Hi All,
I haven't been able to find any information online about anyone else encountering this crash issue, but there appears to be an iOS 12 specific problem with AVSpeechSynthesizer / SiriTTS:
SIGABRT ABORT 0x00000001dc8b9104
Crashed: Thread 25
0 libsystem_kernel.dylib 0x1dc8b9104 __pthread_kill + 8
1 libsystem_pthread.dylib 0x1dc9340e0 pthread_kill$VARIANT$mp + 380
2 libsystem_c.dylib 0x1dc810d78 abort + 140
3 libsystem_malloc.dylib 0x1dc90d768 _malloc_put + 570
4 libsystem_malloc.dylib 0x1dc90d998 malloc_zone_error + 104
5 libsystem_malloc.dylib 0x1dc90d258 free_list_checksum_botch + 36
6 libsystem_malloc.dylib 0x1dc9091c4 tiny_free_list_remove_ptr + 488
7 libsystem_malloc.dylib 0x1dc909c28 tiny_free_no_lock + 672
8 libsystem_malloc.dylib 0x1dc90adc8 free_tiny + 376
9 SiriTTS 0x1e99d418c Psola::modify(int, std::__1::vector<float, std::__1::allocator<float> >&, PsolaInputData const&) + 2700
10 SiriTTS 0x1e99e7b3c PsolaStream::process_segment(AudioSegmentation&, PsolaContext&) + 2408
11 SiriTTS 0x1e99e80c4 PsolaStream::write(AudioSegmentation&) + 644
12 SiriTTS 0x1e9a23fe8 UnitSegmentStream::flush() + 104
13 SiriTTS 0x1e99df78c ViterbiStream::flush() + 992
14 SiriTTS 0x1e9a7e5ec PreselectStream::write(UnitSelectionFeature&) + 828
15 SiriTTS 0x1e9a3f180 UnitSelectionFeatureStream::write(FrontendFeature&) + 2248
16 SiriTTS 0x1e9a7a62c PromptStream::write(FrontendFeature&) + 292
17 SiriTTS 0x1e9a26788 NashvilleAdapterStream::write(NashvilleInput&) + 6084
18 SiriTTS 0x1e99e1f28 gryphon_featextract_Process(_LH_SAFEHANDLE_TAG, _LH_SAFEHANDLE_TAG, TTSEG_PROCESSING_COMP_RESULTS_E*) + 1408
19 SiriTTS 0x1e9bef72c ttseg_loc_ProcessLoop + 632
20 SiriTTS 0x1e9bee04c ttseg_loc_Synthesize + 64
21 SiriTTS 0x1e9bedf50 ttseg_Synthesize + 236
22 SiriTTS 0x1e9d25488 ssft_hlp_ProcessMessage2Speech + 264
23 SiriTTS 0x1e9d25684 ve_ttsProcessText2Speech + 280
24 TTSSpeechBundle 0x117e983bc (Missing)
25 TTSSpeechBundle 0x117eab74c (Missing)
26 TTSSpeechBundle 0x117e8e568 (Missing)
27 TTSSpeechBundle 0x117eab43c (Missing)
28 TTSSpeechBundle 0x117eaa64c (Missing)
29 libsystem_pthread.dylib 0x1dc93d2fc _pthread_body + 128
30 libsystem_pthread.dylib 0x1dc93d25c _pthread_start + 48
31 libsystem_pthread.dylib 0x1dc940d08 thread_start + 4
Has anyone else seen this happen? Fabric suggests that this may stem from a Heap Corruption and that the stack may not actually point to the problem; however, I have run Address Sanitizer and several scenarios trying to replicate the problem locally with no luck.
Any help would be appreciated!