[Webkit-unassigned] [Bug 193770] [ Mojave Release ] ProcessSwap.PageShowHide is a flakey API crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193770

--- Comment #2 from Chris Dumez <cdumez at apple.com> ---
Never mind, I was able to reproduce:
Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [25431]

VM Regions Near 0:
--> 
    __TEXT                 0000000107242000-00000001076c7000 [ 4628K] r-x/rwx SM=COW  /Volumes/VOLUME/*

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_platform.dylib            0x00007fff77c4c712 _platform_strlen + 18
1   TestWebKitAPI                       0x00000001074d1b88 TestWebKitAPI::Printer::OnTestPartResult(testing::TestPartResult const&) + 302 (TestsController.cpp:43)
2   TestWebKitAPI                       0x00000001075b1c34 testing::internal::TestEventRepeater::OnTestPartResult(testing::TestPartResult const&) + 48
3   TestWebKitAPI                       0x00000001075a5155 testing::UnitTest::AddTestPartResult(testing::TestPartResult::Type, char const*, int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 717
4   TestWebKitAPI                       0x00000001075ae14d testing::internal::ReportFailureInUnknownLocation(testing::TestPartResult::Type, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 64
5   TestWebKitAPI                       0x00000001075aea41 void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) + 236
6   TestWebKitAPI                       0x00000001075ae906 testing::Test::Run() + 184
7   TestWebKitAPI                       0x00000001075af850 testing::TestInfo::Run() + 220
8   TestWebKitAPI                       0x00000001075affd9 testing::TestCase::Run() + 273
9   TestWebKitAPI                       0x00000001075b96e3 testing::internal::UnitTestImpl::RunAllTests() + 697
10  TestWebKitAPI                       0x00000001075b9313 bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) + 72
11  TestWebKitAPI                       0x00000001075b929e testing::UnitTest::Run() + 108
12  TestWebKitAPI                       0x00000001074d19ec TestWebKitAPI::TestsController::run(int, char**) + 120 (TestsController.cpp:86)
13  TestWebKitAPI                       0x0000000107588729 main + 344 (mainMac.mm:52)
14  libdyld.dylib                       0x00007fff77a64ed9 start + 1

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