2000-12-15 09:29:11

by torben fjerdingstad

[permalink] [raw]
Subject: 2.4.0-test12 kernel BUG at buffer.c:765!

Dual pentium, aic7xxx,
In the middle of mke2fs'ing /dev/md1 (3x18Gb disks):

raid5: resync finished.
kernel BUG at buffer.c:765!
invalid operand: 0000
CPU: 1
EIP: 0010:[<c0131831>]
EFLAGS: 00010286
eax: 0000001c ebx: dc043b28 ecx: 00000000 edx: 01000000
esi: c56a3160 edi: c56a3000 ebp: dc043ae0 esp: cb845e8c
ds: 0018 es: 0018 ss: 0018
Process raid5d (pid: 3781, stackpage=cb845000)
Stack: c020de85 c020e1ba 000002fd 00000004 f891703c dc043ae0 00000001
00000004
c56a3000 00000001 00000000 f8917bbf c56a3000 00000001 00000001
c56a3000
e3ced400 c56a3000 00000003 00000003 e3ced400 f8918717 c56a3000
c56a3000
Call Trace: [<c020de85>] [<c020e1ba>] [<f891703c>] [<f8917bbf>]
[<f8918717>] [<c010a806>] [<f8918c89>]
[<c01c0547>] [<c0107488>]
Code: 0f 0b 83 c4 0c 5b c3 55 57 56 53 8b 5c 24 14 8b 54 24 18 85


The symbols around c0131831 are here:
c01317c0 T init_buffer
c01317dc t end_buffer_io_bad
c0131838 t end_buffer_io_async
c0131958 T fsync_inode_buffers

Here is the output from mke2fs until it stuck:
# mke2fs /dev/md1
mke2fs 1.19, 13-Jul-2000 for EXT2 FS 0.5b, 95/08/09
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
4480448 inodes, 8960192 blocks
448009 blocks (5.00%) reserved for the super user
First data block=0
274 block groups
32768 blocks per group, 32768 fragments per group
16352 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624

Writing inode tables: 110/274

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