On 13/03/17 21:25, Mark Cave-Ayland wrote: > I've recently noticed some video artifacts appearing in the form of > horizontal lines whilst testing OpenBIOS boot on some qemu-system-ppc > images (see https://www.ilande.co.uk/tmp/qemu/macos9-stripe.png for an > example) which I've finally bisected down to this commit. > > The horizontal lines tend to appear at different positions with > different lengths, although it seems to be more common that a complete > scanline is affected. Reproducing the issue is fairly easy with a MacOS > 9.2.1 ISO and the command line below: > > ./qemu-system-ppc -cdrom MacOS921.iso -boot d -m 512 -M mac99 > > Could it be that this patch is still missing a lock somewhere which > causes these artifacts to appear?
(Apologies - resending as forgot to add CCs for qemu-devel and qemu-ppc) ATB, Mark.
