Comment 42 for bug 185311

Experiencing the bug while running JUnit tests on Eclipse 3.3.2 64-bit, sun-java6 6-03-0ubuntu2 (gutsy version, to avoid bug #174759), Hardy beta 5 AMD 64:

Does *not* work: export LIBXCB_ALLOW_SLOPPY_LOCK=true
Does *not* work: export LIBXCB_ALLOW_SLOPPY_LOCK=1

Works: sudo sed -i 's/XINERAMA/FAKEEXTN/g' /usr/lib/jvm/java-6-sun/jre/lib/amd64/xawt/libmawt.so

For completeness, here is the backtrace:

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x7fa7fdcf597c]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x7fa7fdcf5a84]
#2 /usr/lib/libX11.so.6(_XReply+0x10f) [0x7fa7fe54ef4f]
#3 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea64826]
#4 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea472ab]
#5 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea4757d]
#6 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x7fa7fea477f2]
#7 [0x7fa8249b9e77]
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x7fa7fdcf597c]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x15) [0x7fa7fdcf5a15]
#2 /usr/lib/libX11.so.6 [0x7fa7fe54e323]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x2c) [0x7fa7fe54572c]
#4 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea46645]
#5 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea46899]
#6 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x7fa7fea4761f]
#7 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x7fa7fea477f2]
#8 [0x7fa8249b9e77]