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Re: [Xen-devel] [BUG] panic: "IO-APIC + timer doesn't work" - several people have reproduced
- To: Aaron Janse <aaron@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 31 Dec 2019 08:27:42 +0000
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- Delivery-date: Tue, 31 Dec 2019 08:28:12 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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On 31/12/2019 07:52, Aaron Janse wrote:
> Hello all,
>
> After attempting to install QubesOS on a new laptop, I've stumbled upon
> a group of people with an assortment of laptops but all the same
> problem: a Xen panic stating "IO-APIC + timer doesn't work!"
>
> Many of us are on different stages of debugging this, so I'll cite all
> our efforts here.
>
<snip>
> # Excerpts from boot logs
>
> Qubes on my XPS 7390 13"
>
> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
> (XEN) ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> (XEN) ...trying to set up timer (IRQ0) through 8259A ,,,
> (XEN) ...trying to set up timer as Virtual Wire IRQ... failed.
> (XEN) ...trying to set up timer as ExtINT IRQ...spurious 8259A interrupt:
> IRQ7.
> (XEN) CPU0: no irq handler for vector e7 (IRQ -8)
> (XEN) IRQ7 a=0001[0001,0000] v=60[ffffffff] t=IO-APIC-edge s=00000002
> (XEN) failed :(.
> (XEN)
> (XEN) ***************************************
> (XEN) Panic on CPU 0:
> (XEN) IO-APIC + timer doesn't work! Boot with apic_verbosity=debug and
> send a report. Then try booting with the 'noapic' option
> (XEN) ***************************************
Is there any full boot log in the bad case? Debugging via divination
isn't an effective way to get things done.
(Irrespective, I'm pretty sure this is a Grub2+EFI issue failing to pass
the ACPI tables to Xen, and this eventual panic is just cascade fallout.)
~Andrew
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