Red Hat Bugzilla – Bug 113819
X frequently and randomly crashes
Last modified: 2007-11-30 17:10:35 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031114 Description of problem: X is frequently crashing/restarting. There does not seem to be anything that I am specifically doing to cause this. See attached logs. Version-Release number of selected component (if applicable): XFree86-4.3.0-42 How reproducible: Sometimes Steps to Reproduce: 1.Use X. 2. 3. Additional info:
Created attachment 97086 [details] XFree86 log
Created attachment 97087 [details] XF86Config
Created attachment 97088 [details] /var/log/messages
Can you include the complete output of /var/log/messages? The attached one appears trimmed down. It is useful to see the whole thing since the boot of the hung instance. Also include the output of "lsmod" from a running X session (prior to crashing). After doing that, try using the following in the device section of the config file: Option "noaccel" Does this option improve the stability at all? If so, we can explore some other troubleshooting directions to try and narrow the problem down further. TIA
Created attachment 97097 [details] /var/log/messages.1 That was the entire /var/log/messages. Here is /var/log/messages.1, hope this helps.
Created attachment 97098 [details] lsmod
OK, I've been running with the Option "noaccel" for 12 hours or so and so far I've had no crashes, whereas before I'm sure I would have had at least one. So that seems to have helped for the time being, other than X feeling very sluggish...
Ok, we can both narrow the problem down now, and also improve performance by doing the following: 1) Run "man XF86Config", and look at the various 'XaaNo.....' options listed. 2) Edit X config file, and comment out the noaccel option used previously. 3) Try the XaaNo options one at a time, and start up the X server between each change. Do whatever it was that triggered the crash previously, and try if possible to narrow things down to one or more XaaNo options that work around the problem. That will narrow the problem down to a specific codepath which is causing the problem, and I can then check XFree86 CVS for fixes in this area, and in the mean time disable the faulty codepath for this specific GPU. TIA
Since this bugzilla report was filed, there have been several major updates to the X Window System, which may resolve this issue. Users who have experienced this problem are encouraged to upgrade to the latest version of Fedora Core, which can be obtained from: If this issue turns out to still be reproduceable in the latest version of Fedora Core, please file a bug report in the X.Org bugzilla located at http://bugs.freedesktop.org in the "xorg" component. Once you've filed your bug report to X.Org, if you paste the new bug URL here, Red Hat will continue to track the issue in the centralized X.Org bug tracker, and will review any bug fixes that become available for consideration in future updates.