic_timer_interrupt [kernel] 0x5
Jun 5 14:35:03 server kernel: [<c022f39d>] call_apic_timer_interrupt
[kernel] 0x5
Jun 5 14:35:04 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Jun 5 14:35:04 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Jun 5 14:35:04 server kernel: [do_page_fault+422/1216] do_page_fault
[kernel] 0x1a6
Jun 5 14:35:04 server kernel: [<c0117886>] do_page_fault [kernel] 0x1a6
Jun 5 14:35:04 server xinetd: xinetd startup succeeded
Jun 5 14:35:04 server kernel: [fcntl_setlk+449/464] fcntl_setlk [kernel]
0x1c1
Jun 5 14:35:04 server kernel: [<c0150651>] fcntl_setlk [kernel] 0x1c1
Jun 5 14:35:04 server kernel: [call_reschedule_interrupt+5/11]
call_reschedule_interrupt [kernel] 0x5
Jun 5 14:35:04 server kernel: [<c022f316>] call_reschedule_interrupt
[kernel] 0x5
Jun 5 14:35:04 server kernel: [__switch_to+61/256] __switch_to [kernel]
0x3d
Jun 5 14:35:04 server kernel: [<c0105b5d>] __switch_to [kernel] 0x3d
Jun 5 14:35:04 server kernel: [schedule+1020/1600] schedule [kernel] 0x3fc
Jun 5 14:35:04 server kernel: [<c011877c>] schedule [kernel] 0x3fc
Jun 5 14:35:04 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Jun 5 14:35:04 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Jun 5 14:35:04 server kernel: [error_code+56/64] error_code [kernel] 0x38
Jun 5 14:35:04 server kernel: [<c0107298>] error_code [kernel] 0x38
Jun 5 14:35:04 server kernel:
Jun 5 14:35:04 server kernel:
Jun 5 14:35:04 server kernel: Code: 89 50 04 89 02 c7 41 04 00 00 00 00 c7
43 08 00 00 00 00 8b
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