[Webkit-unassigned] [Bug 160782] LayoutTest editing/deleting/delete-empty-line-breaks-at-end-of-textarea.html "crashing" without a crashlog

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160782

Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |andersca at apple.com,
                   |                            |barraclough at apple.com

--- Comment #12 from Alexey Proskuryakov <ap at webkit.org> ---
What happens here is that editing/deleting/delete-emoji.html is extremely slow to repaint, and sometimes it repaints after finishing. When this happens, WebKitTestRunner cannot reset WebContent process for the next test, and attempts to terminate it, and to launch a new one.

However, calling WKPageTerminate() results in a processDidCrash() callback, and then WebKitTestRunner itself terminates with an exit(). It seems suspicious that we get a processDidCrash() when intentionally terminating.

    frame #12: 0x00007fff9857c767 libsystem_c.dylib`exit + 55
    frame #13: 0x00000001002f5b30 WebKitTestRunner`WTR::TestController::processDidCrash(this=0x00007fff5f9667a0) + 576 at TestController.cpp:1730
    frame #14: 0x00000001002daf2c WebKitTestRunner`WTR::TestController::processDidCrash(page=0x000061d000039880, clientInfo=0x00007fff5f9667a0) + 28 at TestController.cpp:1518
    frame #15: 0x00000001099ef958 WebKit`WKPageSetPageNavigationClient::NavigationClient::processDidCrash(this=0x0000610000049540, page=0x000061d000039898) + 264 at WKPage.cpp:2325
    frame #16: 0x000000010902b6c8 WebKit`WebKit::WebPageProxy::processDidCrash(this=0x000061d000039898) + 792 at WebPageProxy.cpp:5190
    frame #17: 0x00000001095cce52 WebKit`WebKit::WebProcessProxy::didClose(this=0x0000619000035780, (null)=0x000061400009d240) + 434 at WebProcessProxy.cpp:541
    frame #18: 0x00000001095d19d5 WebKit`WebKit::WebProcessProxy::requestTermination(this=0x0000619000035780) + 197 at WebProcessProxy.cpp:808
    frame #19: 0x0000000109000366 WebKit`WebKit::WebPageProxy::terminateProcess(this=0x000061d000039898) + 230 at WebPageProxy.cpp:2355
    frame #20: 0x00000001099bfdfd WebKit`::WKPageTerminate(pageRef=0x000061d000039880) + 29 at WKPage.cpp:409
    frame #21: 0x00000001002e2c8d WebKitTestRunner`WTR::TestController::terminateWebContentProcess(this=0x00007fff5f9667a0) + 109 at TestController.cpp:805
    frame #22: 0x00000001003389ec WebKitTestRunner`WTR::TestInvocation::invoke(this=0x0000611000079d00) + 2940 at TestInvocation.cpp:180
    frame #23: 0x00000001002ef2b9 WebKitTestRunner`WTR::TestController::runTest(this=<unavailable>, inputLine=<unavailable>) + 4873 at TestController.cpp:1098
    frame #24: 0x00000001002f1f5c WebKitTestRunner`WTR::TestController::runTestingServerLoop(this=0x00007fff5f9667a0) + 524 at TestController.cpp:1115
    frame #25: 0x00000001002d8a2f WebKitTestRunner`WTR::TestController::run(this=0x00007fff5f9667a0) + 159 at TestController.cpp:1123
    frame #26: 0x00000001002d7645 WebKitTestRunner`WTR::TestController::TestController(this=<unavailable>, argc=<unavailable>, argv=<unavailable>) + 8069 at TestController.cpp:126
    frame #27: 0x00000001002d8d73 WebKitTestRunner`WTR::TestController::TestController(this=0x00007fff5f9667a0, argc=2, argv=0x00007fff5f966a30) + 35 at TestController.cpp:123

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