kernel Oops in ext3 code

From: Norbert Preining
Date: Thu Sep 27 2007 - 06:59:46 EST

Hi all!

(Please Cc)

kernel 2.6.23-rc6

kernel ooops:

BUG: unable to handle kernel paging request at virtual address 1000004b
printing eip:
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: vboxdrv binfmt_misc fuse coretemp hwmon gspca videodev v4l2_common v4l1_compat iwl3945 mac80211 tifm_7xx1 tifm_core joydev irda crc_ccitt 8250_pnp 8250 serial_core firewire_ohci firewire_core crc_itu_t
CPU: 0
EIP: 0060:[<c0195bd3>] Not tainted VLI
EFLAGS: 00010206 (2.6.23-rc6 #1)
EIP is at ext3_discard_reservation+0x18/0x4d
eax: dff23800 ebx: 10000033 ecx: dfc15ec0 edx: ffffffff
esi: c0007c44 edi: 10000033 ebp: dfc2bef4 esp: dfc2beac
ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
Process kswapd0 (pid: 261, ti=dfc2a000 task=dfcac570 task.ti=dfc2a000)
Stack: c0007ba4 c0007c44 10000033 c019ec51 c0007c44 c0007d8c 0000002c c0171b1b
0000002c c0007c44 c0007c4c c0171da2 c050880c 00000000 00000080 00000080
c0171fb8 00000080 c0007e48 df9e3910 00007404 c03f5634 00000080 000000d0
Call Trace:
[<c019ec51>] ext3_clear_inode+0x5d/0x76
[<c0171b1b>] clear_inode+0x6b/0xb9
[<c0171da2>] dispose_list+0x48/0xc9
[<c0171fb8>] shrink_icache_memory+0x195/0x1bd
[<c014f5ec>] shrink_slab+0xe2/0x159
[<c014f9a0>] kswapd+0x2d3/0x431
[<c0132520>] autoremove_wake_function+0x0/0x33
[<c014f6cd>] kswapd+0x0/0x431
[<c0132453>] kthread+0x38/0x5d
[<c013241b>] kthread+0x0/0x5d
[<c0104b73>] kernel_thread_helper+0x7/0x10
Code: 83 f8 01 19 c0 f7 d0 83 e0 08 89 42 0c 89 56 b4 5b 5e c3 57 56 89 c6 53 8b 58 b4 8b 80 a4 00 00 00 85 db 8b 80 78 01 00 00 74 30 <83> 7b 18 00 74 2a 8d b8 00 03 00 00 89 f8 e8 b8 ca 1a 00 83 7b
EIP: [<c0195bd3>] ext3_discard_reservation+0x18/0x4d SS:ESP 0068:dfc2beac

Sysrq did work, so the oops was saved. Good.

Any ideas?

Best wishes


Dr. Norbert Preining <preining@xxxxxxxx> Vienna University of Technology
Debian Developer <preining@xxxxxxxxxx> Debian TeX Group
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
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