On 08/03/2018 11:32 AM, Marc-André Lureau wrote:
With vga=775 on the Linux command line a first boot of the VM running
Linux works fine. After a warm reboot it crashes during Linux boot.

Before that, valgrind points out bad memory write to console
surface. The VGA code is not aware that virtio-gpu got a message
surface scanout when the display is disabled. Let's reset VGA graphic
mode when it is the case, so that a new display surface is created
when doing further VGA operations.

https://bugs.launchpad.net/qemu/+bug/1784900/

Reported-by: Stefan Berger <stef...@linux.vnet.ibm.com>
Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
Tested-by: Stefan Berger <stef...@linux.vnet.ibm.com>


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