Re: 2.6.18 ext3 panic.

Andrew Morton
2006-10-03T06:23:31Z

On Tue, 03 Oct 2006 00:43:01 -0500
Eric Sandeen <sandeen@sandeen.net> wrote:

> Dave Jones wrote:
>
> > So I managed to reproduce it with an 'fsx foo' and a
> > 'fsstress -d . -r -n 100000 -p 20 -r'. This time I grabbed it from
> > a vanilla 2.6.18 with none of the Fedora patches..
> >
> > I'll give 2.6.18-git a try next.
> >
> > Dave
> >
> > ----------- [cut here ] --------- [please bite here ] ---------
> > Kernel BUG at fs/buffer.c:2791
>
> I had thought/hoped that this was fixed by Jan's patch at
> http://lkml.org/lkml/2006/9/7/236 from the thread started at
> http://lkml.org/lkml/2006/9/1/149, but it seems maybe not. Dave hit this bug
> first by going through that new codepath....

Yes, Jan's patch is supposed to fix that !buffer_mapped() assertion. iirc,
Badari was hitting that BUG and was able to confirm that Jan's patch
(3998b9301d3d55be8373add22b6bc5e11c1d9b71 in post-2.6.18 mainline) fixed
it.