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From "Peter Novodvorsky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3639) [drlvm][jit] ManyThreadTest deadlocks in JIT
Date Thu, 12 Apr 2007 16:44:32 GMT
[drlvm][jit] ManyThreadTest deadlocks in JIT
--------------------------------------------

                 Key: HARMONY-3639
                 URL: https://issues.apache.org/jira/browse/HARMONY-3639
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Peter Novodvorsky
            Priority: Minor


ManyThreadsTest from HARMONY-2742 sometimes hangs on 4996 iteration, backtrace shows that
it hangs in compiler:

(gdb) thread 1
[Switching to thread 1 (Thread 1080397952 (LWP 22821))]#0  0xffffe410 in ?? ()
(gdb) thread 0
Thread ID 0 not known.
(gdb) where
#0  0xffffe410 in ?? ()
#1  0xbfffc7b4 in ?? ()
#2  0x00000002 in ?? ()
#3  0x00000000 in ?? ()
#4  0x40652efe in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
#5  0x4064fc6c in _L_mutex_lock_88 () from /lib/tls/libpthread.so.0
#6  0x00000ff4 in ?? ()
#7  0xbfffc7c4 in ?? ()
#8  0x40552bf8 in __elf_set___libc_thread_subfreeres_element___rpc_thread_destroy__ () from
/lib/tls/libc.so.6
#9  0xb7b1de00 in ?? ()
#10 0x423db324 in ?? ()
#11 0xbfffc7c4 in ?? ()
#12 0x4050435a in pthread_mutex_lock () from /lib/tls/libc.so.6
#13 0x4050435a in pthread_mutex_lock () from /lib/tls/libc.so.6
#14 0x41c7a6a0 in Jitrino::Mutex::lock (this=0x41f71a28) at mkernel.h:111
#15 0x41c7e324 in Jitrino::CompilationInterface::lockMethodData (
    this=0xbfffc9cc)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/jitrino/src/vm/drl/DrlVMInterface.cpp:873
#16 0x41d8b316 in Jitrino::LockMethodSessionAction::run (this=0xb7b43f0c)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/jitrino/src/main/Jitrino.cpp:197
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) thread 2
[Switching to thread 2 (Thread -1818022992 (LWP 27816))]#0  0xffffe410 in ?? ()
(gdb) where
#0  0xffffe410 in ?? ()
#1  0x93a313b4 in ?? ()
#2  0x93a32bb0 in ?? ()
#3  0x8d36be30 in ?? ()
#4  0x404e307c in sched_yield () from /lib/tls/libc.so.6
#5  0x4001fe18 in hythread_yield ()
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/thread_native_basic.c:330
#6  0x40bca40f in jthread_monitor_enter (monitor=0x89658f0)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/thread_java_monitors.c:131
#7  0x4194c5de in ?? ()
#8  0x089658f0 in ?? ()
#9  0x93a325c8 in ?? ()
#10 0xb036d5d0 in ?? ()
#11 0x089658e8 in ?? ()
#12 0x00000000 in ?? ()
#13 0x00000000 in ?? ()
#14 0x00000000 in ?? ()
#15 0xdeadbeef in ?? ()
#16 0xdeadbeef in ?? ()
#17 0x423dbfe4 in ?? ()
#18 0x93a3152c in ?? ()
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) thread 3
[Switching to thread 3 (Thread 1389202352 (LWP 22824))]#0  0xffffe410 in ?? ()
(gdb) where
#0  0xffffe410 in ?? ()
#1  0x52cd81cc in ?? ()
#2  0x0000001b in ?? ()
#3  0x00000000 in ?? ()
#4  0x40650896 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/libpthread.so.0
#5  0x405041b3 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libc.so.6
#6  0x4001e882 in os_cond_timedwait (cond=0x52d03448, mutex=0x52d03430, ms=0, 
    nano=0)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/linux/os_condvar.c:41
#7  0x400207d1 in condvar_wait_impl (cond=0x52d03448, mutex=0x52d03430, ms=0, 
    nano=0, interruptable=1)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/thread_native_condvar.c:55
#8  0x40020cb2 in monitor_wait_impl (mon_ptr=0x52d03430, ms=0, nano=0, 
    interruptable=1)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/thread_native_fat_monitor.c:189
#9  0x400231db in thin_monitor_wait_impl (lockword_ptr=0x4240b284, ms=0, 
    nano=0, interruptable=1)
    at /localdisk/users/panovodv/harmony/tree/trunk/working_vm/vm/thread/src/thread_native_thin_monitor.c:439
...

Java stack is:

The stack trace of the 0xb036d500 java thread:
  [0xb036d500] 0x52abbc8d(m): java/security/AccessController.getContext()Ljava/security/AccessControlContext;
  [0xb036d500] 0x52ac2972(m): java/lang/Thread.<init>(Ljava/lang/ThreadGroup;Ljava/lang/Runnable;Ljava/lang/String;J)V
  [0xb036d500] 0x52ac2390(m): java/lang/Thread.<init>(Ljava/lang/ThreadGroup;Ljava/lang/String;)V
  [0xb036d500] 0x52ac220d(m): java/lang/FinalizerThread.<init>(Z)V
  [0xb036d500] 0x52e2826c(m): java/lang/FinalizerThread.spawnBalanceThreads()V
  [0xb036d500] 0x52e27e32(m): java/lang/FinalizerThread.startFinalization(Z)V
  [0xb036d500] 0x52ac4bf3(m): java/lang/Object.notifyAll()V
  [0xb036d500] 0x52e26e75(m): java/lang/Thread.detach(Ljava/lang/Throwable;)V

The stack trace of the 0x86ee978 java thread:
  [0x86ee978] (nil)(n): java/lang/VMThreadManager.wait(Ljava/lang/Object;JI)I
  [0x86ee978] 0x52ac46b1(m): java/lang/Object.wait()V
  [0x86ee978] 0x52ac6eae(m): java/lang/FinalizerThread.waitNewTask()V
  [0x86ee978] 0x52ac5c3d(m): java/lang/FinalizerThread.run()V
  [0x86ee978] 0x52ac4b3e(m): java/lang/Thread.runImpl()V

The stack trace of the 0x80ba680 java thread:
  [0x80ba680] 0x52ac32ad(m): java/util/WeakHashMap.get(Ljava/lang/Object;)Ljava/lang/Object;
  [0x80ba680] 0x52abbcbb(m): java/security/AccessController.getContext()Ljava/security/AccessControlContext;
  [0x80ba680] 0x52ac2972(m): java/lang/Thread.<init>(Ljava/lang/ThreadGroup;Ljava/lang/Runnable;Ljava/lang/String;J)V
  [0x80ba680] 0x52e261af(m): java/lang/Thread.<init>(Ljava/lang/Runnable;)V
  [0x80ba680] 0x52ac84d8(m): ManyThreadsTest.main([Ljava/lang/String;)V



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