Bug 6068 - Crash While Committing Animation
Summary: Crash While Committing Animation
Status: RESOLVED DUPLICATE of bug 6069
Alias: None
Product: iOS
Classification: Xamarin
Component: XI runtime ()
Version: 5.2
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-07-10 18:45 UTC by Jeff
Modified: 2012-07-16 11:53 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Jeff 2012-07-10 18:45:51 UTC
I have an app that is crashing while drawing images onto tableviewcells. This screen spawns a thread that retrieves an image from a url and then commits a thumbnail image transition to draw it on the appropriate cell. Occasionally, this will crash the app with the stack trace pasted below. 

iPhone(587,0x9a44000) malloc: *** error for object 0x9464b50: pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug

  at MonoTouch.UIKit.UIView.CommitAnimations () [0x00000] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIView.g.cs:817
  at Baesman.iPhone.SubscriptionDataSource.RefreshImage (Baesman.iPhone.BaesmanTableViewCell) [0x00018] in /Users/admin/Projects/BaesmanGroup/Mobile/Trunk/iPhone/Classes/Options Screens/Supscriptions/SubscriptionDataSource.cs:178
  at Baesman.iPhone.SubscriptionDataSource.RequestImage (object) [0x000a2] in /Users/admin/Projects/BaesmanGroup/Mobile/Trunk/iPhone/Classes/Options Screens/Supscriptions/SubscriptionDataSource.cs:159
  at Baesman.iPhone.SubscriptionDataSource.GetImage (Baesman.iPhone.BaesmanTableViewCell,string) [0x0004d] in /Users/admin/Projects/BaesmanGroup/Mobile/Trunk/iPhone/Classes/Options Screens/Supscriptions/SubscriptionDataSource.cs:129
  at Baesman.iPhone.SubscriptionDataSource/<GetCell>c__AnonStorey3.<>m__B () [0x00000] in /Users/admin/Projects/BaesmanGroup/Mobile/Trunk/iPhone/Classes/Options Screens/Supscriptions/SubscriptionDataSource.cs:102
  at System.Threading.Thread.StartInternal () [0x0001d] in /Developer/MonoTouch/Source/mono/mcs/class/corlib/System.Threading/Thread.cs:696
  at (wrapper runtime-invoke) object.runtime_invoke_dynamic (intptr,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

	0   iPhone                              0x007003a8 mono_handle_native_sigsegv + 280
	1   iPhone                              0x007230fc sigabrt_signal_handler + 180
	2   libsystem_c.dylib                   0x3188d7ed _sigtramp + 48
	3   libsystem_c.dylib                   0x3188320f pthread_kill + 54
	4   libsystem_c.dylib                   0x3187c29f abort + 94
	5   libsystem_c.dylib                   0x31837381 free + 380
	6   libobjc.A.dylib                     0x357b8d79 object_dispose + 20
	7   CoreFoundation                      0x3720c61f -[NSObject dealloc] + 82
	8   UIKit                               0x339789b1 -[UIViewAnimationState dealloc] + 92
	9   libobjc.A.dylib                     0x357b8175 _objc_rootRelease + 36
	10  UIKit                               0x33977a5f +[UIViewAnimationState popAnimationState] + 2410
	11  iPhone                              0x0027efb4 wrapper_managed_to_native_MonoTouch_ObjCRuntime_Messaging_void_objc_msgSend_intptr_intptr + 68
	12  iPhone                              0x000a12dc Baesman_iPhone_SubscriptionDataSource_RefreshImage_Baesman_iPhone_BaesmanTableViewCell + 252
	13  iPhone                              0x000a10c4 Baesman_iPhone_SubscriptionDataSource_RequestImage_object + 1112
	14  iPhone                              0x000a0b48 Baesman_iPhone_SubscriptionDataSource_GetImage_Baesman_iPhone_BaesmanTableViewCell_string + 664
	15  iPhone                              0x000e1c28 Baesman_iPhone_SubscriptionDataSource__GetCellc__AnonStorey3__m__B + 156
	16  iPhone                              0x0054da98 System_Threading_Thread_StartInternal + 216
	17  iPhone                              0x0057a328 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 200
	18  iPhone                              0x006ec9e8 mono_jit_runtime_invoke + 1644
	19  iPhone                              0x00794e74 mono_runtime_invoke + 128
	20  iPhone                              0x00794fd0 mono_runtime_delegate_invoke + 96
	21  iPhone                              0x007b8008 start_wrapper + 492
	22  iPhone                              0x007d042c thread_start_routine + 152
	23  iPhone                              0x007ead64 GC_start_routine + 92
	24  libsystem_c.dylib                   0x31844735 _pthread_start + 320
	25  libsystem_c.dylib                   0x318445f0 thread_start + 8

Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
Comment 1 Sebastien Pouliot 2012-07-16 11:53:07 UTC
different crash but (very likely) the same issue (thread related)

*** This bug has been marked as a duplicate of bug 6069 ***