On Thu, Jun 06, 2013 at 02:10:39PM +0200, Stefan Pietsch wrote: > On 06.06.2013 13:40, Gleb Natapov wrote: > > On Thu, Jun 06, 2013 at 01:35:13PM +0200, Stefan Pietsch wrote: > > >> I had no success with the Debian kernel 3.10~rc4-1~exp1 (3.10-rc4-686-pae). > >> > >> The machine hangs after "Enabling APIC mode: Flat. Using 1 I/O APICs". > > OK, since it looks like it hangs during timer initialization can you try > > to disable kvmclock? Add -cpu qemu64,-kvmclock to your command line. > > Also can you provide the output of "cat /proc/cpuinfo" on your host? And > > complete serial output before hang. > > > command line: > qemu-system-i386 -machine accel=kvm -m 512 -cpu qemu64,-kvmclock -cdrom > grml32-full_2013.02.iso -serial file:ttyS0.log > > > ttyS0.log: > ########## > Nothing out of ordinary here. Since you can reproduce the hang and I cannot, can you try and bisect it? Also can trace kvm during the hang http://www.linux-kvm.org/page/Tracing? Start the trace as close to hang as possible and stop it as quick after it as possible too to make trace file smaller. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html