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iOS Crash Log Shows High Offsets & ??? Modules in Local Debug Build (Binary Images Missing Main Binary)
Hi all, I'm encountering a strange crash issue during local iOS debugging on a real device, and I'm hoping someone can help explain it. The crash log contains unusually high offsets that are completely outside of any module address ranges listed in Binary Images. For example: 6 ??? 0x129ac0ee8 -[...:] + 1052 But the Binary Images section shows: 0x102358000 - 0x102363fff ChinaMobile arm64 ... 0x11bb2c000 - 0x11bdeffff ChinaMobile.debug.dylib arm64 ... ... There are two binaries for my app listed here, but neither matches that high crash address (0x129ac0ee8). Additionally, sometimes the Binary Images section doesn't even include my app's binary at all, which makes the crash logs even harder to analyze. This crash definitely happens inside my main app’s business code, yet the crash offset doesn’t match any listed binary range. Also, the crash logs contain many ??? module names and missing symbols, even though I'm running a Debug build locally, and I know how to symbolize logs manually. My Questions: Why does the crash log show such high offsets, far beyond any Binary Images' range? Why does it have so many ??? entries and missing symbols, even in a local debug build? Could this be related to Xcode version, build settings, or some project misconfiguration? Any suggestions or insights would be greatly appreciated!
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66
Jul ’25
AXSpeech Thread Crash SEGV_ACCERR
Hi everyone, I've encountered a rare and strange crash in my app that I can't consistently reproduce. The crash seems to occur deep within Apple's internal frameworks, and I can't pinpoint which line of my own code is causing it. Here's the crash stack trace: #44 AXSpeech SIGSEGV SEGV_ACCERR 0 CoreFoundation ___CFCheckCFInfoPACSignature + 4 1 CoreFoundation _CFRunLoopSourceSignal + 28 2 Foundation _performQueueDequeue + 492 3 Foundation ___NSThreadPerformPerform + 88 4 CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 5 CoreFoundation ___CFRunLoopDoSource0 + 176 6 CoreFoundation ___CFRunLoopDoSources0 + 340 7 CoreFoundation ___CFRunLoopRun + 828 8 CoreFoundation _CFRunLoopRunSpecific + 608 9 Foundation -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 10 TextToSpeech _TTSCFAttributedStringCreateStringByBracketingAttributeWithString + 776 11 Foundation ___NSThread__start__ + 732 12 libsystem_pthread.dylib __pthread_start + 136 Sometimes, instead of line 10 referencing _TTSCFAttributedStringCreateStringByBracketingAttributeWithString, it shows: 10 TextToSpeech LogWarning(char const*, ...) + 7288 Has anyone experienced a similar issue or know what might be triggering this crash? Any guidance on how to investigate or resolve this would be greatly appreciated. Thank you!
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Jun ’25