On Sat, May 5, 2018 at 4:08 AM, Mike Lothian <m...@fireburn.co.uk> wrote: > I definately saw the steam bug with patch 1 but not with plasmashell, > I started seeing it with patch 2 but it seemed to fix itself >
I had two hangs of kwin_x11 within the last 6 hours when alt-tabbing between windows, where it got stuck in the loader_dri3_swapbuffer_barrier() from patch 1/2. Not sure how that is possible, or if the stacktrace was misleading, because i had to VT switch to a text console to attach the debugger and this might be just a side effect of that. But if it is true, then patch 1/2 would not be it. Also 1/2 has a potential performance impact, whereas 2/2 doesn't. However 2/2 would also need more work, as i can think of more complex scenarios where it would filter the wrong events, although not in the case of plasmashell or steam. Probably we'd need to sacrifice a few sbc bits in the Present events serial field to transport a unique tag for each incarnation of the loader_dri3_drawable, like a mini-hash of the draw->eid. Ugly ugly... -mario _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
