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SubjectServer Crash
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Hi All,

Is anyone able to tell me what the below error means. This has been
happening on a few of our servers every once and a while. Where are running
Redhat 7.2 with 2.4.9-31smp kernel. After this error occurs the server is
unusable and requires a restart. Posted this problem here a while ago and
tried upgrading the kernal and quota packages but the issue still seems to
occur

Aug 6 08:15:00 server kernel: VFS: dqput: trying to free free dquot
Aug 6 08:15:00 server kernel: VFS: device 08:05, dquot of group 11001530
Aug 6 08:15:00 server kernel: remove_free_dquot: dquot not on the free
list??
Aug 6 08:15:00 server kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000004
Aug 6 08:15:00 server kernel: printing eip:
Aug 6 08:15:00 server kernel: c01583a3
Aug 6 08:15:00 server kernel: *pde = 00000000
Aug 6 08:15:00 server kernel: Oops: 0002
Aug 6 08:15:00 server kernel: Kernel 2.4.9-31smp
Aug 6 08:15:00 server kernel: CPU: 0
Aug 6 08:15:01 server kernel: EIP: 0010:[prune_dqcache+115/192] Not
tainted
Aug 6 08:15:01 server kernel: EIP: 0010:[<c01583a3>] Not tainted
Aug 6 08:15:01 server kernel: EFLAGS: 00010246
Aug 6 08:15:01 server xinetd: xinetd startup succeeded
Aug 6 08:15:01 server kernel: EIP is at prune_dqcache [kernel] 0x73
Aug 6 08:15:01 server kernel: eax: 00000000 ebx: cc6d1960 ecx:
cc6d1968 edx: 00000000
Aug 6 08:15:01 server kernel: esi: 00000000 edi: 00000000 ebp:
000000d2 esp: d373bd90
Aug 6 08:15:01 server kernel: ds: 0018 es: 0018 ss: 0018
Aug 6 08:15:01 server kernel: Process php (pid: 28721, stackpage=d373b000)
Aug 6 08:15:01 server kernel: Stack: db5f9000 c1c85470 d373a000 000000d2
00000a21 000000d2 c0158405 00000002
Aug 6 08:15:01 server kernel: c013605b 00000006 000000d2 c1c85470
000000d2 c1c8537c 000000d2 000000d2
Aug 6 08:15:01 server kernel: 00000000 d373a000 00000001 c01361c8
000000d2 00000001 d373a000 c0136eb1
Aug 6 08:15:01 server kernel: Call Trace: [shrink_dqcache_memory+21/48]
shrink_dqcache_memory [kernel] 0x15
Aug 6 08:15:01 server kernel: Call Trace: [<c0158405>]
shrink_dqcache_memory [kernel] 0x15
Aug 6 08:15:01 server kernel: [do_try_to_free_pages+43/80]
do_try_to_free_pages [kernel] 0x2b
Aug 6 08:15:02 server kernel: [<c013605b>] do_try_to_free_pages [kernel]
0x2b
Aug 6 08:15:02 server kernel: [try_to_free_pages+40/64] try_to_free_pages
[kernel] 0x28
Aug 6 08:15:02 server kernel: [<c01361c8>] try_to_free_pages [kernel] 0x28
Aug 6 08:15:02 server kernel: [_wrapped_alloc_pages+449/624]
_wrapped_alloc_pages [kernel] 0x1c1
Aug 6 08:15:02 server kernel: [<c0136eb1>] _wrapped_alloc_pages [kernel]
0x1c1
Aug 6 08:15:02 server kernel: [__alloc_pages+15/160] __alloc_pages
[kernel] 0xf
Aug 6 08:15:02 server kernel: [<c0136f6f>] __alloc_pages [kernel] 0xf
Aug 6 08:15:02 server kernel: [shmem_getpage_locked+711/1008]
shmem_getpage_locked [kernel] 0x2c7
Aug 6 08:15:02 server kernel: [<c013a067>] shmem_getpage_locked [kernel]
0x2c7
Aug 6 08:15:02 server kernel: [shmem_getpage+90/256] shmem_getpage
[kernel] 0x5a
Aug 6 08:15:02 server kernel: [<c013a1ea>] shmem_getpage [kernel] 0x5a
Aug 6 08:15:02 server kernel: [shmem_nopage+46/352] shmem_nopage [kernel]
0x2e
Aug 6 08:15:02 server kernel: [<c013a2be>] shmem_nopage [kernel] 0x2e
Aug 6 08:15:02 server kernel: [do_no_page+125/288] do_no_page [kernel]
0x7d
Aug 6 08:15:02 server kernel: [<c012b28d>] do_no_page [kernel] 0x7d
Aug 6 08:15:02 server kernel: [handle_mm_fault+107/224] handle_mm_fault
[kernel] 0x6b
Aug 6 08:15:02 server kernel: [<c012b39b>] handle_mm_fault [kernel] 0x6b
Aug 6 08:15:02 server kernel:
[eepro100:__insmod_eepro100_O/lib/modules/2.4.9-31smp/kernel/drivers/+-1089158/96]
scsi_io_completion
_Rsmp_708d15eb [scsi_mod] 0x28a
Aug 6 08:15:02 server kernel: [<e080817a>]
scsi_io_completion_Rsmp_708d15eb [scsi_mod] 0x28a
Aug 6 08:15:03 server kernel: [call_do_IRQ+5/13] call_do_IRQ [kernel] 0x5
Aug 6 08:15:03 server kernel: [<c022ea10>] call_do_IRQ [kernel] 0x5
Aug 6 08:15:03 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Aug 6 08:15:03 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Aug 6 08:15:03 server kernel: [do_page_fault+422/1216] do_page_fault
[kernel] 0x1a6
Aug 6 08:15:03 server kernel: [<c0117886>] do_page_fault [kernel] 0x1a6
Aug 6 08:15:03 server kernel:
[eepro100:__insmod_eepro100_O/lib/modules/2.4.9-31smp/kernel/drivers/+-1117799/96]
scsi_do_cmd_Rsmp_8
0fdff72 [scsi_mod] 0x649
Aug 6 08:15:03 server kernel: [<e0801199>] scsi_do_cmd_Rsmp_80fdff72
[scsi_mod] 0x649
Aug 6 08:15:03 server kernel:
[eepro100:__insmod_eepro100_O/lib/modules/2.4.9-31smp/kernel/drivers/+-1118512/96]
scsi_do_cmd_Rsmp_8
0fdff72 [scsi_mod] 0x380
Aug 6 08:15:03 server kernel: [<e0800ed0>] scsi_do_cmd_Rsmp_80fdff72
[scsi_mod] 0x380
Aug 6 08:15:03 server kernel: [schedule+1020/1600] schedule [kernel] 0x3fc
Aug 6 08:15:03 server kernel: [<c011877c>] schedule [kernel] 0x3fc
Aug 6 08:15:03 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Aug 6 08:15:03 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Aug 6 08:15:03 server kernel: [error_code+56/64] error_code [kernel] 0x38
Aug 6 08:15:03 server kernel: [<c0107298>] error_code [kernel] 0x38
Aug 6 08:15:03 server kernel:
Aug 6 08:15:03 server kernel:
Aug 6 08:15:03 server kernel: Code: 89 50 04 89 02 c7 41 04 00 00 00 00 c7
43 08 00 00 00 00 8b
Aug 6 08:15:03 server kernel: remove_free_dquot: dquot not on the free
list??
Aug 6 08:15:03 server kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000004
Aug 6 08:15:03 server kernel: printing eip:
Aug 6 08:15:03 server kernel: c01583a3
Aug 6 08:15:03 server kernel: *pde = 00000000
Aug 6 08:15:03 server kernel: Oops: 0002
Aug 6 08:15:03 server kernel: Kernel 2.4.9-31smp
Aug 6 08:15:03 server kernel: CPU: 0
Aug 6 08:15:03 server kernel: EIP: 0010:[prune_dqcache+115/192] Not
tainted
Aug 6 08:15:03 server kernel: EIP: 0010:[<c01583a3>] Not tainted
Aug 6 08:15:03 server kernel: EFLAGS: 00010202
Aug 6 08:15:03 server kernel: EIP is at prune_dqcache [kernel] 0x73
Aug 6 08:15:03 server kernel: eax: 00000000 ebx: cc6d1960 ecx:
cc6d1968 edx: 00000000
Aug 6 08:15:03 server kernel: esi: 00000001 edi: 00000000 ebp:
000000d2 esp: d8b83cc8
Aug 6 08:15:03 server kernel: ds: 0018 es: 0018 ss: 0018
Aug 6 08:15:03 server kernel: Process xinetd (pid: 28761,
stackpage=d8b83000)
Aug 6 08:15:03 server kernel: Stack: 00000001 00000000 00000a30 c1c85470
00000a30 000000d2 c0158405 00000002
Aug 6 08:15:04 server kernel: c013605b 00000006 000000d2 c1c85470
000000d2 c1c8537c 000000d2 000000d2
Aug 6 08:15:04 server kernel: 00000000 d8b82000 00000001 c01361c8
000000d2 00000001 d8b82000 c0136eb1
Aug 6 08:15:04 server kernel: Call Trace: [shrink_dqcache_memory+21/48]
shrink_dqcache_memory [kernel] 0x15
Aug 6 08:15:04 server kernel: Call Trace: [<c0158405>]
shrink_dqcache_memory [kernel] 0x15
Aug 6 08:15:04 server kernel: [do_try_to_free_pages+43/80]
do_try_to_free_pages [kernel] 0x2b
Aug 6 08:15:04 server kernel: [<c013605b>] do_try_to_free_pages [kernel]
0x2b
Aug 6 08:15:04 server kernel: [try_to_free_pages+40/64] try_to_free_pages
[kernel] 0x28
Aug 6 08:15:04 server kernel: [<c01361c8>] try_to_free_pages [kernel] 0x28
Aug 6 08:15:04 server kernel: [_wrapped_alloc_pages+449/624]
_wrapped_alloc_pages [kernel] 0x1c1
Aug 6 08:15:04 server kernel: [<c0136eb1>] _wrapped_alloc_pages [kernel]
0x1c1
Aug 6 08:15:04 server kernel: [__alloc_pages+15/160] __alloc_pages
[kernel] 0xf
Aug 6 08:15:04 server kernel: [<c0136f6f>] __alloc_pages [kernel] 0xf
Aug 6 08:15:04 server kernel: [do_anonymous_page+62/272] do_anonymous_page
[kernel] 0x3e
Aug 6 08:15:04 server kernel: [<c012b13e>] do_anonymous_page [kernel] 0x3e
Aug 6 08:15:04 server kernel: [do_no_page+50/288] do_no_page [kernel] 0x32
Aug 6 08:15:04 server kernel: [<c012b242>] do_no_page [kernel] 0x32
Aug 6 08:15:04 server kernel: [handle_mm_fault+107/224] handle_mm_fault
[kernel] 0x6b
Aug 6 08:15:04 server kernel: [<c012b39b>] handle_mm_fault [kernel] 0x6b
Aug 6 08:15:04 server kernel: [dput+28/400] dput [kernel] 0x1c
Aug 6 08:15:04 server kernel: [<c015118c>] dput [kernel] 0x1c
Aug 6 08:15:04 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Aug 6 08:15:04 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Aug 6 08:15:04 server kernel: [do_page_fault+422/1216] do_page_fault
[kernel] 0x1a6
Aug 6 08:15:04 server kernel: [<c0117886>] do_page_fault [kernel] 0x1a6
Aug 6 08:15:04 server kernel: [filemap_nopage+186/1280] filemap_nopage
[kernel] 0xba
Aug 6 08:15:04 server kernel: [<c012f06a>] filemap_nopage [kernel] 0xba
Aug 6 08:15:04 server kernel: [do_no_page+125/288] do_no_page [kernel]
0x7d
Aug 6 08:15:04 server kernel: [<c012b28d>] do_no_page [kernel] 0x7d
Aug 6 08:15:04 server kernel: [do_page_fault+0/1216] do_page_fault
[kernel] 0x0
Aug 6 08:15:04 server kernel: [<c01176e0>] do_page_fault [kernel] 0x0
Aug 6 08:15:04 server kernel: [error_code+56/64] error_code [kernel] 0x38
Aug 6 08:15:04 server kernel: [<c0107298>] error_code [kernel] 0x38
Aug 6 08:15:05 server kernel: [ksoftirqd+232/272] ksoftirqd [kernel] 0xe8
Aug 6 08:15:05 server kernel: [<c0120018>] ksoftirqd [kernel] 0xe8
Aug 6 08:15:05 server kernel: [file_read_actor+128/256] file_read_actor
[kernel] 0x80
Aug 6 08:15:05 server kernel: [<c012ea60>] file_read_actor [kernel] 0x80
Aug 6 08:15:05 server kernel: [do_generic_file_read+643/1504]
do_generic_file_read [kernel] 0x283
Aug 6 08:15:05 server kernel: [<c012e683>] do_generic_file_read [kernel]
0x283
Aug 6 08:15:05 server kernel: [generic_file_read+100/128]
generic_file_read [kernel] 0x64
Aug 6 08:15:05 server kernel: [<c012eb44>] generic_file_read [kernel] 0x64
Aug 6 08:15:05 server kernel: [file_read_actor+0/256] file_read_actor
[kernel] 0x0
Aug 6 08:15:05 server kernel: [<c012e9e0>] file_read_actor [kernel] 0x0
Aug 6 08:15:05 server kernel: [sys_read+150/288] sys_read [kernel] 0x96
Aug 6 08:15:05 server kernel: [<c013dc66>] sys_read [kernel] 0x96
Aug 6 08:15:05 server kernel: [system_call+51/56] system_call [kernel]
0x33
Aug 6 08:15:05 server kernel: [<c010719b>] system_call [kernel] 0x33
Aug 6 08:15:05 server kernel:
Aug 6 08:15:05 server kernel:
Aug 6 08:15:05 server kernel: Code: 89 50 04 89 02 c7 41 04 00 00 00 00 c7
43 08 00 00 00 00 8b
Aug 6 08:15:07 server dhcpd: DHCPREQUEST for 10.151.6.123 from
00:80:ad:71:d8:ff (LIBRARYOFFICE) via eth1
Aug 6 08:15:07 server dhcpd: DHCPACK on 10.151.6.123 to 00:80:ad:71:d8:ff
(LIBRARYOFFICE) via eth1

*** logging stops here. Server dies shortly after ***

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