Hi! I recently encountered a crash:
OS Version: tvOS 14.5
Report Version: 104
Exception Type: Unknown (SIGSEGV)
Exception Codes: SEGV_ACCERR at 0x0000000000000040
Crashed Thread: 9
Application Specific Information:
ZTUM
Thread 9 Crashed:
0 libswift_Concurrency.dylib 0x10127d5a4 swift::TaskGroup::offer
1 libswift_Concurrency.dylib 0x10127adb0 swift::AsyncTask::completeFuture
2 libswift_Concurrency.dylib 0x10127bec4 swift_continuation_await
3 libswift_Concurrency.dylib 0x101278bfc swift::runJobInEstablishedExecutorContext
Had no luck finding explanations for what "ZTUM" means in general (searched the internet, scanned related binaries, searched the Swift repo), much less what it means when coinciding with TaskGroup
. Thus,
- What does
ZTUM
mean? - How can I approach debugging crashes in
Concurrency.TaskGroup
like the one in the stack trace?
Regards,