Bug 442340

Description of problem:

kernel panic

Apr  9 10:22:10 server1 sshd(pam_unix)[20923]: authentication failure; logname=
uid=0 euid=0 tty=ssh ruser= rhost=mail2.axit.pl  user=root
Apr  9 10:22:15 server1 sshd(pam_unix)[21707]: session opened for user root by
root(uid=0)
Apr  9 10:22:19 server1 su(pam_unix)[22403]: session opened for user user1 by
root(uid=0)
Apr  9 10:24:40 server1 su(pam_unix)[22403]: session closed for user user1
Apr  9 10:25:29 server1 sshd(pam_unix)[11587]: session opened for user root by
root(uid=0)
Apr  9 10:28:43 server1 sshd(pam_unix)[29921]: session opened for user root by
root(uid=0)
Apr  9 10:29:24 server1 eip: c011e8a8
Apr  9 10:29:24 server1 ------------[ cut here ]------------
Apr  9 10:29:24 server1 kernel BUG at include/asm/spinlock.h:146!
Apr  9 10:29:24 server1 invalid operand: 0000 [#1]
Apr  9 10:29:24 server1 SMP
Apr  9 10:29:24 server1 Modules linked in: mptctl mptbase 8021q sg cpqci(U)
dgdm(U) i2c_dev i2c_core fuse(U) dm_mirror dm_mod button battery ac uhci_hcd
ehci_hcd hw_random tg3(U) bonding(U) floppy ext3 jbd cciss sd_mod scsi_mod
Apr  9 10:29:24 server1 CPU:    0
Apr  9 10:29:24 server1 EIP:    0060:[<c02d33f6>]    Tainted: P      VLI
Apr  9 10:29:24 server1 EFLAGS: 00010016   (2.6.9-42.0.2.ELsmp)
Apr  9 10:29:24 server1 EIP is at _spin_lock_irqsave+0x20/0x45
Apr  9 10:29:24 server1 eax: c011e8a8   ebx: 00000246   ecx: c02e7077   edx:
c02e7077
Apr  9 10:29:24 server1 esi: e0b9feec   edi: 00000283   ebp: f7feaf68   esp:
f7feaf50
Apr  9 10:29:24 server1 ds: 007b   es: 007b   ss: 0068
Apr  9 10:29:24 server1 Process khelper (pid: 14, threadinfo=f7fea000 task=f7f7b230)
Apr  9 10:29:24 server1 Stack: e0b9fee8 e0b9feec c011e8a8 e0b9fdd4 e0b9fdd8
00000283 f7e54000 c0130c63
Apr  9 10:29:24 server1 e0b9fe14 c01307d6 ffffffff ffffffff 00000001 00000000
c011e794 00010000
Apr  9 10:29:24 server1 00000000 c0416120 c33b9de0 00000000 00000000 f7f7b230
c011e794 00100100
Apr  9 10:29:24 server1 Call Trace:
Apr  9 10:29:24 server1 [<c011e8a8>] complete+0x12/0x3d
Apr  9 10:29:24 server1 [<c0130c63>] worker_thread+0x168/0x1d5
Apr  9 10:29:24 server1 [<c01307d6>] __call_usermodehelper+0x0/0x41
Apr  9 10:29:24 server1 [<c011e794>] default_wake_function+0x0/0xc
Apr  9 10:29:24 server1 [<c011e794>] default_wake_function+0x0/0xc
Apr  9 10:29:24 server1 [<c0130afb>] worker_thread+0x0/0x1d5
Apr  9 10:29:24 server1 [<c01341ed>] kthread+0x73/0x9b
Apr  9 10:29:24 server1 [<c013417a>] kthread+0x0/0x9b
Apr  9 10:29:24 server1 [<c01041f5>] kernel_thread_helper+0x5/0xb
Apr  9 10:29:24 server1 Code: 81 00 00 00 00 01 c3 f0 ff 00 c3 56 89 c6 53
9c 5b fa 81 78 04 ad 4e ad de 74 18 ff 74 24 08 68 77 70 2e c0 e8 aa f4 e4 ff
59 58 <0f> 0b 92 00 e2 60 2e c0 f0 fe 0e 79 13 f7 c3
00 02 00 00 74 01
Apr  9 10:29:24 server1 <0>Fatal exception: panic in 5 seconds


Version-Release number of selected component (if applicable):

RH4U4 with some minor updates
kernel 2.6.9-42.0.2.ELsmp

How reproducible:
no idea

Steps to Reproduce:
1.
2.
3.
  
Actual results:
kernel panic

Expected results:
no kernel panic

Additional info:

Root logged in, but only changed to user1 (su -). Server was working for several
days without any problems. No idea what happened. Also kernel panic message did
not give me any clue what happened :/