We've come across an Oops, in what appears to NFS.
2.6.22.6 vanilla + realtime-lsm
RHEL4 over PXE/NFS_ROOT
Oct 9 14:26:13 WS15 gdm(pam_unix)[6038]: session opened for user mockj
by (uid=0)
Oct 9 14:26:48 WS15 gconfd (mockj-7583): starting (version 2.8.1), pid
7583 user 'mockj'
Oct 9 14:26:48 WS15 kernel: BUG: unable to handle kernel NULL pointer
dereference at virtual address 00000004
Oct 9 14:26:48 WS15 kernel: printing eip:
Oct 9 14:26:48 WS15 kernel: c01a9fb8
Oct 9 14:26:48 WS15 kernel: *pde = c691d067
Oct 9 14:26:48 WS15 kernel: Oops: 0000 [#1]
Oct 9 14:26:48 WS15 kernel: PREEMPT SMP
Oct 9 14:26:48 WS15 kernel: Modules linked in: lm85 w83781d hwmon_vid
hwmon ipv6 parport_pc lp parport autofs4 tulip dm_mirror dm_mod button
battery ac mct_u232 usbserial uhci_hcd ehci_hcd nvidia(P) e7xxx_edac
edac_mc rng_core i2c_i801 i2c_core aic79xx scsi_transport_spi ata_piix
libata scsi_mod snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss
snd_mixer_oss snd_pcm snd_page_alloc snd_seq_dummy snd_seq_oss
snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore
realtime commoncap
Oct 9 14:26:48 WS15 kernel: CPU: 0
Oct 9 14:26:48 WS15 kernel: EIP: 0060:[<c01a9fb8>] Tainted: P
VLI
Oct 9 14:26:48 WS15 kernel: EFLAGS: 00210246 (2.6.22-6.0.WSsmp #1)
Oct 9 14:26:48 WS15 kernel: EIP is at nfs_lookup+0x11b/0x26a
Oct 9 14:26:48 WS15 kernel: eax: 00000000 ebx: c0367600 ecx:
00000000 edx: 00000000
Oct 9 14:26:48 WS15 kernel: esi: 00000000 edi: 00000000 ebp:
00000000 esp: f63b5d44
Oct 9 14:26:48 WS15 kernel: ds: 007b es: 007b fs: 00d8 gs: 0033
ss: 0068
Oct 9 14:26:48 WS15 kernel: Process gconfd-2 (pid: 7583, ti=f63b4000
task=f6273070 task.ti=f63b4000)
Oct 9 14:26:48 WS15 kernel: Stack: f63b5d60 f63b5d98 f63b5d9c 7fffffff
f63b5ed8 f63ef118 f63f5e8c f63b0002
Oct 9 14:26:48 WS15 kernel: f63db21c 00000000 c014843e 00000000
0000000e 00000001 00000001 000081c0
Oct 9 14:26:48 WS15 kernel: 00000002 00001459 000000c9 ...