(qemu-devel CC'd) On 08/28/13 12:35, Gary Ching-Pang Lin wrote: > Hi, > > I recently updated qemu to 1.6.0 and found OVMF just showed a blank > screen when kvm was enabled. I tried to dump OVMF log with the > following commond but nothing was stored in debug.log. > > qemu-system-x86_64 -s -enable-kvm -bios OVMF.fd -debugcon file:debug.log > -global isa-debugcon.iobase=0x402 > > The kvm trace was recorded with "trace-cmd record -b 20000 -e kvm" > and uploaded to the following link: > https://docs.google.com/file/d/0B9hbtlc_aK_gcGh2TDZLUVlzWWc/edit?usp=sharing > > I found a similar case with kernel < 3.9, but I already upgraded linux > kernel to 3.10.5, so this may be another bug.
Well, the usual first response in cases like this is... Can you bisect qemu? :) Laszlo