Re: btrfs stability

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On Sat, Jan 26, 2013 at 01:27:11PM -0700, Andrew McNabb wrote:
> Here's an update.  I tried the new kernel, and I seem to be having some
> new (possibly worse problems.  In my ssh session, I'm seeing many errors
> of this sort:
> 
> Message from syslogd@guru at Jan 26 13:13:14 ...
>  kernel:[  308.223834] BUG: soft lockup - CPU#0 stuck for 23s!
>  [btrfs-endio-wri:2073]
> 
> Message from syslogd@guru at Jan 26 13:13:14 ...
>  kernel:[  308.248754] BUG: soft lockup - CPU#2 stuck for 23s!
>  [btrfs-delalloc-:594]
> 
> In the logs, I'm seeing several warnings and bugs, including:
> 
> WARNING: at fs/btrfs/extent_map.c:78 free_extent_map+0x79/0x90 [btrfs]()
> WARNING: at lib/list_debug.c:62 __list_del_entry+0x82/0xd0()
> BUG: unable to handle kernel NULL pointer dereference at     (null)
> BUG: soft lockup - CPU#0 stuck for 22s! [btrfs-endio-wri:1489]
> BUG: soft lockup - CPU#1 stuck for 22s! [btrfs-delalloc-:607]
> 
> Kernel logs (across a few reboots) are at:
> 
> http://students.cs.byu.edu/~amcnabb/messages2
> 

Hrm well I didn't expect that.  I will look into this and see what I can come up
with.  Thanks,

Josef
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