Bugzilla – Bug 32261
Deadlock in _XReply and XNextEvent
Last modified: 2011-03-14 17:39:22 UTC
I am having an multi-thread application which hangs after I upgrade to FC14. There is one thread consistently calling XNextEvent for X Window event; while another thread needs to communicate with X Server for some operation on the X Display which will wait for _XReply. Deadlock seems to be happens in the xlib/xcb library in this situation.
The version of xlib and xcb are:
I try to upgrade to libX11-1.4.0 but this issue still occurs. However, the application has no problem after I downgrade to libX11-1.3.3.
Discussed previously here: http://lists.freedesktop.org/archives/xcb/2010-December/006655.html.
*** This bug has been marked as a duplicate of bug 30450 ***