On Wed, May 22, 2013 at 03:51:47PM +1000, Dave Chinner wrote:
> > Tomorrow I'll also try running some older kernels with the same
> > options to see if it's something new, or an older bug. This is a
> > new machine, so it may be something that's been around for a
> > while, and for whatever reason, my other machines don't hit
> > this.
>
> Another thing that just occurred to me - what compiler are you
> using? We had a report last week on #xfs that xfsdump was failing
> with bad checksums because of link time optimisation (LTO) in
> gcc-4.8.0. When they turned that off, everything worked fine. So if
> you are using 4.8.0, perhaps trying a different compiler might be a
> good idea, too.
Yeah, this is 4.8.0. This box is running F19-beta.
I managed to shoehorn the gcc-4.7 from f18 on there though.
Bug reproduced instantly, so I think we can rule out compiler.
I ran 3.9 with the same debug options. Seems stable.
I'll do a bisect.
Dave
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
