Kernel Paging Bug at mm/filemap.c:128
In the last couple of months, I've been plagued by a problem with the system that hosts this website. A nice kernel panic followed by a random uptime and a crash. This is a bit difficult to swallow when the server is nearly 1500 miles away but a reboot and away it goes again.
The actual error is shown here:
System Message: ERROR/3 (<string>, line 8)
Cannot find pygments lexer for language "dmesg"
.. code-block:: dmesg
Feb 01 14:13:27 [kernel] kernel BUG at mm/filemap.c:128!
Feb 01 14:13:27 [kernel] Modules linked in:
Feb 01 14:13:27 [kernel] Pid: 13604, comm: apache2 Not tainted 2.6.36-hardened-r6 #1 0K8980/Dimension 3000
Feb 01 14:13:27 [kernel] EIP: 0060:[<c105af4f>] EFLAGS: 00010046 CPU: 0
Feb 01 14:13:27 [kernel] EIP is at __remove_from_page_cache+0x44/0x91
Feb 01 14:13:27 [kernel] EAX: 00000000 EBX: c16acf40 ECX: 00000015 EDX: 00000015
Feb 01 14:13:27 [kernel] ESI: de877d7c EDI: ffffffff EBP: 00000015 ESP: dc4abe28
Feb 01 14:13:27 [kernel] DS: 0068 ES: 0068 FS: 00d8 GS: 0033 SS: 0068
Feb 01 14:13:27 [kernel] de877d7c c16acf40 c105afbc c16acf40 de877d7c c1061079 c16acf40 00000000
Feb 01 14:13:27 [kernel] <0> c1061123 de877d7c 00000015 00000006 ffffffff 00000000 0000000e 00000000
Feb 01 14:13:27 [kernel] <0> c1641f40 c1641f60 c1641f80 c1641fa0 c173ecc0 c1695de0 c16acf40 c15d2f00
Feb 01 14:13:27 [kernel] [<c105afbc>] ? remove_from_page_cache+0x20/0x27
Feb 01 14:13:27 [kernel] [<c1061079>] ? truncate_inode_page+0x6c/0x7d
Feb 01 14:13:27 [kernel] [<c1061123>] ? truncate_inode_pages_range+0x99/0x23a
Feb 01 14:13:27 [kernel] [<c10612cd>] ? truncate_inode_pages+0x9/0xc
Feb 01 14:13:27 [kernel] [<c10fa452>] ? ext4_evict_inode+0x83/0x265
Feb 01 14:13:27 [kernel] [<c108dab2>] ? evict+0x17/0x7b
Feb 01 14:13:27 [kernel] [<c108e211>] ? iput+0x182/0x1df
Feb 01 14:13:27 [kernel] [<c108b58e>] ? d_kill+0x2a/0x43
Feb 01 14:13:27 [kernel] [<c108c292>] ? dput+0xf3/0xfb
Feb 01 14:13:27 [kernel] [<c107e289>] ? fput+0x191/0x1b3
Feb 01 14:13:27 [kernel] [<c106e14f>] ? remove_vma+0x34/0x52
Feb 01 14:13:27 [kernel] [<c106f26a>] ? __do_munmap+0x257/0x2a8
Feb 01 14:13:27 [kernel] [<c106f335>] ? sys_munmap+0x49/0x60
Feb 01 14:13:27 [kernel] [<c1378005>] ? syscall_call+0x7/0xb
Feb 01 14:13:27 [kernel] ---[ end trace 4598df0f375c22c4 ]---
The uprecords of this machine:
# Uptime | System Boot up ----------------------------+--------------------------------------------------- 1 24 days, 20:31:52 | Linux 2.6.32-hardened-r2 Thu Nov 25 20:58:34 2010 2 18 days, 09:10:28 | Linux 2.6.36-hardened-r6 Sat Jan 8 12:31:38 2011 3 15 days, 12:41:25 | Linux 2.6.32-hardened-r9 Fri Oct 8 09:48:07 2010 4 14 days, 03:43:24 | Linux 2.6.32-hardened-r2 Wed Nov 3 11:29:55 2010 5 9 days, 19:44:59 | Linux 2.6.32-hardened-r2 Sun Oct 24 15:14:10 2010 6 7 days, 21:49:22 | Linux 2.6.32-hardened-r2 Mon Dec 20 17:31:43 2010 7 7 days, 17:34:24 | Linux 2.6.36-hardened-r6 Tue Dec 28 15:58:45 2010 8 7 days, 08:53:26 | Linux 2.6.32-hardened-r2 Thu Nov 18 11:55:57 2010 9 5 days, 16:58:46 | Linux 2.6.36-hardened-r6 Wed Jan 26 21:43:51 2011 10 3 days, 00:09:43 | Linux 2.6.36-hardened-r6 Wed Jan 5 12:17:33 2011 ----------------------------+--------------------------------------------------- -> 13 0 days, 00:14:46 | Linux 2.6.36-hardened-r6 Tue Feb 1 15:02:26 2011 ----------------------------+--------------------------------------------------- 1up in 0 days, 00:40:31 | at Tue Feb 1 15:57:42 2011 t10 in 2 days, 23:54:58 | at Fri Feb 4 15:12:09 2011 no1 in 24 days, 20:17:07 | at Sat Feb 26 11:34:18 2011 up 115 days, 09:00:18 | since Fri Oct 8 09:48:07 2010 down 0 days, 21:28:47 | since Fri Oct 8 09:48:07 2010 %up 99.230 | since Fri Oct 8 09:48:07 2010
I suspect this to be a hardware problem but if anyone has any other ideas as to what might cause this type of problem please let me know.
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