Hello,
My user reports a crash and say that it seems happen when he disconnects his laptop (being closed) from the external monitor then open the laptop again to use my app.
I cannot reproduce the issue to debug. The crash report prints some information as below. I'm not sure if the stack trace tells some problems related to KVO. Could anyone give me the advise what could be wrong in my app? thanks a lot.
"vmRegionInfo" : "0x113e1930 is not in any region. Bytes before following region: 4006160080\n REGION TYPE START - END [ VSIZE] PRT\/MAX SHRMOD REGION DETAIL\n UNUSED SPACE AT START\n---> \n __TEXT 100074000-1012a4000 [ 18.2M] r-x\/r-x SM=COW ...nts\/MacOS\/MyApp",
"isCorpse" : 1,
"exception" : {"codes":"0x0000000000000001, 0x00000000113e1930","rawCodes":[1,289282352],"type":"EXC_BAD_ACCESS","signal":"SIGSEGV","subtype":"KERN_INVALID_ADDRESS at 0x00000000113e1930"},
"termination" : {"flags":0,"code":11,"namespace":"SIGNAL","indicator":"Segmentation fault: 11","byProc":"exc handler","byPid":92577},
"ktriageinfo" : "VM - Compressor failed a blocking pager_get\nVM - Compressor failed a blocking pager_get\nVM - Compressor failed a blocking pager_get\nVM - Compressor failed a blocking pager_get\nVM - Compressor failed a blocking pager_get\n",
"vmregioninfo" : "0x113e1930 is not in any region. Bytes before following region: 4006160080\n REGION TYPE START - END [ VSIZE] PRT\/MAX SHRMOD REGION DETAIL\n UNUSED SPACE AT START\n---> \n __TEXT 100074000-1012a4000 [ 18.2M] r-x\/r-x SM=COW ...nts\/MacOS\/MyApp",
"extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
"faultingThread" : 0,
"threads" : [{"triggered":true,"id":3800781,"threadState":{"x":[{"value":289282352},{"value":8636418237,"objc-selector":"_isKVOA"},{"value":0},{"value":4},{"value":15},{"value":1},{"value":8636388587,"objc-selector":"observeValueForKeyPath:ofObject:change:context:"},{"value":6171429376},{"value":8636416000,"objc-selector":""},{"value":16},{"value":2},{"value":63},{"value":36},{"value":5177990704},{"value":7387906048},{"value":8878686176,"symbolLocation":0,"symbol":"OBJC_CLASS_$_NSMutableIndexSet"},{"value":7389711300,"symbolLocation":0,"symbol":"class_getMethodImplementation"},{"value":8892457680},{"value":0},{"value":289282352},{"value":8636418237,"objc-selector":"_isKVOA"},{"value":152},{"value":19},{"value":105553283433568},{"value":4},{"value":8636411362,"objc-selector":"removeIndex:"},{"value":6171429368},{"value":8878677536,"symbolLocation":0,"symbol":"OBJC_CLASS_$_NSKeyValueObservance"},{"value":105553180243120}],"flavor":"ARM_THREAD_STATE64","lr":{"value":7389711344},"cpsr":{"value":2147487744},"fp":{"value":6171429264},"sp":{"value":6171429248},"esr":{"value":2449473542,"description":"(Data Abort) byte read Translation fault"},"pc":{"value":7389786712,"matchesCrashFrame":1},"far":{"value":289282352}},"queue":"com.apple.main-thread","frames":[{"imageOffset":131672,"symbol":"objc_class::isInitialized()","symbolLocation":0,"imageIndex":0},{"imageOffset":56304,"symbol":"class_getMethodImplementation","symbolLocation":44,"imageIndex":0},{"imageOffset":83920,"symbol":"_NSKVONotifyingOriginalClassForIsa","symbolLocation":32,"imageIndex":1},{"imageOffset":229352,"symbol":"_NSKeyValueObservationInfoGetObservances","symbolLocation":288,"imageIndex":1},{"imageOffset":1798020,"symbol":"NSKeyValueWillChangeWithPerThreadPendingNotifications","symbolLocation":240,"imageIndex":1},{"imageOffset":11380800,"symbol":"__reusableDependencyContextForKey_block_invoke","symbolLocation":64,"imageIndex":2},{"imageOffset":309344,"symbol":"__CFSetApplyFunction_block_invoke","symbolLocation":28,"imageIndex":3},{"imageOffset":308872,"symbol":"CFBasicHashApply","symbolLocation":148,"imageIndex":3},{"imageOffset":308684,"symbol":"CFSetApplyFunction","symbolLocation":328,"imageIndex":3},{"imageOffset":479500,"symbol":"-[NSView setFrameSize:]","symbolLocation":1228,"imageIndex":2},{"imageOffset":612340,"symbol":"-[NSThemeFrame setFrameSize:]","symbolLocation":292,"imageIndex":2},{"imageOffset":550020,"symbol":"-[NSView setFrame:]","symbolLocation":420,"imageIndex":2},{"imageOffset":620044,"symbol":"-[NSView resizeWithOldSuperviewSize:]","symbolLocation":588,"imageIndex":2},{"imageOffset":623452,"symbol":"-[NSView _layoutSubtreeIfNeededAndAllowTemporaryEngine:]","symbolLocation":944,"imageIndex":2},{"imageOffset":622296,"symbol":"-[NSWindow(NSConstraintBasedLayout) _layoutViewTree]","symbolLocation":148,"imageIndex":2},{"imageOffset":610144,"symbol":"-[NSWindow _oldPlaceWindow:fromServer:]","symbolLocation":584,"imageIndex":2},{"imageOffset":605664,"symbol":"-[NSWindow _setFrameCommon:display:fromServer:]","symbolLocation":2220,"imageIndex":2},{"imageOffset":9294524,"symbol":"-[NSWindow(NSScreenLayout) _setFrame:fromAdjustmentToScreen:anchorIfNeeded:animate:]","symbolLocation":1692,"imageIndex":2},{"imageOffset":3963944,"symbol":"-[NSWindow _adjustWindowToScreen]","symbolLocation":1296,"imageIndex":2},{"imageOffset":4122644,"symbol":"-[NSWindow _displayChangedSoAdjustWindows:]","symbolLocation":116,"imageIndex":2},{"imageOffset":12082044,"symbol":"___NSApplicationPerformScreenInvalidationReactions_block_invoke","symbolLocation":96,"imageIndex":2},{"imageOffset":243432,"symbol":"-[NSApplication enumerateWindowsWithOptions:usingBlock:]","symbolLocation":288,"imageIndex":2},{"imageOffset":12080648,"symbol":"___NSApplicationReactToScreenInvalidation_block_invoke","symbolLocation":640,"imageIndex":2},{"imageOffset":12079364,"symbol":"_NSApplicationReactToScreenInvalidation","symbolLocation":288,"imageIndex":2},{"imageOffset":12079872,"symbol":"-[NSApplication(ScreenHandling) _reactToDisplayChanges:]","symbolLocation":408,"imageIndex":2},
