Re: Core Animation Deadlock

Subject: Re: Core Animation Deadlock
From: Colin Cornaby <email@hidden>
Date: Thu, 24 Apr 2008 19:38:43 -0700

It looks like NSUIHeartBeat could be attempting to lock something. Although I could be wrong, it may not be related.

Here's the full stack trace across all threads.

(gdb) thread apply all bt

Thread 37 (process 13823 thread 0xf11b):
#0  0x958af506 in semaphore_timedwait_signal_trap ()
#1  0x958e184f in _pthread_cond_wait ()
#2  0x958e30d3 in pthread_cond_timedwait_relative_np ()
#3  0x90e5ae8c in -[NSCondition waitUntilDate:] ()
#4  0x90e5aca0 in -[NSConditionLock lockWhenCondition:beforeDate:] ()
#5  0x90e5ac05 in -[NSConditionLock lockWhenCondition:] ()
#6  0x900a9468 in -[NSUIHeartBeat _heartBeatThread:] ()
#7  0x90e14f1d in -[NSThread main] ()
#8  0x90e14ac4 in __NSThread__main__ ()
#9  0x958e06f5 in _pthread_start ()
#10 0x958e05b2 in thread_start ()

Thread 36 (process 13823 thread 0xf207):
#0  0x958af506 in semaphore_timedwait_signal_trap ()
#1  0x958e184f in _pthread_cond_wait ()
#2  0x958e30d3 in pthread_cond_timedwait_relative_np ()
#3  0x96dd52fe in TSWaitOnConditionTimedRelative ()
#4  0x96df5fc4 in MPWaitOnQueue ()
#5  0x918f99b8 in TFolderSizeTask::FolderSizeTaskProc ()
#6  0x96df455b in PrivateMPEntryPoint ()
#7  0x958e06f5 in _pthread_start ()
#8  0x958e05b2 in thread_start ()

Thread 35 (process 13823 thread 0xf513):
#0  0x958af506 in semaphore_timedwait_signal_trap ()
#1  0x958e184f in _pthread_cond_wait ()
#2  0x958e30d3 in pthread_cond_timedwait_relative_np ()
#3  0x96dd52fe in TSWaitOnConditionTimedRelative ()
#4  0x96df5fc4 in MPWaitOnQueue ()
#5  0x918f99b8 in TFolderSizeTask::FolderSizeTaskProc ()
#6  0x96df455b in PrivateMPEntryPoint ()
#7  0x958e06f5 in _pthread_start ()
#8  0x958e05b2 in thread_start ()

Thread 34 (process 13823 thread 0xcf57):
#0  0x958af506 in semaphore_timedwait_signal_trap ()
#1  0x958e184f in _pthread_cond_wait ()
#2  0x958e30d3 in pthread_cond_timedwait_relative_np ()
#3  0x96dd52fe in TSWaitOnConditionTimedRelative ()
#4  0x96df5fc4 in MPWaitOnQueue ()
#5  0x918f99b8 in TFolderSizeTask::FolderSizeTaskProc ()
#6  0x96df455b in PrivateMPEntryPoint ()
#7  0x958e06f5 in _pthread_start ()
#8  0x958e05b2 in thread_start ()

Thread 33 (process 13823 thread 0xe35f):
#0  0x958ff5e2 in select$DARWIN_EXTSN ()
#1  0x9110550f in __CFSocketManager ()
#2  0x958e06f5 in _pthread_start ()
#3  0x958e05b2 in thread_start ()

Thread 32 (process 13823 thread 0xdc07):
#0  0x958dff66 in kevent ()
#1  0x910cf39f in __monitor_file_descriptor__ ()
#2  0x958e06f5 in _pthread_start ()
#3  0x958e05b2 in thread_start ()

Thread 31 (process 13823 thread 0xce57):
#0  0x958af506 in semaphore_timedwait_signal_trap ()
#1  0x958e184f in _pthread_cond_wait ()
#2  0x958e30d3 in pthread_cond_timedwait_relative_np ()
#3  0x96dd52fe in TSWaitOnConditionTimedRelative ()
#4  0x96df5fc4 in MPWaitOnQueue ()
#5  0x918ff3bb in TPropertyTask::PropertyTaskProc ()
#6  0x96df455b in PrivateMPEntryPoint ()
#7  0x958e06f5 in _pthread_start ()
#8  0x958e05b2 in thread_start ()

Thread 30 (process 13823 thread 0xc657):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x96df6347 in TSWaitOnCondition ()
#4  0x96dd52d2 in TSWaitOnConditionTimedRelative ()
#5  0x96df5fc4 in MPWaitOnQueue ()
#6  0x918f7a6e in TNodeSyncTask::SyncTaskProc ()
#7  0x96df455b in PrivateMPEntryPoint ()
#8  0x958e06f5 in _pthread_start ()
#9  0x958e05b2 in thread_start ()

Thread 29 (process 13823 thread 0xb803): #0 0x958af4a6 in mach_msg_trap () #1 0x958b6c9c in mach_msg () #2 0x910fa0be in CFRunLoopRunSpecific () #3 0x910fad54 in CFRunLoopRun () #4 0x918ec5dc in TFSEventsNotificationTask::FSEventsNotificationTaskProc () #5 0x96df455b in PrivateMPEntryPoint () #6 0x958e06f5 in _pthread_start () #7 0x958e05b2 in thread_start ()

Thread 28 (process 13823 thread 0xb407):
#0  0x958af4a6 in mach_msg_trap ()
#1  0x958b6c9c in mach_msg ()
#2  0x910fa0be in CFRunLoopRunSpecific ()
#3  0x910fad54 in CFRunLoopRun ()
#4  0x918ec463 in TSystemNotificationTask::SystemNotificationTaskProc ()
#5  0x96df455b in PrivateMPEntryPoint ()
#6  0x958e06f5 in _pthread_start ()
#7  0x958e05b2 in thread_start ()

Thread 27 (process 13823 thread 0xb203):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 26 (process 13823 thread 0x320f):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 25 (process 13823 thread 0x5e0f):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 24 (process 13823 thread 0x5d1b):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 23 (process 13823 thread 0x7e0b):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 22 (process 13823 thread 0xb007):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 21 (process 13823 thread 0x7c47):
#0  0x00000000 in ?? ()
Cannot access memory at address 0x0

Thread 20 (process 13823 thread 0xaf27):
#0  0x9591907a in __workq_ops ()
#1  0x9591a772 in workqueue_exit ()
#2  0x959190aa in start_wqthread ()

Thread 19 (process 13823 thread 0xaa03):
#0  0x958af4a6 in mach_msg_trap ()
#1  0x958b6c9c in mach_msg ()
#2  0x910fa0be in CFRunLoopRunSpecific ()
#3  0x910facf8 in CFRunLoopRunInMode ()
#4  0x97221dc7 in -[IMRemoteObjectBroadcaster _workerThread] ()
#5  0x90e14f1d in -[NSThread main] ()
#6  0x90e14ac4 in __NSThread__main__ ()
#7  0x958e06f5 in _pthread_start ()
#8  0x958e05b2 in thread_start ()

Thread 18 (process 13823 thread 0x9403):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 17 (process 13823 thread 0x9303):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 16 (process 13823 thread 0x9203):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 15 (process 13823 thread 0x9103):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 14 (process 13823 thread 0x8f0f):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 13 (process 13823 thread 0x900f):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 12 (process 13823 thread 0x8e07):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x90aa7e51 in fe_fragment_thread ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 11 (process 13823 thread 0x8803):
#0  0x90a27d9c in CARenderLayerDepthSortSublayers ()
#1  0x90a27611 in prepare_layer0 ()
#2  0x90a27597 in prepare_layer0 ()
#3  0x90a27597 in prepare_layer0 ()
#4  0x90a26dd4 in CARenderUpdateAddContext ()
#5  0x90a25f72 in view_draw ()
#6  0x90a34f60 in view_display_link ()
#7  0x90a26936 in link_callback ()
#8  0x94cc1015 in CVDisplayLink::performIO ()
#9  0x94cc1641 in CVDisplayLink::runIOThread ()
#10 0x958e06f5 in _pthread_start ()
#11 0x958e05b2 in thread_start ()

Thread 10 (process 13823 thread 0x6703):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 9 (process 13823 thread 0x6603):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 8 (process 13823 thread 0x6503):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 7 (process 13823 thread 0x6403):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 6 (process 13823 thread 0x6303):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 5 (process 13823 thread 0x6203):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 4 (process 13823 thread 0x610b):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x964f1460 in pthreadSemaphoreWait ()
#4  0x96503d92 in CMMConvTask ()
#5  0x958e06f5 in _pthread_start ()
#6  0x958e05b2 in thread_start ()

Thread 3 (process 13823 thread 0x590b): #0 0x958b668e in __semwait_signal () #1 0x958e1986 in _pthread_cond_wait () #2 0x958e136d in pthread_cond_wait$UNIX2003 () #3 0x90e5ca02 in -[NSCondition wait] () #4 0x90e1539a in -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:] () #5 0x90e689b8 in -[NSObject(NSThreadPerformAdditions) performSelectorOnMainThread:withObject:waitUntilDone:] () #6 0x9672a38e in -[IKTaskManager taskLoop] () #7 0x90e14f1d in -[NSThread main] () #8 0x90e14ac4 in __NSThread__main__ () #9 0x958e06f5 in _pthread_start () #10 0x958e05b2 in thread_start ()

Thread 2 (process 13823 thread 0x4607):
#0  0x958b668e in __semwait_signal ()
#1  0x958e1986 in _pthread_cond_wait ()
#2  0x958e136d in pthread_cond_wait$UNIX2003 ()
#3  0x91bca432 in glvmDoWork ()
#4  0x958e06f5 in _pthread_start ()
#5  0x958e05b2 in thread_start ()

Thread 1 (process 13823 local thread 0x2e23): #0 0x958af4ee in semaphore_wait_signal_trap () #1 0x958b6fc5 in pthread_mutex_lock () #2 0x909f8d72 in CAContextCommitTransaction () #3 0x909f89bd in CATransactionCommit () #4 0x90375351 in -[NSView(NSLayerKitGlue) _drawRectAsLayerTree:] () #5 0x9010ab1e in -[NSView _drawRect:clip:] () #6 0x901091ed in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #7 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #8 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #9 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #10 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #11 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #12 0x9010870b in -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] () #13 0x9010522f in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] () #14 0x90045c87 in -[NSView displayIfNeeded] () #15 0x90045835 in -[NSWindow displayIfNeeded] () #16 0x90045658 in _handleWindowNeedsDisplay () #17 0x910f89a2 in __CFRunLoopDoObservers () #18 0x910f9d05 in CFRunLoopRunSpecific () #19 0x910facf8 in CFRunLoopRunInMode () #20 0x9159fda4 in RunCurrentEventLoopInMode () #21 0x9159faf6 in ReceiveNextEventCommon () #22 0x9159fa31 in BlockUntilNextEventMatchingListInMode () #23 0x900434fd in _DPSNextEvent () #24 0x90042db0 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] () #25 0x9003bdeb in -[NSApplication run] () #26 0x90009028 in NSApplicationMain () #27 0x00007401 in main (argc=1, argv=0xbffff700) at /Users/ colincornaby/Documents/Software Projects/Fuse/main.m:13

On Apr 24, 2008, at 7:30 PM, John Stiles wrote:

You could also show any other thread stuck trying to lock a mutex? I assume there's another thread holding this lock or stuck trying to lock something else.

Colin Cornaby wrote:
Hi,
I'm currently trying to track down a deadlock. After adding a series of layers, CoreAnimation deadlocks here on the main thread:

#0 0x958af4ee in semaphore_wait_signal_trap #1 0x958b6fc5 in pthread_mutex_lock #2 0x909f8d72 in CAContextCommitTransaction #3 0x909f89bd in CATransactionCommit #4 0x90375351 in -[NSView(NSLayerKitGlue) _drawRectAsLayerTree:] #5 0x9010ab1e in -[NSView _drawRect:clip:] #6 0x901091ed in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #7 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #8 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #9 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #10 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #11 0x90109c23 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #12 0x9010870b in -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView :] #13 0x9010522f in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] #14 0x90045c87 in -[NSView displayIfNeeded] #15 0x90045835 in -[NSWindow displayIfNeeded] #16 0x90045658 in _handleWindowNeedsDisplay #17 0x910f89a2 in __CFRunLoopDoObservers #18 0x910f9d05 in CFRunLoopRunSpecific #19 0x910facf8 in CFRunLoopRunInMode #20 0x9159fda4 in RunCurrentEventLoopInMode #21 0x9159faf6 in ReceiveNextEventCommon #22 0x9159fa31 in BlockUntilNextEventMatchingListInMode #23 0x900434fd in _DPSNextEvent #24 0x90042db0 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] #25 0x9003bdeb in -[NSApplication run] #26 0x90009028 in NSApplicationMain #27 0x00007401 in main at main.m:13

There are a bunch of other threads, too many to reasonably list in a message to the list.

While I continue debugging and trying to track down what I'm doing that starts the deadlock, does anyone have any general ideas on where it would be best to look?
Thanks,
Colin
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Re: Core Animation Deadlock
From: John Harper <email@hidden>


References:  
  >Core Animation Deadlock (From: Colin Cornaby <email@hidden>)
  >Re: Core Animation Deadlock (From: John Stiles <email@hidden>)




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