Strange bug/crash of one OpenGL/SDL application on Linux

Hi everyone,

I have one 1.2.7-10 application that uses OpenGL via SDL/GL functions.

Here is the attached core-dump expand and happend randomly with apparent
no reason. I’ve attached the top-most function that does the

thread 1: #0 0xa7d3811c in X11_CheckMouseMode ()
from /usr/lib/
#1 0xa7c51acf in _XIOError (dpy=0xa7d5b900) at …/…/src/XlibInt.c:2911
#2 0xa7c4e6ec in _XFlushInt (dpy=0x8bbc138, cv=0x8bbca30)
at …/…/src/XlibInt.c:688
#3 0xa7c4fd0d in _XReply (dpy=0x8bbc138, rep=0xa4f97a30, extra=0,
discard=0) at …/…/src/XlibInt.c:1692
#4 0xa7e977eb in XRecordEnableContext (dpy=0x8bbc138,
XRecordInterceptData*)>, closure=0x8b8b210 “\020?#\b??)\b”)
at …/…/src/XRecord.c:871

Everything works under the composite extension and the application is
composite ready (using xcompmgr) but I don’t know how much matters that
to solve.

It is a known bug? What it should be done to avoid the crush?

Thanks in advance for who will look and probably’ll answer,
Ciprian M.
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