On Wed, Dec 02, 2015 at 12:14:56PM -0500, Chris Mason wrote:
> On Wed, Dec 02, 2015 at 11:09:43AM -0500, Dave Jones wrote:
> > On Wed, Dec 02, 2015 at 10:11:28AM -0500, Josef Bacik wrote:
> > > On 12/02/2015 09:59 AM, Dave Jones wrote:
> > > > Got a few of these in the logs this morning after an overnight rsync
> > over nfs
> > > > to an exported btrfs volume.
> > >
> > > That's probably us and not NFS, what line is that in
> > > setup_cluster_bitmap? Thanks,
> >
> > If my math is correct, it's this..
> >
> > if (entry->offset != bitmap_offset)
> >
> > I don't seem to be able to trigger it on demand unfortunatly.
>
> Is it possible we're blowing the stack? It seems pretty tricky to get a
> stack out of bounds out of this code without flat out blowing through
> it.
Hm, there is a lot of debug crap on the stack from lockdep etc, though I didn't
get any warnings from the other stack overflow checks.
Dave
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