ext3 kernel panic

Jack Neely jjneely at ncsu.edu
Wed Feb 25 16:13:37 UTC 2009


I have a RHEL 3 production Cyrus IMAP server that has kernel paniced
twice in as many weeks with something similar to the below.  The /imap
partition (where the IO was in question) is about 98% full with about
6.2G free and is hosted on a fiber connected EMC Clariion lun.
Currently running kernel 2.4.21-15.0.4.ELsmp.

I know things are old here, and the machine is on the upgrade list, but
I need to do due diligence to figure out how serious this error is.
Does anyone have any advice why this is happening?

Jack Neely

Unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
*pde = 299d3001
*pte = 00000000
Oops: 0002
audit autofs openafs e1000 iptable_filter ip_tables floppy microcode emcphr emcpmpap emcpmpaa emcpmpc emcpmp sg emcp emcpsf loop lvm-mod keybdev mousedev hid 
CPU:    0
EIP:    0060:[<f88d2863>]    Tainted: P 
EFLAGS: 00010213

EIP is at ext3_orphan_del [ext3] 0x73 (2.4.21-15.0.4.ELsmp/i686)
eax: c520d360   ebx: e3fc8900   ecx: e3fc8aac   edx: 00000000
esi: 00000000   edi: c520d000   ebp: c520d360   esp: eed8fddc
ds: 0068   es: 0068   ss: 0068
Process imapd (pid: 7628, stackpage=eed8f000)
Stack: e4de9940 eed8e000 c69b6200 e9ffde00 f88b8445 000f8094 c520d0fc e1ee4e80 
       00000007 00000292 e3fc8900 00000000 eed8e000 f88cc72c c69b6200 e3fc8900 
       e4de9940 eed8e000 e9ffde00 f88cc84c e4de9940 e3fc8900 ee6d7500 e3fc8900 
Call Trace:   [<f88b8445>] journal_start_Rsmp_25661df5 [jbd] 0xa5 (0xeed8fdec)
[<f88cc72c>] start_transaction [ext3] 0x8c (0xeed8fe10)
[<f88cc84c>] ext3_delete_inode [ext3] 0x8c (0xeed8fe28)
[<f88cc7c0>] ext3_delete_inode [ext3] 0x0 (0xeed8fe3c)
[<c017ccd0>] iput [kernel] 0x150 (0xeed8fe44)
[<c0179afa>] dput [kernel] 0xca (0xeed8fe60)
[<c0161a5b>] __fput [kernel] 0xbb (0xeed8fe74)
[<c015fc0e>] filp_close [kernel] 0x8e (0xeed8fe90)
[<c012bf6c>] put_files_struct [kernel] 0x6c (0xeed8feac)
[<c012c85a>] do_exit [kernel] 0x1ba (0xeed8fec8)
[<c012cbbb>] do_group_exit [kernel] 0x8b (0xeed8fee4)
[<c013656b>] get_signal_to_deliver [kernel] 0x20b (0xeed8fef8)
[<c010bdd4>] do_signal [kernel] 0x64 (0xeed8ff20)
[<c0175a56>] sys_select [kernel] 0x296 (0xeed8ff60)

Code: 89 42 04 89 10 c7 41 04 00 00 00 00 89 8b ac 01 00 00 89 8b

Kernel panic: Fatal exception

Jack Neely <jjneely at ncsu.edu>
Linux Czar, OIT Campus Linux Services
Office of Information Technology, NC State University
GPG Fingerprint: 1917 5AC1 E828 9337 7AA4  EA6B 213B 765F 3B6A 5B89

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