Re: oops on shutdown.

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On Mon, 12 Dec 2005 12:22:26 -0800
Andrew Morton <[email protected]> wrote:

> Stephen Hemminger <[email protected]> wrote:
> >
> > This is a 2 CPU Opteron box.  It hung on a basic shutdown reboot
> >  running 2.6.15-rc5. It doesn't look related to the sky2 driver.
> >  I had a couple of nfs client mounts.
> > 
> > 
> >  [264357.575968] nfsd: last server has exited
> >  [264357.589641] nfsd: unexporting all filesystems
> >  [264357.605047] RPC: failed to contact portmap (errno -5).
> >  [264362.028736] sky2 eth1: disabling interface
> >  [264369.044649] Unable to handle kernel NULL pointer dereference at 0000000000000001 RIP: 
> >  [264369.063676] <ffffffff8015bdc7>{find_get_pages+87}
> >  [264369.088376] PGD 7d698067 PUD 7dc0a067 PMD 0 
> >  [264369.103310] Oops: 0000 [1] SMP 
> >  [264369.114347] CPU 0 
> >  [264369.121489] Modules linked in: nfsd exportfs binfmt_misc video thermal processor fan button battery ac ohci_hcd ehci_hcd i2c_amd8111 i2c_amd756 i2c_core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc sky2 tg3 usbcore
> >  [264369.180541] Pid: 11776, comm: umount Not tainted 2.6.15-rc5 #1
> >  [264369.180544] RIP: 0010:[<ffffffff8015bdc7>] <ffffffff8015bdc7>{find_get_pages+87}
> >  [264369.180553] RSP: 0018:ffff81007d9d9c48  EFLAGS: 00010002
> >  [264369.180556] RAX: 000000000000086c RBX: 0000000000000002 RCX: ffff81007d9d9ce0
> >  [264369.180558] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000002
> >  [264369.180561] RBP: ffff81007d9d9c78 R08: 0000000000000000 R09: 0000000000000040
> >  [264369.180564] R10: ffff8100005ef4b0 R11: 0000000000000002 R12: 000000000000000e
> >  [264369.180567] R13: 0000000000000000 R14: ffff81007d9d9cd8 R15: ffff8100006cd6c0
> >  [264369.180571] FS:  00002aaaaaac5e80(0000) GS:ffffffff805ae800(0000) knlGS:0000000000000000
> >  [264369.180574] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> >  [264369.180577] CR2: 0000000000000001 CR3: 000000007c2d8000 CR4: 00000000000006e0
> >  [264369.180580] Process umount (pid: 11776, threadinfo ffff81007d9d8000, task ffff81005aa300c0)
> >  [264369.180583] Stack: ffff81007d9d9c58 ffff81007d9d9cc8 0000000000000000 ffff81007d9d9dc8 
> >  [264369.180588]        0000000000006fb4 ffff8100006cd6a8 ffff81007d9d9c98 ffffffff8016657f 
> >  [264369.180594]        0000000000000018 ffff8100006cd558 
> >  [264369.180597] Call Trace:<ffffffff8016657f>{pagevec_lookup+31} <ffffffff8016718c>{truncate_inode_pages+252}
> >  [264369.180611]        <ffffffff8019b21a>{dispose_list+90} <ffffffff8019b661>{invalidate_inodes+257}
> >  [264369.180624]        <ffffffff80185bfa>{generic_shutdown_super+154} <ffffffff80185d00>{kill_block_super+48}
> >  [264369.180635]        <ffffffff80185fbc>{deactivate_super+108} <ffffffff8019d468>{mntput_no_expire+88}
> >  [264369.180643]        <ffffffff8018d94d>{path_release_on_umount+29} <ffffffff8019e91f>{sys_umount+639}
> >  [264369.180651]        <ffffffff8010dd1e>{system_call+126} 
> 
> 
> Damn, that's a weird place to be oopsing.  NFS doesn't call
> kill_block_super(), so it might be a different fs.
> 
> Is it repeatable?

It doesn't appear to be repeatable.


-- 
Stephen Hemminger <[email protected]>
OSDL http://developer.osdl.org/~shemminger
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