ubuntu-x-swat team mailing list archive

[Bryce Harrington <bryce@xxxxxxxxxxxxx>]

On Sat, Aug 29, 2009 at 11:03:40AM -0000, Kai Jauch wrote:
> [60000.692319] Call Trace:
> [60000.692339]  [<ffffffff8151f2a7>] __mutex_lock_slowpath+0xd7/0x160

That indicates what you experienced was likely a "GPU Lockup", or 
"X Freeze" more commonly.  Next time it happens, try to get a
batchbuffer dump, as that is what's needed for analyzing this type of
issue.  For more info see
http://wiki.ubuntu.com/X/Troubleshooting/Freeze.