From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) Description of problem: Java Swing Application with specific threads using JNI fonctions hangs on os::Linux::safe_cond_wait (result of gcc) The Swing IHM is completely frozen and the system uses 100% of CPU The kill -3 on JVM doesn't work. But the strace reveals that there is a stuck with NPTL futex. This NPTL futex is in glibc library. The strace result is : futex(0x8053048, FUTEX_WAIT, 0, NULL) Version of java Hotspot 1.4.2_03-b02 Version-Release number of selected component (if applicable): glibc-2 .3.2-11.9 , kernel-2.4.20.8 How reproducible: Sometimes Steps to Reproduce: 1.Launch the Swing application 2.Refresh frequently java IHM by passing xterm window 3.wait and have luck Additional info:
Red Hat Linux 9 is no longer supported and there have been important NPTL fixes since then. If you manage to reproduce this with Fedora Core 2 or RHEL3 U2, please reopen.