Bug #3530
closedLocking assertion failure
0%
Description
Specifically, I encountered this issue on Ubuntu version 8.04.1 (Hardy Heron) with dual displays using java 1.5
I get several backtrace messages to the console that begin with "Locking assertion failure. Backtrace:"
The following site describes the solution in more detail
http://ubuntuforums.org/showthread.php?t=610457
The command I used to solve this issue is
sudo sed -i 's/XINERAMA/FAKEEXTN/g' /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/xawt/libmawt.so
Updated by Christopher Brooks over 15 years ago
Hauke had a similar bug, he wrote:
--start--
Running the triq/ptolemy.domains.sr.examples on linux with Java 1.6 works fine, with 1.5 gives the following message (something similar was seen on the mac, Java 1.6 won't run on the mac so far). Despite the message, the result looks fine.
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb0873767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb08738b1]
#2 /usr/lib/libX11.so.6(XReply+0xfd) [0xb0b521bd]
#3 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/xawt/libmawt.so [0xb01a4dce]
#4 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/xawt/libmawt.so [0xb018ed77]
#5 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/xawt/libmawt.so [0xb018eef3]
#6 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x26) [0xb018f136]
#7 [0xb25cfbfa]
#8 [0xb25c9b3b]
#9 [0xb25c9b3b]
#10 [0xb25c7219]
#11 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/client/libjvm.so [0xb777c2bc]
#12 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/client/libjvm.so [0xb7890ed8]
#13 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/client/libjvm.so [0xb777c0ef]
#14 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x32d) [0xb77d9b9d]
#15 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged_Ljava_security_PrivilegedAction_2+0x3d) [0xb757b30d]
#16 [0xb25cf4ab]
#17 [0xb25c9a64]
#18 [0xb25c7219]
#19 /usr/lib/jvm/java-1.5.0-sun-1.5.0.15/jre/lib/i386/client/libjvm.so [0xb777c2bc]
516 ms. Memory: 4540K Free: 953K (21%)
- It's a Java bug, see http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6532373
- This is something about wrong usage of Xinerama Linux library. Maybe it's something similar for Mac, I cannot check.
- The sed workaround suggested in the bug report works for me (though it touches the JRE libraries themselves...):
sed -i 's/XINERAMA/FAKEEXTN/g' /usr/lib/jvm/java-1.5.0-sun-1.5.0.11/jre/lib/i386/xawt/libmawt.so
--end--