Hi I also faced dreadful "get_thread_regs failed for a lwp .." but depending on switches to jstack and whether i run my application in IDE ( eclipse based SpringSource Tools Suite) or from gnome-terminal jstack works..
Below are my observations: - application ran from IDE, jstack <PID> in gnome-terminal i got: "Unable to open socket file: target process not responding or HotSpot VM not loaded The -F option can be used when the target process is not responding" i can clearly see correct thread dump on eclipse console (sysout) - application ran from IDE, jstack -F <PID> in terminal i got: "Attaching to process ID 3744, please wait... Debugger attached successfully. Server compiler detected. JVM version is 17.0-b16 sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp ..." on eclipse console (sysout/syserr) i see no stackTrace - application ran from gnome-terminal, jstack <PID> in terminal i got correct thread dump. application sysout/syserr is clear - application ran from gnome-terminal, jstack -F <PID> in terminal i got "Attaching to process ID 4265, please wait... Debugger attached successfully. Server compiler detected. JVM version is 17.0-b16 sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp ..." application sysout/syserr is clear Ubuntu 10.04.1 LTS uname -a: 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010 x86_64 GNU/Linux java -version: java version "1.6.0_21" Java(TM) SE Runtime Environment (build 1.6.0_21-b06) Java HotSpot(TM) 64-Bit Server VM (build 17.0-b16, mixed mode) -- jstack thread dump error: get_thread_regs failed for a lwp https://bugs.launchpad.net/bugs/597098 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
