https://bugs.freedesktop.org/show_bug.cgi?id=53130

Bug #: 53130 Summary: 99c65ba breaks rendering (flickery, eventual fail) Classification: Unclassified Product: Mesa Version: git Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: major Priority: medium Component: Drivers/Gallium/r600 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: bugspam@moreofthesa.me.uk

I noticed broken rendering in mesa git fairly recently.

In Unvanquished (current release), the effect with its GL3 renderer is that the display becomes more and more flickery, and eventually rendering apparently ceases; the game remains otherwise responsive. Its GL ('vanilla' renderer, much as in Tremulous) is unaffected.

Bisection points at the following commit; I've confirmed locally that git master with this reverted does not exhibit the broken behaviour.

commit 99c65bac341f808279a8a847158ace4f058aa72e Author: Marek Olšák maraeo@gmail.com Date: Sun Feb 26 20:37:43 2012 +0100

r600g: implement wait-free buffer transfer for DISCARD_RANGE

Reviewed-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Christian König christian.koenig@amd.com