RE: [NFS] Kernel Oops in NFS

Previous thread: [PATCH 2/2] i386 memory initialization cleanup by Johannes Weiner on Wednesday, October 10, 2007 - 7:44 am. (1 message)

Next thread: ARPM shutdown oops (Re: [stable] [patch 09/12] Fix SMP poweroff hangs) by Linus Torvalds on Wednesday, October 10, 2007 - 7:57 am. (9 messages)
From: Jason.V.Mock
Date: Wednesday, October 10, 2007 - 7:39 am

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 ...
From: Jason.V.Mock
Date: Thursday, October 18, 2007 - 2:01 pm

I was just checking to see if there's anything that I'm missing here, in
regards to never hearing a single thing back about this.

- Jason Mock
-

From: Trond Myklebust
Date: Thursday, October 18, 2007 - 4:24 pm

Well... Your Oops did have the 'tainted' flag set, but in this case I
believe that the issue is already known. Please try

  http://client.linux-nfs.org/Linux-2.6.x/2.6.22/linux-2.6.22-010-fix_nfs_reval_fsid.dif

Trond

-

From: Jason.V.Mock
Date: Friday, October 19, 2007 - 11:30 am

Thanks Trond.  The Tainted flag is *probably* due to the NVIDIA driver,
but I'd also have to check the realtime-lsm.  Either way we'll get that
built up and see...

Thanks again!!

- Jason Mock
-

Previous thread: [PATCH 2/2] i386 memory initialization cleanup by Johannes Weiner on Wednesday, October 10, 2007 - 7:44 am. (1 message)

Next thread: ARPM shutdown oops (Re: [stable] [patch 09/12] Fix SMP poweroff hangs) by Linus Torvalds on Wednesday, October 10, 2007 - 7:57 am. (9 messages)