Hi, When resizing a java application which uses Java's OpenGL backend, I get the attached crash. How to reproduce: 1. Install OpenJDK-6-jre + openjdk-6-jdk 2. run jconsole -J-Dsun.java2d.opengl=True 3. resize the window I used mesa shipped with fedora-15 + updates. dri2InvalidateBuffers (dpy=<optimized out>, drawable=<optimized out>) at dri2_glx.c:682 682 if (pdraw && psc->f && psc->f->base.version >= 3 && psc->f->invalidate) (gdb) bt #0 dri2InvalidateBuffers (dpy=<optimized out>, drawable=<optimized out>) at dri2_glx.c:682 #1 0x00007f7415a1b541 in DRI2WireToEvent (dpy=0x7f74341d13a0, event=0x7f73ec011358, wire=0x7f73ec00eac0) at dri2.c:136 #2 0x00000038d4248231 in _XEnq () from /usr/lib64/libX11.so.6 #3 0x00000038d4245003 in ?? () from /usr/lib64/libX11.so.6 #4 0x00000038d4245a35 in _XEventsQueued () from /usr/lib64/libX11.so.6 #5 0x00000038d42364ff in XEventsQueued () from /usr/lib64/libX11.so.6 #6 0x00007f74310117b1 in ?? () #7 0x0000000000000190 in ?? () #8 0x0000000000000000 in ?? ()
Thanks for the detailed steps to reproduce! commit 164108e3db5ba09d8e0605f88aa17dab83b68742 Author: Eric Anholt <eric@anholt.net> Date: Wed Jun 1 13:39:39 2011 -0700 glx: Fix use-before-null-check in dri2InvalidateBuffers(). The compiler used our dereference here to skip the NULL check below. Fixes window resize in "jconsole -J-Dsun.java2d.opengl=True" under OpenJDK 6. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=37766 Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com
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