Re: [Xen-devel] [TestDay] Xen crash on boot

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 21.01.14 at 11:39, "Eric Houby" <ehouby@xxxxxxxxx> wrote:
> Xen console logs are attached.

Thanks. This

(XEN) ..MP-BIOS bug: 8254 timer not connected to IO-APIC
(XEN) ...trying to set up timer (IRQ0) through the 8259A ...  failed.
(XEN) ...trying to set up timer as Virtual Wire IRQ... works.

is the first thing you need to deal with. You may want to check
how a native kernel handles that (they have some DMI based
stuff in place to automatically deal with broken firmware, which
on Xen requires command line overrides like
"acpi_skip_timer_override").

That alone may already explain

(XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0xa0, fault address = 
0xfdf8010140, flags = 0x8

since these come from the HPET (which may be generating legacy
timer interrupts):

(XEN) AMD-Vi: IVHD Special: 0000:00:14.0 variety 0x2 handle 0

The final crash could easily be a consequence of the earlier
problems. In any event you ought to make sure you run up to
date firmware on your system, as there clearly are issues with it.

What would also be interesting to know is whether any older Xen
version ever booted okay on that system.

Jan


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