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[Crashlytics] Crash: -[CLSNetworkClient restartTask:] #5984

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colin1994 opened this issue Jul 7, 2020 · 2 comments · Fixed by #6265
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[Crashlytics] Crash: -[CLSNetworkClient restartTask:] #5984

colin1994 opened this issue Jul 7, 2020 · 2 comments · Fixed by #6265
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@morganchen12
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api: crashlytics macOS Issues or feature requests for macOS.

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@colin1994
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[REQUIRED] Step 1: Describe your environment

  • Xcode version: 11.4.1
  • Firebase Component: Crashlytics / Fabric
  • Component version: Crashlytics v.3.14.0 / Fabric v.1.10.2
  • Installation method: CocoaPods

[REQUIRED] Step 2: Describe the problem

We encountered a crash, only once, without knowing its specific path and the root cause.
But looking at the log, it seems to be a fabric problem.

Crashed Thread: 4 Dispatch queue: com.twitter.crashlytics.mac.work-queue (QOS: UNSPECIFIED)
name=NSInvalidArgumentException,reason:Cannot create task from nil request

Date/Time:             2020-07-03 12:23:10.211 +0800
OS Version:            Mac OS X 10.15.5 (19F101)
Report Version:        12
Bridge OS Version:     4.5 (17P5300)

Time Awake Since Boot: 62000 seconds

System Integrity Protection: disabled

Crashed Thread:        4  Dispatch queue: com.twitter.crashlytics.mac.work-queue (QOS: UNSPECIFIED)

Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [75629]


0   CoreFoundation                      0x00007fff336e3be7 __exceptionPreprocess + 250
1   libobjc.A.dylib                     0x00007fff6c4bb5bf objc_exception_throw + 48
2   CFNetwork                           0x00007fff31fa194e CFURLConnectionInvalidateConnectionCache + 21331
3   CFNetwork                           0x00007fff31fa778f CFURLConnectionInvalidateConnectionCache + 45460
4   CFNetwork                           0x00007fff31fa78bf CFURLConnectionInvalidateConnectionCache + 45764
5   libdispatch.dylib                   0x00007fff6d609658 _dispatch_client_callout + 8
6   libdispatch.dylib                   0x00007fff6d6156ec _dispatch_lane_barrier_sync_invoke_and_complete + 60
7   CFNetwork                           0x00007fff31fa0e15 CFURLConnectionInvalidateConnectionCache + 18458
8   CFNetwork                           0x00007fff31fa1496 CFURLConnectionInvalidateConnectionCache + 20123
9   MyApp                    0x00000001102125e3 -[CLSNetworkClient startNewUploadRequest:filePath:] + 209
10  MyApp                    0x0000000110213186 __32-[CLSNetworkClient restartTask:]_block_invoke + 114
11  Foundation                          0x00007fff35cdfac5 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
12  Foundation                          0x00007fff35cdf9e6 -[NSBlockOperation main] + 80
13  Foundation                          0x00007fff35cdf981 __NSOPERATION_IS_INVOKING_MAIN__ + 17
14  Foundation                          0x00007fff35cdebb3 -[NSOperation start] + 722
15  Foundation                          0x00007fff35cde8d9 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 17
16  Foundation                          0x00007fff35cde7a9 __NSOQSchedule_f + 182
17  libdispatch.dylib                   0x00007fff6d6152b9 _dispatch_block_async_invoke2 + 83
18  libdispatch.dylib                   0x00007fff6d609658 _dispatch_client_callout + 8
19  libdispatch.dylib                   0x00007fff6d60b818 _dispatch_continuation_pop + 414
20  libdispatch.dylib                   0x00007fff6d60af16 _dispatch_async_redirect_invoke + 703
21  libdispatch.dylib                   0x00007fff6d617957 _dispatch_root_queue_drain + 326
22  libdispatch.dylib                   0x00007fff6d618097 _dispatch_worker_thread2 + 92
23  libsystem_pthread.dylib             0x00007fff6d8639f7 _pthread_wqthread + 220
24  libsystem_pthread.dylib             0x00007fff6d862b77 start_wqthread + 15

I hope you can help confirm it.
Thank you!
@ryanwilson ryanwilson added macOS Issues or feature requests for macOS. needs-attention labels Jul 7, 2020
@morganchen12
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Is this crash reproducible on Crashlytics 4.0.0 or higher?

@colin1994
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Is this crash reproducible on Crashlytics 4.0.0 or higher?

Sorry, we can't reproduce this crash. It only appeared once on Crashlytics v.3.14.0

@morganchen12 morganchen12 mentioned this issue Aug 12, 2020
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Fix occasional NSURLSessionTask creation crash firebase/firebase-ios-sdk
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@ryanwilson @TKBurner @morganchen12 @colin1994 @google-oss-bot