Blender 2.66 crashes
Blender 2.66 (stable release but not available on repositories) crashes with following errors-
[xcb] Unknown request in queue while dequeuing [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called [xcb] Aborting, sorry about that. blender: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed. Aborted (core dumped)
Sometimes, it occurs when running some 3d animation like cloth simulation and changing some setting in the gui. (Could be random!)
same blender build does not crashes with virtualgl.