Hi On Tue, Aug 7, 2018 at 2:55 PM, Gerd Hoffmann <kra...@redhat.com> wrote: > On Fri, Aug 03, 2018 at 05:32:35PM +0200, 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. > > I guess we should simply call vga_common_reset() in virtio_vga_reset() > instead, can you try that? > Yes I tried, and it still fails. However I think the call is missing and I was planning to send it for 3.1 later, since I don't think it's RC material. The ordering of events is not completely obvious to me, but it's still crashing/corrupting memory after the reset occurs. The scanout get's disable after it iirc.
-- Marc-André Lureau
