Re: [Xen-devel] [Xen-deve] xen/stable-2.6.32.x bare-metal: panic early exception 0e rip 10:0 error 10 cr2 0

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Sep 02, 2011 at 12:44:31AM +0100, M A Young wrote:
> 
> 
> On Thu, 1 Sep 2011, Jeremy Fitzhardinge wrote:
> 
> >On 09/01/2011 02:29 PM, M A Young wrote:
> >>On Wed, 31 Aug 2011, M A Young wrote:
> >>
> >>>On Fri, 19 Aug 2011, Andreas Olsowski wrote:
> >>>
> >>>>Source:
> >>>>git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
> >>>>
> >>>>Tested branches:
> >>>>xen/stable-2.6.32.x
> >>>>xen/next-2.6.32.x
> >>>>
> >>>>When trying to boot the current kernel bare-metal it will not load
> >>>>properly, instead i am prompted with:
> >>>>
> >>>>panic early exception 0e rip 10:0 error 10 cr2 0
> >>>
> >>>I am seeing this as well. I have been trying to narrow it down a bit,
> >>>and it seems to me that the bug was introduced somewhere between
> >>>xen-2.6.32.39 and xen-2.6.32.42.
> >>
> >>xen-2.6.32.40 also crashes. I think that means that it is either
> >>commits c3dd7941354fa96a71f2613e2c7a1b215fa175dc or
> >>280802657fb95c52bb5a35d43fea60351883b2af (or something in the stable
> >>kernel or else compile differences though both are unlikely). I am
> >>still working on this to confirm which patch it is.
> >
> >280802657fb95c5 is unlikely - that's just a blkback change.
> >
> >c3dd7941354fa96 looks plausible.
> 
> Yes, xen-2.6.32.40 with c3dd7941354fa96a71f2613e2c7a1b215fa175dc
> reverted will boot on bare metal.

<smacks his head> bare metal. Yes, it won't work under that - at least
not in that state.

Jeremy, can you revert that patch please - it was fixing one instance
of machines - and it looks to be breaking many more.

Grrrrrr

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