230572 2021-09-21 11:52:25 -0700 [ Mac ] TestWebKitAPI.Challenge.DeallocateDuringChallenge flakily crashes under DisplayLink::notifyObserversDisplayWasRefreshed 2022-02-14 09:28:58 -0800 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 1 ehutchison webkit-unassigned bfulgham ehutchison eric.carlson jer.noble sabouhallawa simon.fraser thorton webkit-bot-watchers-bugzilla webkit-bug-importer oldest_to_newest 1795692 0 ehutchison 2021-09-21 11:52:25 -0700 TestWebKitAPI.Challenge.DeallocateDuringChallenge is a flaky crash on Mac. History: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.Challenge.DeallocateDuringChallenge Results: https://ews-build.webkit.org/#/builders/3/builds/55987 Diff: Crashed TestWebKitAPI.Challenge.DeallocateDuringChallenge 2021-09-21 00:22:00.580 com.apple.WebKit.WebContent.Development[2040:68717] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.580 com.apple.WebKit.WebContent.Development[2042:68724] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.581 com.apple.WebKit.WebContent.Development[2039:68713] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.587 com.apple.WebKit.WebContent.Development[2044:68812] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.587 com.apple.WebKit.WebContent.Development[2047:68850] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.702 com.apple.WebKit.WebContent.Development[2048:68856] Application does not have permission to communicate with network resources. rc=1 : errno=3 2021-09-21 00:22:00.703 com.apple.WebKit.WebContent.Development[2051:68864] Application does not have permission to communicate with network resources. rc=1 : errno=3 Testing completed, Exit status: 3 Unable to reproduce locally. 1795694 1 webkit-bug-importer 2021-09-21 11:53:41 -0700 <rdar://problem/83362396> 1795876 3 ap 2021-09-21 17:26:18 -0700 Divide by zero! Crashed Thread: 14 CVDisplayLink Exception Type: EXC_ARITHMETIC (SIGFPE) Exception Codes: EXC_I386_DIV (divide by zero) Exception Note: EXC_CORPSE_NOTIFY Termination Signal: Floating point exception: 8 Termination Reason: Namespace SIGNAL, Code 0x8 Terminating Process: exc handler [81187] ... Thread 14 Crashed:: CVDisplayLink 0 com.apple.WebKit 0x000000010be4fab6 nextUpdate + 10 (DisplayUpdate.h:44) [inlined] 1 com.apple.WebKit 0x000000010be4fab6 WebKit::DisplayLink::notifyObserversDisplayWasRefreshed() + 302 (DisplayLink.cpp:243) 2 com.apple.WebKit 0x000000010be4f0f6 WebKit::DisplayLink::displayLinkCallback(__CVDisplayLink*, CVTimeStamp const*, CVTimeStamp const*, unsigned long long, unsigned long long*, void*) + 12 (DisplayLink.cpp:207) 3 com.apple.CoreVideo 0x00007fff2729114a 0x7fff2728e000 + 12618 4 com.apple.CoreVideo 0x00007fff27290579 0x7fff2728e000 + 9593 5 libsystem_pthread.dylib 0x00007fff2034b8fc 0x7fff20345000 + 26876 6 libsystem_pthread.dylib 0x00007fff20347443 0x7fff20345000 + 9283 1795877 4 ap 2021-09-21 17:26:54 -0700 This probably has nothing to do with this test, and is related to some preceding media one. 1840857 5 bfulgham 2022-02-12 20:23:33 -0800 This is actually: <rdar://76095261>