On Fri, 2018-05-04 at 15:45 +0200, Mario Kleiner wrote: > The real problem, if i understand it correctly, is the way the life-time > of dri3_drawables and loader_dri3_drawables is managed atm. by Mesa's > bindContext() functions. Whenever glXMakeCurrent() etc. are called to > assign new/different GLXDrawables to the same context (ie. one context > reused for drawing into many different drawables, as opposed to using > one dedicated context for each drawable), we destroy the underlying > DRIDrawables/dri3_drawables_loader_dri3_drawables and they lose all > state wrt. pending bufferswaps, msc, sbc, ust.
That's utterly, utterly, utterly broken. > Therefore one of these patches is either a good enough fix for the KDE > hang problems atm. or a diagnosis of the problem as a starting point for > brighter people to deal with the root cause ;-) I'll see what I can come up with. I'm not sure there's a great fix for this that doesn't involve a few more roundtrips at MakeCurrent time, since we can lose drawables asynchronously, but such is life. - ajax _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
