Re: [bisected] 2.6.31 regression: fails to boot as xen guest

From: Pekka Enberg
Date: Tue Aug 25 2009 - 14:14:39 EST


On Tue, 2009-08-25 at 11:06 -0700, Jeremy Fitzhardinge wrote:
> On 08/25/09 09:52, Pekka Enberg wrote:
> > Hi Arnd,
> >
> > On Tue, 2009-08-25 at 18:49 +0200, Arnd Hannemann wrote:
> >
> >>> Thanks for doing the bisect! Can we also see your .config also?
> >>>
> >> Config for -rc7 is attached. My bisect configs were based on that
> >>
> > Thanks! While we wait for the Xen people, you can try the following
> > patch to see if we can narrow the bug down to trap_init().
> >
>
> I think there's a problem that the side-effect of this change is that
> interrupt initialization comes later, and so the dynamically allocated
> arrays are not set up when the first interrupt comes in.

Which interrupt initialization is that? We call trap_init() _earlier_
now.

> However, this particular change shouldn't have any effect on interrupts
> being enabled early, right?

Yeah, interrupt enabling should not be affected.

Pekka

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