Saw intermittent segfault running GLBenchmark 3.0's Manhattan test. Narrowed issue down to writing outside the memory bounds of the texture when decompressing ETC2 data. Probably the root cause of bug 71002 (which has a nice repro) as well. See patch mesa-add-bounds-checking-to-eliminate-buffer-overrun on mesadev for more details.
manhattan has been working well, this was fixed: --- 8< --- commit cb4ad1368551b64756c7b6e2007588e34739b188 Author: Courtney Goeltzenleuchter <courtney@lunarg.com> Date: Tue Apr 8 09:10:09 2014 -0600 mesa: add bounds checking to eliminate buffer overrun Decompressing ETC2 textures was causing intermitent segfault by copying resulting 4x4 texel block to the destination texture regardless of the size of the destination texture. Issue found via application crash in GLBenchmark 3.0's Manhattan test. v2: add more detail comment. Compute limit outside inner loops. v3: add bugzilla reference v4: Correct cc syntax in commit log v5: really grab the right patch Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74988 Cc: "9.2 10.0 10.1" <mesa-stable@lists.freedesktop.org> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> [v1, suggested v2-3]
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.