https://bugs.freedesktop.org/show_bug.cgi?id=79338
Priority: medium Bug ID: 79338 Assignee: dri-devel@lists.freedesktop.org Summary: Something's broken after llvm's svn commit 209067 Severity: normal Classification: Unclassified OS: All Reporter: j.suarez.agapito@gmail.com Hardware: Other Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
Something seems to have been broken in llvm 3.5 after svn revision 209067.
What I am experiencing is that the system is stable for desktop usage but after a few minutes from launching a game (I have tried with CKII, Witcher 2, Watelands 2, Cities in motion, Deadfall Adventures and Serious Sam 3) or just after a few seconds after exiting the game the desktop freezes, the screen goes black (can't switch to vt to kill the game/desktop session) and the system becomes unresponsive. I'm afraid I cannot obtain a dmesg log due to that unresponsiveness.
If a dmesg log is needed to know the system's specs, the following attachement of another bug report may be of use: https://bugs.freedesktop.org/attachment.cgi?id=97787
I am using a llvm ppa to install llvm 3.5 git. I've tried to compile llvm with no luck, so I cannot bisect. However, I still have in /var/cache/apt/archives the deb packages for svn revisions 209564, 209581 and 209600 and those revisions hang the system in the way described above. So judging by the R600 llvm backend activity (https://github.com/llvm-mirror/llvm/commits/master/lib/Target/R600) and my experience with those svn .deb packages I still have in the apt cache, it seems the culprit must be a commit after 16 May.