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From "Elena Semukhina (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3517) [drlvm][theading] gc.SynchronizedFinilazersTest hangs intermittently on linux x86
Date Wed, 28 Mar 2007 11:37:32 GMT
[drlvm][theading] gc.SynchronizedFinilazersTest hangs intermittently on linux x86
---------------------------------------------------------------------------------

                 Key: HARMONY-3517
                 URL: https://issues.apache.org/jira/browse/HARMONY-3517
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Elena Semukhina


The test hung for me after 450 successful runs in JET mode.

To run the test iteratively please use the following command:

while true; $DRLVM -Xem:jet -cp <path to smoke tests> gc.SynchronizedFinilazersTest;
echo $i; fi; i=$[i+1]; done &

There are 83 threads which hang in __kernel_vsyscall () with the same stack traces:

(gdb) thr 1
[Switching to thread 1 (Thread -1215228224 (LWP 16830))]#0  0xffffe410 in __kernel_vsyscall
()
(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb791ce1e in __lll_mutex_lock_wait () from /lib/libpthread.so.0
#2  0xb7919634 in _L_mutex_lock_363 () from /lib/libpthread.so.0
#3  0xb7aaa306 in malloc () from /lib/libc.so.6
#4  0xb7b0c156 in pthread_mutex_lock () from /lib/libc.so.6
#5  0xb7bb591e in hymutex_lock (mutex=0xa43c4d40)
    at /nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/linux/os_mutex.c:68
#6  0xb7bb79ce in hythread_monitor_enter (mon_ptr=0xa43c4d40)
    at /nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/thread_native_fat_monitor.c:88
#7  0xb7bba1fb in hythread_thin_monitor_enter (lockword_ptr=0xa56b61d0)
    at /nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/thread_native_thin_monitor.c:365
#8  0xb6d46f37 in jthread_monitor_enter (monitor=0x95fee678)
    at /nfs/ins/proj/drl/coreapi/esemukhi/svn/drlvm/trunk/vm/thread/src/thread_java_monitors.c:123
#9  0xb5e3b5de in ?? ()
#10 0x95fee678 in ?? ()
#11 0x080ae620 in ?? ()
#12 0x080ae5b0 in ?? ()
#13 0x95fee670 in ?? ()
#14 0x00000000 in ?? ()
(gdb)



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