Messages in this thread | | | Date | Fri, 8 Mar 2013 23:39:12 -0500 | From | Dave Jones <> | Subject | Re: BUG_ON(nd->inode != parent->d_inode); |
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On Fri, Mar 08, 2013 at 08:31:48PM -0800, Linus Torvalds wrote: > On Fri, Mar 8, 2013 at 7:50 PM, Dave Jones <davej@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
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