Re: KVM-58 -- existing VM just hangs with black screen

Avi Kivity
2008-01-02T12:11:46Z

Richard W.M. Jones wrote:
> I've just got an upgrade to KVM-58 as part of the latest Fedora.
>
> Unfortunately my existing VM (a Windows 2008 Server instance) no
> longer boots. In fact it hardly gets anywhere at all. Immediately
> after running qemu-kvm, I just get a black screen (no BIOS/boot
> messages at all) and using 100% of CPU.
>
> No kernel messages. 'strace' indicates that qemu-kvm is doing a lot
> of stuff (issuing lots of ioctl, gettimeofday, etc.).
>
> I can get to the qemu monitor. Are there any useful commands to issue?
>
> 'info blockstats' shows a single 512 byte read from ide-hd0,
> presumably it has read the boot sector but for some reason cannot boot
> from it.
>
> Any ideas on what I can do to debug this further?

Can you identify which version of kvm introduced the regression?

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