On 02/04/2014 01:49 AM, Robert Urban wrote:
On 02/03/2014 10:12 PM, Mike Larkin wrote:
I'd run with acpi debug enabled, try to see if we are dropping an event.
On a 5.4 test system I compiled a new generic MP kernel with option
ACPI_DEBUG
and booted it. I set up a serial console.
During boot there is a lot a ACPI debug output. I can make it available if
anyone would like to see it.
I then ran virsh shutdown guest. The guest froze without writing a single
character to the console.
I found this description in a RedHat bugzilla entry:
Gleb Natapov 2009-12-23 10:37:44 EST
I posted patch to provide correct PCI irq routing info in mptable to kvm
mailing list. It works for all devices except for SCI interrupt. BIOS
programs SCI interrupt to be 9 as spec requires, but OpenBSD thinks that
it is smarter and moves it to interrupts 10. Qemu will still send it on
vector 9 and OpenBSD will enter the same infinity recursion. This can
be triggered by issuing system_powerdown on qemu monitor.
the entry: https://bugzilla.redhat.com/show_bug.cgi?id=508801#c34
It sounds plausible.
There is a discussion about this on the KVM list:
http://www.spinics.net/lists/kvm/msg51563.html
I would be grateful if someone could have a look at this. I can make a OpenBSD
VM guest available.
Rob Urban
