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xen-devel
RE: [Xen-devel] can't boot upstream kernel in PV guest with recent xen t
> > Is it possible some bug fix was recently applied into
> > all three xen trees that creates or exposes a problem
> > in upstream kernels built with certain CONFIG_ options
> > booting in PV guests? (I've also attached the config
> > file used to build the 2.6.32 kernel that panic'ed.)
> >
> > Or hopefully someone will find this familiar or
> > reproducible and can suggest an answer? I'm dead
> > in the water on one of my activities until I can
> > get an upstream kernel booting in a PV guest
>
> Try 4.0.0 release. I'm sure people have been booting pv_ops kernels
> with
> that okay. I think this problem is somehow specific to your test
> machine.
Thanks for the reply!
After much teeth-gnashing and hair-pulling, I think I figured
out the problem -- though not yet a full solution. When I
follow the exact build process and use the same config file
to boot an upstream kernel in a *64-bit* VM, it panics
every time (including on 4.0.0). On a *32-bit* VM,
it boots fine every time.
I suspect that I have never (before last week) attempted
to build/boot an upstream kernel in a 64-bit VM. I further
suspect that there is something in the config file
that I am using (possibly something annoyingly stupid)
that doesn't cause a 64-bit *build* to fail but
does cause the 64-bit boot to fail.
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