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Bug
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Resolution: Unresolved
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High
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None
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1.7.4.1
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None
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MacOS X 10.9.0
Mac Pro (mid-2010), and MacBook Pro 15" Retina
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Severity 1 - Critical
Whenever I turn on VoiceOver while SourceTree is running, SourceTree goes into an endless loop. The spinning rainbow cursor appears and my only option is to force-quit the app.
I've been working on accessibility support in my application, so I've been using VO a lot. I've been noticing that SourceTree has been locking up like this for a while and it has been driving me absolutely nuts.
But I didn't put my finger on VO as the culprit until I happened to look at a stack trace showing where it was hung.
Once I saw that accessibility related stuff on the stack, I tried reproducing the problem by turning on VO and it instantly spinning-rainbow-cursor-locks SourceTree every time.
Call graph: 1970 Thread_1858437 DispatchQueue_1: com.apple.main-thread (serial) + 1970 ??? (in SourceTree) load address 0x100000000 + 0x1f34 [0x100001f34] + 1970 NSApplicationMain (in AppKit) + 940 [0x7fff89a96803] + 1970 -[NSApplication run] (in AppKit) + 553 [0x7fff89aab9cc] + 1970 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit) + 122 [0x7fff89ab78db] + 1970 _DPSNextEvent (in AppKit) + 1434 [0x7fff89ab828e] + 1970 _BlockUntilNextEventMatchingListInModeWithFilter (in HIToolbox) + 65 [0x7fff8fd6eabc] + 1970 ReceiveNextEventCommon (in HIToolbox) + 479 [0x7fff8fd6ecb7] + 1970 RunCurrentEventLoopInMode (in HIToolbox) + 226 [0x7fff8fd6ef0d] + 1970 CFRunLoopRunSpecific (in CoreFoundation) + 309 [0x7fff84f16275] + 1970 __CFRunLoopRun (in CoreFoundation) + 1830 [0x7fff84f16bd6] + 1970 __CFRunLoopDoSource1 (in CoreFoundation) + 478 [0x7fff84f25ade] + 1970 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ (in CoreFoundation) + 41 [0x7fff84f25b69] + 1970 mshMIGPerform (in HIServices) + 211 [0x7fff8d9af168] + 1970 _XSetAttributeValue (in HIServices) + 573 [0x7fff8d9cfdfe] + 1970 _AXXMIGSetAttributeValue (in HIServices) + 306 [0x7fff8d9c6d4d] + 1970 -[AXBBundleManager loadAXBundles] (in AccessibilityBundles) + 50 [0x10b7ea2c7] + 1970 -[AXBBundleManager loadAXBundleForBundle:] (in AccessibilityBundles) + 82 [0x10b7ea273] + 1970 -[AXBBundleManager _processesBundlesToLoad:] (in AccessibilityBundles) + 276 [0x10b7ea184] + 1970 -[AXBBundleManager _subBundlesForBundle:] (in AccessibilityBundles) + 103 [0x10b7e9b53] + 1970 +[NSBundle allFrameworks] (in Foundation) + 1024 [0x7fff8d71afc5] + 1970 objc_collect (in libobjc.A.dylib) + 482 [0x7fff8c96ddbe] + 1970 auto_zone_collect (in libauto.dylib) + 393 [0x7fff89454f29] + 1970 Auto::ThreadLocalCollector::collect(bool) (in libauto.dylib) + 289 [0x7fff8947df51] + 1970 Auto::ThreadLocalCollector::process_local_garbage(void (*)(Auto::ThreadLocalCollector*)) (in libauto.dylib) + 427 [0x7fff8947d76b] + 1970 Auto::ThreadLocalCollector::finalize_local_garbage_now(Auto::ThreadLocalCollector*) (in libauto.dylib) + 132 [0x7fff8947d8e4] + 1970 Auto::Zone::invalidate_garbage(unsigned long, void**) (in libauto.dylib) + 73 [0x7fff8946c179] + 1970 batchFinalize(_malloc_zone_t*, void (*)(auto_zone_cursor*, void (*)(void*, void*), void*), auto_zone_cursor*, unsigned long, void (*)(void*, void*)) (in libobjc.A.dylib) + 51 [0x7fff8c96eeca] + 1970 Auto::foreach_block_do(auto_zone_cursor*, void (*)(void*, void*), void*) (in libauto.dylib) + 41 [0x7fff8946c1a9] + 1970 finalizeOneObject(void*, void*) (in libobjc.A.dylib) + 50 [0x7fff8c96ef8a] + 1970 -[NSBundle finalize] (in Foundation) + 285 [0x7fff8d71a1fc] + 1952 _OSSpinLockLockSlow (in libsystem_platform.dylib) + 63 [0x7fff8851edf6] + ! 1952 syscall_thread_switch (in libsystem_kernel.dylib) + 10 [0x7fff838c7b16] + 18 _OSSpinLockLockSlow (in libsystem_platform.dylib) + 77,81,... [0x7fff8851ee04,0x7fff8851ee08,...]