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xen-devel
Re: [Xen-devel] x86_64 smp kernel panic
> Stephen C. Tweedie wrote:
> > Hi,
> >
> > On Fri, 2006-02-03 at 09:44 -0600, Ryan Grimm wrote:
> >
> >> I tried the patch you pointed out but still get the same result. I
> >> turned off 'detect_soft_lockups', and get the message below.
> >
> > I'm also completely unable to get x86_64 to work at all from any tree
> > with CONFIG_SMP set. I get a cpu_up notifier chain panic if
> > CONFIG_HOTPLUG_CPU is not set; with CONFIG_HOTPLUG_CPU=y, it doesn't
> > even compile. Replacing one missing function in setup64-xen.c fixes
> > that for dom0 but domU is more complex.
> >
> > If nobody's working on this, I'll take a stab at trying to sort things
> > out so that at least one config set works for x86_64 SMP. It's
> > really a rather important use case!
> >
> > --Stephen
> >
> >
>
> Restoring x86_64 SMP is high priority, and you should be very welcome.
> Please take a look at Christian's latest fix 8775; it may have fixed
> that. I'm working on other things now.
I can confirm that 8775 fixes SMP dom0 on 64 for me (the main problem
was the cpu_possible_map which is why CONFIG_HOTPLUG_CPU worked - it
prefills the possible_map to NR_CPUs)
cheers,
S.
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