On Fri, Mar 08, 2013 at 08:31:48PM -0800, Linus Torvalds wrote:
> On Fri, Mar 8, 2013 at 7:50 PM, Dave Jones <da...@redhat.com> wrote:
> > > >
> > > > I have a feeling there were some sysfs ones that may still be unfixed.
> >
> > I was right..
> >
> > [ 425.836722] general protection fault: 0000 [#1] PREEMPT SMP
>
> You forgot to enable DEBUG_PAGE_ALLOC again, but I don't think it much
> matters. It's another slab free poison thing.
>
> The faulting instruction is
>
> mov 0x28(%rbx),%ecx
>
> with %rbx having the value 6b6b6b6b6b6b6b6b.
>
> > [ 425.847859] RIP: 0010:[<ffffffff8123f657>] [<ffffffff8123f657>]
> > sysfs_find_dirent+0x47/0xf0
>
> That seems to be
>
> if (hash != sd->s_hash)
>
> from sysfs_name_compare() that has been inlined into
> sysfs_find_dirent(). And where "sd" is the corrupted value. If I read
> things right.
>
> So it looks like the sysfs rbtree is corrupted or something. Adding
> Greg to the cc.
oh , that rings a bell. ISTR this had something to do with Sasha's idr changes.
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/
