Kernel 2.6.18 cifs instability

[Greg Trounson]

I'm having major stability problems with 2.6.18-x kernels.  When trying to mount cifs 
shares with any 2.6.18 kernel on FC5 or FC6 the system becomes unstable, usually crashing 
with a kernel panic a few seconds after the mount.  I've seen this on several machines, 
including a dual athlon box (i386), and an athlon64 (x86_64).  A typical log for what goes 
on is attached below.

I've also been having stability problems with 2.6.18 on my Debian Sid box, though not 
related to cifs mounts, so I'm wondering if this kernel release might have just escaped 
the barn a bit early.

In every case I've had to revert to 2.6.17 and had no problems since.

Is anyone else seeing this?

thanks,
Greg

Message from syslogd at mgl26 at Fri Dec  1 10:14:06 2006 ...
mgl26 kernel: ------------[ cut here ]------------

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: kernel BUG at lib/list_debug.c:65!

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: invalid opcode: 0000 [#1]

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: SMP

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: CPU:    0

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: EIP is at list_del+0x23/0x6c

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: eax: 00000048   ebx: d0b53da0   ecx: c067e1d0   edx: 00000086

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: esi: c176f944   edi: c176f920   ebp: c176f930   esp: ddfdff20

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: ds: 007b   es: 007b   ss: 0068

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: Process events/0 (pid: 5, ti=ddfdf000 task=dde00030 task.ti=ddfdf000)

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: Stack: c0641cb6 d0b53da0 d0b50080 d0b53da0 c046b6dc 00000005 ddd413e0 00000003

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel:        c176f920 ddd413e0 c146ff40 00000282 c046caf9 00000000 00000000 c13c7aa0

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel:        c13c7aa4 c0433c38 00000246 c146ff40 c146ff60 c046ca47 00000000 c146ff60

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel: Call Trace:

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel:  [<c046b6dc>] drain_freelist+0x3b/0x7b

Message from syslogd at mgl26 at Fri Dec  1 10:14:07 2006 ...
mgl26 kernel:  [<c046caf9>] cache_reap+0xb2/0x117

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel:  [<c0433c38>] run_workqueue+0x83/0xc5

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel:  [<c0434528>] worker_thread+0xd9/0x10d

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel:  [<c04369fb>] kthread+0xc0/0xed

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel:  [<c0404dab>] kernel_thread_helper+0x7/0x10

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel: DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel: Leftover inexact backtrace:

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel:  =======================

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel: Code: 00 00 89 c3 eb e8 90 90 53 89 c3 83 ec 0c 8b 40 04 8b 00 39 d8 74 1c 
89 5c 24 04 89 44 24 08 c7 04 24 b6 1c 64 c0 e8 dc bd f3 ff <0f> 0b 41 00 f3 1c 64 c0 8b 
03 8b 40 04 39 d8 74 1c 89 5c 24 04

Message from syslogd at mgl26 at Fri Dec  1 10:14:08 2006 ...
mgl26 kernel: EIP: [<c04e99eb>] list_del+0x23/0x6c SS:ESP 0068:ddfdff2