Messages in this thread | | | Subject | Re: 2.6.30-rc8 Oops whilst booting | From | James Bottomley <> | Date | Mon, 08 Jun 2009 16:51:19 +0000 |
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On Mon, 2009-06-08 at 09:21 -0700, Linus Torvalds wrote: > > On Mon, 8 Jun 2009, Chris Clayton wrote: > > > > OK. I reversed that change and built and installed the kernel. It has > > withstood 100 reboots without a panic. Additionally, I pulled the > > latest changes (that will be rc8-git5, I think) from kernel.org, > > reversed the change to that kernel and built and installed it. That > > too withstood 100 reboots without a panic. > > > > Let me know if there's anything else I can do to help fix this. > > That's already pretty convincing. > > James, Arjan? The original oops message is here (a jpg screen capture, > unable to open initial console): > > http://lkml.org/lkml/2009/6/6/142 > > and it's this bug entry: > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13474 > Subject : Oops whilst booting > Submitter : Chris Clayton <chris2553@googlemail.com> > Date : 2009-06-06 18:59 (2 days old) > References : http://marc.info/?l=linux-kernel&m=124431487924254&w=4 > > and now bisected down to > > >> commit d5a877e8dd409d8c702986d06485c374b705d340 > >> Author: James Bottomley <James.Bottomley@HansenPartnership.com> > >> Date: Sun May 24 13:03:43 2009 -0700 > >> > >> async: make sure independent async domains can't accidentally entangle > > please advice. Otherwise I'll have to revert.
The root cause is a reordering of the devices caused by the async code.
I suspect it's a bug in async that was obscured by the old behaviour of async_synchronize.. (or it's a bug in the new code) ... how long do I have to find out which?
James
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