It's hard to know without more details about what operations your threads are doing, and in what order.
On Mon, Jul 27, 2009 at 10:10 AM, Pieter <[email protected]> wrote: > > We are developing an application that uses a GLSurfaceView to display > 3D objects. We regularly get the "Application Not Responding" dialog. > Inspection of the dumped threads reveals something that looks > suspiciously like a deadlock. I have added the three thread dumps > involved below. > > The first thread is the main application event thread, and it is > waiting on a join with a GLThread. > > The second thread is a brand new GLThread that is waiting for a > semaphore lock presumably so it knows it has exclusive access to the > graphics hardware. > > The third thread is probably a previous GLThread (the one the main > thread is waiting for to finish), that is waiting to be notified. The > strange thing is that the main application thread has just done a > "mDone=true; notify();" prior to calling "wait()", so the third thread > should have been awaken? > > - Has anyone else run into this issue? > - Does anyone know of a workaround? > > Any help would be appreciated! > > DALVIK THREADS: > "main" prio=5 tid=3 WAIT > | group="main" sCount=1 dsCount=0 s=0 obj=0x40018e70 > | sysTid=713 nice=0 sched=0/0 handle=-1093387108 > at java.lang.Object.wait(Native Method) > - waiting on <0x2976e0> (a java.lang.VMThread) > at java.lang.Thread.join(Thread.java:1020) > at java.lang.Thread.join(Thread.java:974) > at android.opengl.GLSurfaceView$GLThread.requestExitAndWait > (GLSurfaceView.java:1056) > at android.opengl.GLSurfaceView.onDetachedFromWindow > (GLSurfaceView.java:447) > at android.view.View.dispatchDetachedFromWindow(View.java:5230) > > "GLThread" prio=5 tid=23 WAIT > | group="main" sCount=1 dsCount=0 s=0 obj=0x43516a80 > | sysTid=1188 nice=0 sched=0/0 handle=3235208 > at java.lang.Object.wait(Native Method) > - waiting on <0x2976e0> (a java.lang.VMThread) > at java.lang.Thread.parkFor(Thread.java:1497) > at java.lang.LangAccessImpl.parkFor(LangAccessImpl.java:48) > at sun.misc.Unsafe.park(Unsafe.java:319) > at java.util.concurrent.locks.LockSupport.park(LockSupport.java:117) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt > (AbstractQueuedSynchronizer.java:680) > at > > java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly > (AbstractQueuedSynchronizer.java:836) > at > > java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly > (AbstractQueuedSynchronizer.java:1143) > at java.util.concurrent.Semaphore.acquire(Semaphore.java:267) > at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:883) > > "GLThread" prio=5 tid=19 WAIT > | group="main" sCount=1 dsCount=0 s=0 obj=0x435e4098 > | sysTid=1184 nice=0 sched=0/0 handle=4061600 > at java.lang.Object.wait(Native Method) > - waiting on <0x1c74b8> (a android.opengl.GLSurfaceView$GLThread) > at java.lang.Object.wait(Object.java:288) > at android.opengl.GLSurfaceView$GLThread.guardedRun > (GLSurfaceView.java:925) > at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:887) > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
