Hi Michel, On 28 August 2017 at 10:23, Michel Dänzer <michel at daenzer.net> wrote: > From: Michel Dänzer <michel.daenzer at amd.com> > > And destroy all other FBs. This is so that other DRM masters can only > get access to this all-black FB, not to any other FB we created, while > we're switched away and not DRM master. > Isn't the issue applicable overall - be that in X, wayland compositors, other? IIRC the vmwgfx's kernel driver, which has extra locking [1] in order to address that. Would a similar approach like that be applicable for radeon/amdgpu? I'm not saying that this is bad/not needed. Just wondering on a "perfect" long term solution. That is, unless I've lost the plot and the two are completely unrelated. Thanks Emil https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c?h=v4.13-rc7#n1054
