Red Hat Bugzilla – Bug 209338
compiz segfaults xserver on radeon with exa enabled
Last modified: 2007-11-30 17:11:45 EST
Description of problem: When i start compiz (either command-line or via desktop-effects) and have the line Option "AccelMethod" "EXA" in my xorg.conf Xorg segfaults. When i remove the offending option, compiz runs fine. This all was working fine around the FC6Test2 time, however i havent followed development close, so i cant say when it broke. When Xorg segfaults i get the following in my dmesg: kernel: Xorg[4065] general protection rip:2aaaaaabeb9c rsp:e87a2949a36315fe error:0 The closest thing searching the web and bugzilla which sounds similiar to my problem is in the xorg-ml, however i havent found an follow-up to this post: http://lists.freedesktop.org/archives/xorg/2006-September/017911.html Version-Release number of selected component (if applicable): uptodate fc6-rawhide sys (as of 10/04/06) How reproducible: always Steps to Reproduce: 1. change AccelMethod to EXA 2. start compiz, either manually or via desktop-effects 3. watch the crash Actual results: Xorg crashes Expected results: Xorg should not crash Additional info: System info: Amila1667g Notebook Turion64 ML-34 ATI X700 PCIe Mobility FC-6 Rawhide cheers Jan
I rebuild xorg-x11-server-Xorg-1.1.1-47, but commented out patch #107 (xorg-x11-server-1.1.1-offscreen-pixmaps.patch). Now compiz wont segfault Xorg when EXA is enabled, everything is fine. The patch was added on August, 7th. This was the time when FC6test2 was new and i had no problems. So could someone explain me what this patch does, and why it is needed (as it breaks exa, at least on my x700). cheers Jan
Yes, compiz and EXA aren't compatible, the offscreen-pixmaps patch is XAA specific. Right now the solution is "don't use EXA", and with compiz EXA vs XAA doesn't make a difference anyway. There's should be more graceful error handling, sure, or maybe we should just make it work with EXA.
Thank you for the info, Kristian. What is the purpose of the offscreen-pixmaps patch ? Could it be possible to document this behaviour (it took me some time to find out, that the EXA option is to blame for the crashes is experienced with compiz) ? Thank you anyway for the good work. cheers Jan
Fedora Core 5 and Fedora Core 6 are, as we're sure you've noticed, no longer test releases. We're cleaning up the bug database and making sure important bug reports filed against these test releases don't get lost. It would be helpful if you could test this issue with a released version of Fedora or with the latest development / test release. Thanks for your help and for your patience. [This is a bulk message for all open FC5/FC6 test release bugs. I'm adding myself to the CC list for each bug, so I'll see any comments you make after this and do my best to make sure every issue gets proper attention.]
Even after almost three months there has been no activity on these bugs, so we consider them obsolete and they are being closed as INSUFFICIENT_DATA. Please, if you are able to reproduce this bug on currently supported (FC6 and F7) non-test distribution, or if there is any other reason why this bug should be kept alive, please, reopen, change the product to something more recent and add an additional information to the comment of such bug. Thank you very much.