Re: btrfs io errors on 3.4rc1

[Dave Jones <davej@redhat.com>]

On Mon, Apr 02, 2012 at 06:39:19PM -0400, Chris Mason wrote:
 > On Mon, Apr 02, 2012 at 06:33:50PM -0400, Dave Jones wrote:
 > > On Mon, Apr 02, 2012 at 06:28:02PM -0400, Chris Mason wrote:
 > >  
 > >  > > x86-64.
 > >  > > 
 > >  > > dmesg below.  (ignore the rpc oops, reported elsewhere, it's unrelated)
 > >  > 
 > >  > Well, there really are no btrfs messages in there at all.  Do you have
 > >  > free space for a clean copy of the btrfs partition?  Trying to figure
 > >  > out if you have a stale corruption (on two boxes seems really unlikely).
 > >  > I definitely can't reproduce it here.
 > > 
 > > Don't really have any free space for it (It's the / partition on both)
 > > 
 > > Is there a wip btrfs.fsck yet ? One of the machines is just a scratch testbox,
 > > so I'm happy to run it even if it'll potentially make things worse.
 > 
 > The current btrfsck repair mode will fix problems in the extent
 > allocation tree, but that probably isn't what you're seeing.  I'd just
 > run it read only and see if it finds any problems.
 > 
 > (You'll need the FS completely unmounted though).

I'll start a bisect later to see if I can narrow it down at least.

	Dave