On 03/17/13 19:27, Michael S. Tsirkin wrote:
With seabios built from source, and latest qemu, VMs hang during boot for me. Bisect points at this commit: 76e58028d28e78431f9de3cee0b3c88d807fa39d
Reverting this helps. Guest is stuck quite late, after 'switching root' message, so this could be just an OS visible change that it can't handle. Didn't try debugging more yet.
Make sure dsdt + seabios are in sync. latest bios.bin + dsdt from qemu tree isn't going to work.
With qemu/master (4524051c32190c1dc13ec2ccd122fd120dbed736+) you can simply use 'qemu -L /path/to/seabios/out' and qemu will pick up both bios.bin and dsdt tables from the seabios build output dir (and everything it doesn't find there such as vgabios blobs from the default paths).
cheers, Gerd