Re: Frame buffer corruptions with KVM >= 2.6.36

Avi Kivity
2010-10-14T12:05:02Z

On 10/14/2010 09:27 AM, Jan Kiszka wrote:
> Hi,
>
> I'm seeing quite frequent corruptions of the VESA frame buffer with
> Linux guests (vga=0x317) that are starting with KVM kernel modules of
> upcoming 2.6.36 (I'm currently running -rc7). Effects disappears when
> downgrading to kvm-kmod-2.6.35.6. Will see if I can bisect later, but
> maybe someone already has an idea or wants to reproduce (just run
> something like "find /" on one text console and witch to another one -
> text fragments will remain on the screen on every few switches).
>

Reproduces on kvm.git. I wonder what's going on.

Looks like vesafb uses the bios to switch the display start, so I expect
a problem in qemu reacting to this.

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error compiling committee.c: too many arguments to function