On Tue, Apr 1, 2014 at 3:09 PM, Andy Lutomirski luto@amacapital.net wrote:

Running:

./virtme-run --installed-kernel

from this virtme commit:

https://git.kernel.org/cgit/utils/kernel/virtme/virtme.git/commit/?id=2b409a...

results in a bunch of missing lines of text once bootup finishes. Pressing enter a few times gradually fixes it.

I don't know whether this is a qemu bug or a Linux bug.

I'm seeing this on Fedora's 3.13.7 kernel and on a fairly recent 3.14-rc kernel. For the latter, cirrus is built-in (not a module), I'm running:

virtme-run --kimg arch/x86/boot/bzImage

and I see more profound corruption.

I'm guessing this is a cirrus drm bug. bochs-drm (using virtme-run --installed-kernel --qemu-opts -vga std) does not appear to have the same issue. Neither does qxl.

(qxl is painfully slow, though, and it doesn't seem to be using UC memory.)

--Andy