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  2. Crash in Apple code, not mine - what can I do?

Re: Crash in Apple code, not mine - what can I do?

Jon Gotow
 

What's the actual cause of the crash? A segmentation fault (SIGSEGV) or some other memory error could be caused by you corrupting memory, handing NSDocumentController a bad object somehow, or some other application error. My experience with crashes in AppKit is that it's usually something I've done prior to the crash that has scrambled memory or corrupted an object. Is the problem reproducible so you can chase down possibilities?

- Jon

On Dec 6, 2019, at 12:46 PM, Steve Mills via Groups.Io <sjmills@...> wrote:

A customer sent a crashlog that clearly shows Apple's code is what's crashing on 10.14.6. There's no way I can reproduce it. So what can I do? Just submit a bug to Apple with the crashlog (although it's 10.14.6, so I doubt they care)?

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff6dc0269d objc_msgSend + 29
1 com.apple.AppKit 0x00007fff41034f8b -[NSDocument _silentlyRecoverableVariantOfSavingError:resaver:] + 40
2 com.apple.AppKit 0x00007fff415c7ce1 __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke.856 + 620
3 com.apple.AppKit 0x00007fff415c9247 __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke_3.916 + 209
4 com.apple.AppKit 0x00007fff41068079 __62-[NSDocumentController(NSInternal) _onMainThreadInvokeWorker:]_block_invoke_3 + 152
5 com.apple.AppKit 0x00007fff4106a834 ___NSMainRunLoopPerformBlockInModes_block_invoke + 25
6 com.apple.CoreFoundation 0x00007fff434c4ec4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
7 com.apple.CoreFoundation 0x00007fff434885e7 __CFRunLoopDoBlocks + 394
8 com.apple.CoreFoundation 0x00007fff43487d06 __CFRunLoopRun + 1174
9 com.apple.CoreFoundation 0x00007fff4348761e CFRunLoopRunSpecific + 455
10 com.apple.HIToolbox 0x00007fff426e61ab RunCurrentEventLoopInMode + 292
11 com.apple.HIToolbox 0x00007fff426e5ee5 ReceiveNextEventCommon + 603
12 com.apple.HIToolbox 0x00007fff426e5c76 _BlockUntilNextEventMatchingListInModeWithFilter + 64
13 com.apple.AppKit 0x00007fff40a7e77d _DPSNextEvent + 1135
14 com.apple.AppKit 0x00007fff40a7d46b -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
15 com.apple.AppKit 0x00007fff40a77588 -[NSApplication run] + 699
16 com.apple.AppKit 0x00007fff40a66ac8 NSApplicationMain + 777
17 libdyld.dylib 0x00007fff6f3de3d5 start + 1

--
Steve Mills
Drummer, Mac geek
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