Hi everyone
Since some time we have really weird crash in our concurrency stack :/
We made many research and tests but it's looking like totally random and I have no more idea now ...
Some examples :
Crashed: com.apple.root.user-initiated-qos.cooperative
0 libswift_Concurrency.dylib 0x43710 performEscalationAction(swift::TaskStatusRecord*, swift::JobPriority) + 28
1 libswift_Concurrency.dylib 0x43160 swift_task_escalateImpl(swift::AsyncTask*, swift::JobPriority) + 276
2 libswift_Concurrency.dylib 0x3ee04 swift::AsyncTask::waitFuture(swift::AsyncTask*, swift::AsyncContext*, void (swift::AsyncContext* swift_async_context) swiftasynccall*, swift::AsyncContext*, swift::OpaqueValue*) + 552
3 libswift_Concurrency.dylib 0x3f584 swift_task_future_wait_throwingImpl(swift::OpaqueValue*, swift::AsyncContext*, swift::AsyncTask*, void (swift::AsyncContext* swift_async_context, void* swift_context) swiftasynccall*, swift::AsyncContext*) + 144
4 libswift_Concurrency.dylib 0x3b7cc swift::runJobInEstablishedExecutorContext(swift::Job*) + 244
5 libswift_Concurrency.dylib 0x3c1e8 swift_job_runImpl(swift::Job*, swift::ExecutorRef) + 72
6 libdispatch.dylib 0x15164 _dispatch_root_queue_drain + 396
7 libdispatch.dylib 0x1596c _dispatch_worker_thread2 + 164
8 libsystem_pthread.dylib 0x1080 _pthread_wqthread + 228
9 libsystem_pthread.dylib 0xe5c start_wqthread + 8
Crashed: com.apple.root.user-initiated-qos.cooperative
0 libswift_Concurrency.dylib 0x30f9c waitForStatusRecordUnlock(swift::AsyncTask*, swift::ActiveTaskStatus&) + 72
1 libswift_Concurrency.dylib 0x2fd00 acquireStatusRecordLock(swift::AsyncTask*, llvm::Optional<(anonymous namespace)::StatusRecordLockRecord>&, LockContext) + 148
2 libswift_Concurrency.dylib 0x30c28 swift_task_escalateImpl(swift::AsyncTask*, swift::JobPriority) + 84
3 libswift_Concurrency.dylib 0x2da54 swift::AsyncTask::waitFuture(swift::AsyncTask*, swift::AsyncContext*, void (swift::AsyncContext* swift_async_context) swiftasynccall*, swift::AsyncContext*, swift::OpaqueValue*) + 480
4 libswift_Concurrency.dylib 0x2df68 swift_task_future_wait_throwingImpl(swift::OpaqueValue*, swift::AsyncContext*, swift::AsyncTask*, void (swift::AsyncContext* swift_async_context, void* swift_context) swiftasynccall*, swift::AsyncContext*) + 84
5 libswift_Concurrency.dylib 0x2b0f0 swift::runJobInEstablishedExecutorContext(swift::Job*) + 132
6 libswift_Concurrency.dylib 0x2b9f8 swift_job_runImpl(swift::Job*, swift::ExecutorRef) + 72
7 libdispatch.dylib 0x482f0 _dispatch_root_queue_drain + 328
8 libdispatch.dylib 0x48acc _dispatch_worker_thread2 + 160
9 libsystem_pthread.dylib 0x4e48 _pthread_wqthread + 224
10 libsystem_pthread.dylib 0x49f0 start_wqthread + 8
Crashed: NSOperationQueue 0x1075db8e0 (QOS: UNSPECIFIED)
0 libobjc.A.dylib 0x39c8 objc_retain + 8
1 CFNetwork 0x42db0 CFURLRequestSetShouldStartSynchronously + 34084
2 CFNetwork 0x4920c CFURLCacheCurrentDiskUsage + 1020
3 CFNetwork 0x46dd4 CFURLRequestSetHTTPRequestBodyParts + 9196
4 BRApiKit 0x57814 HTTPMetrics.init(metrics:task:) + 61 (HTTPMetrics.swift:61)
5 BRApiKit 0x39f78 specialized HTTPDataLoader.urlSession(_:task:didFinishCollecting:) + 281 (HTTPDataLoader.swift:281)
6 BRApiKit 0x38310 @objc HTTPDataLoader.urlSession(_:task:didFinishCollecting:) + 4409131792 (<compiler-generated>:4409131792)
7 CFNetwork 0x26cf4 CFURLRequestCopyHTTPRequestBodyStream + 2320
8 Foundation 0x51bfc __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 24
9 Foundation 0x63f74 -[NSBlockOperation main] + 104
10 Foundation 0x3c1f4 __NSOPERATION_IS_INVOKING_MAIN__ + 24
11 Foundation 0x4d5bc -[NSOperation start] + 788
12 Foundation 0x50c48 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 24
13 Foundation 0x5edf0 __NSOQSchedule_f + 184
14 libdispatch.dylib 0x12830 _dispatch_block_async_invoke2 + 148
15 libdispatch.dylib 0x3a30 _dispatch_client_callout + 20
16 libdispatch.dylib 0x6eec _dispatch_continuation_pop + 500
17 libdispatch.dylib 0x65f0 _dispatch_async_redirect_invoke + 736
18 libdispatch.dylib 0x15164 _dispatch_root_queue_drain + 396
19 libdispatch.dylib 0x1596c _dispatch_worker_thread2 + 164
20 libsystem_pthread.dylib 0x1080 _pthread_wqthread + 228
21 libsystem_pthread.dylib 0xe5c start_wqthread + 8
We have many other like that :/
Any idea what we are missing and why we have some random crash like that ?
Thanks for your help