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
