On Mon, 25 Dec 2006 16:56:16 -0600
[email protected] (Florin Iucha) wrote:
> > The dmesg from the client machine is attached.
>
> Now, really.
>
> BTW, I am using NFSv4 exported async from the server and mounted
> without any extra options on the client.
>
> florin
>
> --
> Bruce Schneier expects the Spanish Inquisition.
> http://geekz.co.uk/schneierfacts/fact/163
>
>
> [the_oops text/plain (9.9KB)]
> [ 2844.871895] BUG: scheduling while atomic: cp/0x20000000/2965
> [ 2844.871900]
> [ 2844.871901] Call Trace:
> [ 2844.871910] [<ffffffff8015b97d>] __sched_text_start+0x5d/0x7a6
> [ 2844.871914] [<ffffffff8012f6b0>] submit_bio+0x84/0x8b
> [ 2844.871918] [<ffffffff801f8ea6>] ext3_get_block+0x0/0xe4
> [ 2844.871922] [<ffffffff80112933>] __pagevec_lru_add+0xb6/0xc6
> [ 2844.871927] [<ffffffff801c02f0>] mpage_bio_submit+0x22/0x26
> [ 2844.871931] [<ffffffff8012cb30>] unix_poll+0x0/0xa4
> [ 2844.871936] [<ffffffff8017d801>] __cond_resched+0x1c/0x44
> [ 2844.871940] [<ffffffff8015c1d0>] cond_resched+0x29/0x30
> [ 2844.871943] [<ffffffff8015dd92>] __reacquire_kernel_lock+0x26/0x44
> [ 2844.871948] [<ffffffff8015c169>] thread_return+0xa3/0xe1
> [ 2844.871953] [<ffffffff80116664>] unlock_page+0x9/0x26
> [ 2844.871957] [<ffffffff8017d801>] __cond_resched+0x1c/0x44
> [ 2844.871961] [<ffffffff8015c1d0>] cond_resched+0x29/0x30
> [ 2844.871965] [<ffffffff8019e8b6>] generic_writepages+0x113/0x2d8
> [ 2844.871970] [<ffffffff8022771c>] nfs_writepage+0x0/0x22
> [ 2844.871976] [<ffffffff802280ff>] nfs_writepages+0x45/0x13c
> [ 2844.871980] [<ffffffff801536e6>] do_writepages+0x20/0x2d
> [ 2844.871984] [<ffffffff801487be>] __filemap_fdatawrite_range+0x51/0x5b
> [ 2844.871989] [<ffffffff8019ca9b>] filemap_write_and_wait+0x17/0x31
> [ 2844.871993] [<ffffffff80220948>] nfs_setattr+0x98/0x108
> [ 2844.871996] [<ffffffff80129c6e>] mntput_no_expire+0x19/0x7b
> [ 2844.872000] [<ffffffff8010dab9>] link_path_walk+0xc5/0xd7
> [ 2844.872005] [<ffffffff8010d340>] current_fs_time+0x3b/0x40
> [ 2844.872009] [<ffffffff80129b48>] notify_change+0x122/0x22f
> [ 2844.872014] [<ffffffff801bb806>] do_utimes+0x106/0x129
> [ 2844.872019] [<ffffffff8010ac5b>] vfs_read+0xaa/0x152
> [ 2844.872023] [<ffffffff801bb865>] sys_futimesat+0x3c/0x4b
> [ 2844.872027] [<ffffffff8015671e>] system_call+0x7e/0x83
> [ 2844.872030]
This is the second report we've had where bit 29 of ->preempt_count is
getting set. I don't think there's any legitimate way in which that bit
can get set. (Ingo?)
I'd suggested that the first report (which was in i386 iirc) was due to
memory corruption (hardware or software). And this might also be a
hardware error, but that's looking pretty unlikely now.
If this is real, it's going to be hard to find, unless someone finds a
way to make it happen with some repeatability.
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