<html><head><style type="text/css"><!-- DIV {margin:0px;} P {margin:0px;} --></style></head><body><font face="times new roman, new york, times, serif" size=3>Hi<br><br>posted this on the forum but then found the mailing list :-) so hope it's ok to post to the list aswell.<br><br>we have a centos 4.3 server running samba, winbind and squid
authenticating by winbind to our NT domain. Once in a while in the
early hours it has the below error in /var/log/messages this causes the
machine to fail and we carn't connect to it. It's double dutch to me,
hopefully someone on here will have a suggestion though. TIA<br><br>Aug 22 04:03:15 wssproxy kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000024<br>Aug 22 04:03:15 wssproxy kernel: printing eip:<br>Aug 22 04:03:15 wssproxy kernel: c0187833<br>Aug 22 04:03:15 wssproxy kernel: *pde = 1859f067<br>Aug 22 04:03:15 wssproxy kernel: Oops: 0000 [#1]<br>Aug
22 04:03:15 wssproxy kernel: Modules linked in: md5 ipv6 autofs4 sunrpc
button battery ac shpchp pcnet32 mii floppy dm_snapshot dm_zero
dm_mirror ext3 jbd dm_mod mptscs$<br>Aug 22 04:03:15 wssproxy kernel: CPU: 0<br>Aug 22 04:03:15 wssproxy kernel: EIP: 0060:[<c0187833>] Not tainted VLI<br>Aug 22 04:03:15 wssproxy kernel: EFLAGS: 00000283 (2.6.9-34.0.2.EL)<br>Aug 22 04:03:15 wssproxy kernel: EIP is at iput+0x14/0x61<br>Aug 22 04:03:15 wssproxy kernel: eax: 00000000 ebx: d5b68bf4 ecx: d5b68c04 edx: d5b68c04<br>Aug 22 04:03:15 wssproxy kernel: esi: d5b68bf4 edi: 00000074 ebp: efeee9e0 esp: c17f5eec<br>Aug 22 04:03:15 wssproxy kernel: ds: 007b es: 007b ss: 0068<br>Aug 22 04:03:15 wssproxy kernel: Process kswapd0 (pid: 28, threadinfo=c17f5000 task=c17de0b0)<br>Aug 22 04:03:15 wssproxy kernel: Stack: dc8ba048 c0182a6d 00000000 000000d8 00000000 c01834b2 c0152e0b 0017ed00<br>Aug 22 04:03:15 wssproxy kernel: 00000000 000001fe 00000000 00000bff 000000d0 00000020 c0360ba0 00000000<br>Aug 22 04:03:15 wssproxy kernel: c0360ba0 00000000 c015444b c01131cc 00000bff c17f5f9c 0000000d 00000000<br>Aug 22 04:03:15 wssproxy kernel: Call Trace:<br>Aug 22 04:03:15 wssproxy kernel: [<c0182a6d>] prune_dcache+0x2fe/0x49d<br>Aug 22 04:03:15 wssproxy kernel: [<c01834b2>] shrink_dcache_memory+0x14/0x2b<br>Aug 22 04:03:15 wssproxy kernel: [<c0152e0b>] shrink_slab+0xf7/0x14c<br>Aug 22 04:03:15 wssproxy kernel: [<c015444b>] balance_pgdat+0x1b3/0x2cb<br>Aug 22 04:03:15 wssproxy kernel: [<c01131cc>] sched_clock+0x30/0x73<br>Aug 22 04:03:15 wssproxy kernel: [<c015461c>] kswapd+0xb9/0xbb<br>Aug 22 04:03:15 wssproxy kernel: [<c011e867>] autoremove_wake_function+0x0/0x2d<br>Aug 22 04:03:15 wssproxy kernel: [<c031139a>] ret_from_fork+0x6/0x14<br>Aug 22 04:03:15 wssproxy kernel: [<c011e867>] autoremove_wake_function+0x0/0x2d<br>Aug 22 04:03:15 wssproxy kernel: [<c0154563>] kswapd+0x0/0xbb<br>Aug 22 04:03:15 wssproxy kernel: [<c01041dd>] kernel_thread_helper+0x5/0xb<br>Aug
22 04:03:15 wssproxy kernel: Code: 5b 5e e9 18 de ff ff 83 78 24 00 75
05 e9 4e fb ff ff e9 72 fd ff ff 53 85 c0 89 c3 74 58 83 bb 9c 01 00 00
20 8b 80 d4 00 00 00 <8b>$<br>Aug 22 04:03:15 wssproxy kernel: <0>Fatal exception: panic in 5 seconds<br>Aug 22 04:03:16 wssproxy kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000024<br>Aug 22 04:03:16 wssproxy kernel: printing eip:<br>Aug 22 04:03:16 wssproxy kernel: c0187833<br>Aug 22 04:03:16 wssproxy kernel: *pde = 00000000<br>Aug 22 04:03:16 wssproxy kernel: Oops: 0000 [#2]<br>Aug
22 04:03:16 wssproxy kernel: Modules linked in: md5 ipv6 autofs4 sunrpc
button battery ac shpchp pcnet32 mii floppy dm_snapshot dm_zero
dm_mirror ext3 jbd dm_mod mptscs$<br>Aug 22 04:03:16 wssproxy kernel: CPU: 0<br>Aug 22 04:03:16 wssproxy kernel: EIP: 0060:[<c0187833>] Not tainted VLI<br>Aug 22 04:03:16 wssproxy kernel: EFLAGS: 00000283 (2.6.9-34.0.2.EL)<br>Aug 22 04:03:16 wssproxy kernel: EIP is at iput+0x14/0x61<br>Aug 22 04:03:16 wssproxy kernel: eax: 00000000 ebx: d5b6868c ecx: d5b6869c edx: d5b6869c<br>Aug 22 04:03:16 wssproxy kernel: esi: d5b6868c edi: 00000080 ebp: efeee9e0 esp: ccd32cf4<br>Aug 22 04:03:16 wssproxy kernel: ds: 007b es: 007b ss: 0068<br>Aug 22 04:03:16 wssproxy kernel: Process prelink (pid: 1580, threadinfo=ccd32000 task=c7e74c50)<br>Aug 22 04:03:16 wssproxy kernel: Stack: dc8bad68 c0182a6d 00000000 00000080 00000000 c01834b2 c0152e0b 0017d400<br>Aug 22 04:03:16 wssproxy kernel: 00000000 00000008 00000000 0002b94a 000001d2 00000020 c0360fbc 000001d2<br>Aug 22 04:03:16 wssproxy kernel: 0000000b ccd32db0 c01541c8 0002b94a 00000000 00000000 00000000 00000020<br>Aug 22 04:03:16 wssproxy kernel: Call Trace:<br>Aug 22 04:03:16 wssproxy kernel: [<c0182a6d>] prune_dcache+0x2fe/0x49d<br>Aug 22 04:03:16 wssproxy kernel: [<c01834b2>] shrink_dcache_memory+0x14/0x2b<br>Aug 22 04:03:16 wssproxy kernel: [<c0152e0b>] shrink_slab+0xf7/0x14c<br>Aug 22 04:03:16 wssproxy kernel: [<c01541c8>] try_to_free_pages+0xb9/0x189<br>Aug 22 04:03:16 wssproxy kernel: [<c014c3aa>] __alloc_pages+0x1fe/0x2f7<br>Aug 22 04:03:16 wssproxy kernel: [<c014f250>] do_page_cache_readahead+0x14b/0x262<br>Aug 22 04:03:16 wssproxy kernel: [<c014f4cb>] page_cache_readahead+0x164/0x20a<br>Aug 22 04:03:16 wssproxy kernel: [<c014872e>] do_generic_mapping_read+0x11c/0x403<br>Aug 22 04:03:16 wssproxy kernel: [<c0148c3e>] __generic_file_aio_read+0x160/0x17a<br>Aug 22 04:03:16 wssproxy kernel: [<c0148a15>] file_read_actor+0x0/0xc9<br>Aug 22 04:03:16 wssproxy kernel: [<c0148c98>] generic_file_aio_read+0x40/0x47<br>Aug 22 04:03:16 wssproxy kernel: [<c0168a4a>] do_sync_read+0x97/0xc9<br>Aug 22 04:03:16 wssproxy kernel: [<c0179a94>] open_namei+0x2c5/0x542<br>Aug 22 04:03:16 wssproxy kernel: [<c0167c76>] filp_open+0x5c/0x70<br>Aug 22 04:03:16 wssproxy kernel: [<c011e867>] autoremove_wake_function+0x0/0x2d<br>Aug 22 04:03:16 wssproxy kernel: [<c0168b32>] vfs_read+0xb6/0xe2<br>Aug 22 04:03:16 wssproxy kernel: [<c0168d45>] sys_read+0x3c/0x62<br>Aug 22 04:03:16 wssproxy kernel: [<c031147b>] syscall_call+0x7/0xb<br>Aug
22 04:03:16 wssproxy kernel: Code: 5b 5e e9 18 de ff ff 83 78 24 00 75
05 e9 4e fb ff ff e9 72 fd ff ff 53 85 c0 89 c3 74 58 83 bb 9c 01 00 00
20 8b 80 d4 00 00 00 <8b>$<br>Aug 22 04:03:16 wssproxy kernel: <0>Fatal exception: panic in 5 seconds<br>Aug 22 04:03:18 wssproxy ntpd[1937]: sendto(193.13.9.98): Bad file descriptor<br><br><span style="font-family: courier new,normal;"><br><br>Cheers<br>Andy Dean<br><br>E-Mail Disclaimer:<br>The information in this e-mail is confidential, and may be legally privileged. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful.<br><br></span></font></body></html>