I got a similar but slightly different bug:
kernel BUG at kernel/sched.c:2731!
invalid operand: 0000 [#1]
PREEMPT
CPU: 0
EIP: 0060:[<c01160d5>] Not tainted VLI
EFLAGS: 00010202 (2.6.12-rc4-mm1)
EIP is at sub_preempt_count+0x35/0x40
eax: dfbbe000 ebx: dfbbfe98 ecx: dfc1b4cc edx: 00000001
esi: dfc1b450 edi: dfbbfdf4 ebp: dfbbfde4 esp: dfbbfde4
ds: 007b es: 007b ss: 0068
Process mount (pid: 450, threadinfo=dfbbe000 task=dfcac5e0)
Stack: c14d6000 c01dc3a4 dfc1b450 dfbbfe98 4b1b5d0b 00000000 00000001 dfbbfe00
dfbbfe00 00000000 dfbbfe0c dfbbfe0c 00000000 00000000 00000000 00000000
00000000 dfbbfe28 dfbbfe28 dfbbfe34 00000000 00000001 00000000 dfbbfe40
Call Trace:
[<c01dc3a4>] reiser4_sync_inodes+0x44/0x90
[<c017c83e>] sync_sb_inodes+0x2e/0x40
[<c017c9c4>] sync_inodes_sb+0x74/0x80
[<c0158af8>] fsync_super+0x18/0xb0
[<c015e87d>] do_remount_sb+0x3d/0x100
[<c0175c23>] do_remount+0x93/0xd0
[<c01766c7>] do_mount+0x187/0x1a0
[<c01764e3>] copy_mount_options+0x63/0xc0
[<c0176b2f>] sys_mount+0x9f/0xe0
[<c0102fc1>] syscall_call+0x7/0xb
Code: 89 e5 3b 50 14 7f 24 81 fa fe 00 00 00 76 0c b8 00 e0 ff ff 21 e0 29 50 14 c9 c3 80 78 14 00 75 ee 0f 0b af 0a d2 85 3f c0 eb e4 <0f> 0b ab 0a d2
85 3f c0 eb d2 90 55 89 e5 8b 45 08 8b 50 04 89
/etc/init.d/rcS: line 290: 450 Segmentation fault mount -n -o remount,$rootopts,$rootmode $fstabroot / 2>/dev/null
I'm assuming the source is the same.
Unfortunately, I'm going to be away until Tuesday.
Andrew Wade
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