Hi all, I got the foll. screen full of error codes and a core dump when I tried running my program. I cannot understand what the errors are, can any one please throw some light? I am running jdk1.1.7 on RedHat5.1 on an P-2@ 266Mhz. The program i am writing uses Magician to get OpenGl calls going. <--------------------------------------------------------------> SIGSEGV 11* segmentation violation stackbase=0x415b2000, stackpointer=0x415b0f88 Full thread dump: "Screen Updater" (TID:0x4065dbd0, sys_thread_t:0x41614e0c, state:CW) prio=4 java.lang.Object.wait(Object.java) sun.awt.ScreenUpdater.nextEntry(ScreenUpdater.java:70) sun.awt.ScreenUpdater.run(ScreenUpdater.java:90) "AWT-Motif" (TID:0x4065c9b0, sys_thread_t:0x415f3e0c, state:CW) prio=5 java.lang.Thread.run(Thread.java) "AWT-Input" (TID:0x4065c710, sys_thread_t:0x415d2e0c, state:R) prio=5 "AWT-EventQueue-0" (TID:0x4065c728, sys_thread_t:0x415b1e0c, state:R) prio=5 *current thread* NeuronFileparser.MakeglLists(NeuronFileparser.java:755) NeuronFileparser.BuildTheTree(NeuronFileparser.java:422) NeuronFileparser.btnOpenListener(NeuronFileparser.java:305) NeuronFileparser.access$0(NeuronFileparser.java:276) NeuronFileparser$1.actionPerformed(NeuronFileparser.java:134) java.awt.Button.processActionEvent(Button.java:256) java.awt.Button.processEvent(Button.java:229) java.awt.Component.dispatchEventImpl(Component.java:1809) java.awt.Component.dispatchEvent(Component.java:1741) java.awt.EventDispatchThread.run(EventDispatchThread.java:79) "Finalizer thread" (TID:0x40657210, sys_thread_t:0x4139be0c, state:CW) prio=1 "Async Garbage Collector" (TID:0x40657258, sys_thread_t:0x4137ae0c, state:CW) prio=1 "Idle thread" (TID:0x406572a0, sys_thread_t:0x41359e0c, state:R) prio=0 "Clock" (TID:0x40657088, sys_thread_t:0x41338e0c, state:CW) prio=12 "main" (TID:0x406570b0, sys_thread_t:0x81889b0, state:CW) prio=5 Monitor Cache Dump: <unknown key> (0x0x4137ae0c): <unowned> Waiting to be notified: "Async Garbage Collector" (0x4137ae0c) sun.awt.motif.MToolkit@1080412072/1080801416: <unowned> Waiting to be notified: "AWT-Motif" (0x415f3e0c) sun.awt.ScreenUpdater@1080417232/1080824632: <unowned> Waiting to be notified: "Screen Updater" (0x41614e0c) Registered Monitor Dump: Thread queue lock: <unowned> Waiting to be notified: "main" (0x81889b0) Name and type hash table lock: <unowned> String intern lock: <unowned> JNI pinning lock: <unowned> JNI global reference lock: <unowned> BinClass lock: <unowned> Class loading lock: <unowned> Java stack lock: <unowned> Code rewrite lock: <unowned> Heap lock: <unowned> Has finalization queue lock: <unowned> Finalize me queue lock: <unowned> Waiting to be notified: "Finalizer thread" (0x4139be0c) Dynamic loading lock: <unowned> Monitor IO lock: <unowned> Child death monitor: <unowned> Event monitor: <unowned> I/O monitor: owner "AWT-Input" (0x415d2e0c, 1 entry) Alarm monitor: <unowned> Waiting to be notified: "Clock" (0x41338e0c) Monitor registry: owner "AWT-EventQueue-0" (0x415b1e0c, 1 entry) Thread Alarm Q: sys_thread_t 0x4137ae0c [Timeout in 39 ms] sys_thread_t 0x415f3e0c [Timeout in 51 ms] sys_thread_t 0x415d2e0c [Timeout in 123 ms] Aborted (core dumped) <--------------------------------------------------------------> Thanks, -karthik. +-----------------------------------------------------------------+ | Karthik Vishwanath, Junior Research Fellow, | | National Centre for Biological Sciences, TIFR Bangalore, India. | | Ph[Off]: (080)8561657/58/59/71/72; 8462895, Ext. 3231 | | mail to: [EMAIL PROTECTED] | | Alt mail: [EMAIL PROTECTED] | +-----------------------------------------------------------------+ ---------------------------------------------------------------------- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]