[Webkit-unassigned] [Bug 107033] New: REGRESSION: Several tests crashing after r139853

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=107033

           Summary: REGRESSION: Several tests crashing after r139853
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: leviw at chromium.org
                CC: keishi at webkit.org, pmuellr at yahoo.com,
                    pfeldman at chromium.org, yurys at chromium.org,
                    apavlov at chromium.org, loislo at chromium.org,
                    vsevik at chromium.org,
                    web-inspector-bugs at googlegroups.com,
                    kkania at chromium.org


Falkiness dashboard: http://goo.gl/MTsB7

Failing tests: 
fast/frames/valid.html
fast/events/form-iframe-target-before-load-crash.html
fast/events/before-unload-with-subframes.html
fast/css/stylesheet-enable-first-alternate-link.html

Here's an example crash:
crash log for DumpRenderTree (pid 2621):
STDOUT: <empty>
STDERR: Received signal 11 <unknown> 000000000000
STDERR:  [0x7fe875fbf88e] base::debug::StackTrace::StackTrace()
STDERR:  [0x7fe875fbf138] base::debug::(anonymous namespace)::StackDumpSignalHandler()
STDERR:  [0x7fe86bd368f0] <unknown>
STDERR:  [0x7fe871f0e878] WebCore::Frame::page()
STDERR:  [0x7fe871f0eab3] WebCore::InspectorInstrumentation::instrumentingAgentsForFrame()
STDERR:  [0x7fe8733d0e50] WebCore::InspectorInstrumentation::frameClearedScheduledNavigation()
STDERR:  [0x7fe8733d09ab] WebCore::NavigationScheduler::timerFired()
STDERR:  [0x7fe8733d2c5c] WebCore::Timer<>::fired()
STDERR:  [0x7fe872b97aa5] WebCore::ThreadTimers::sharedTimerFiredInternal()
STDERR:  [0x7fe872b979cf] WebCore::ThreadTimers::sharedTimerFired()
STDERR:  [0x7fe8763865d1] webkit_glue::WebKitPlatformSupportImpl::DoTimeout()
STDERR:  [0x7fe87638795d] base::internal::RunnableAdapter<>::Run()
STDERR:  [0x7fe87638784b] base::internal::InvokeHelper<>::MakeItSo()
STDERR:  [0x7fe87638778b] base::internal::Invoker<>::Run()
STDERR:  [0x7fe875fb51a5] base::Callback<>::Run()
STDERR:  [0x7fe87607a787] base::Timer::RunScheduledTask()
STDERR:  [0x7fe87607a87b] base::BaseTimerTaskInternal::Run()
STDERR:  [0x7fe87607abd7] base::internal::RunnableAdapter<>::Run()
STDERR:  [0x7fe87607ab5b] base::internal::InvokeHelper<>::MakeItSo()
STDERR:  [0x7fe87607ab07] base::internal::Invoker<>::Run()
STDERR:  [0x7fe875fb51a5] base::Callback<>::Run()
STDERR:  [0x7fe875ffab2b] MessageLoop::RunTask()
STDERR:  [0x7fe875ffac46] MessageLoop::DeferOrRunPendingTask()
STDERR:  [0x7fe875ffb4db] MessageLoop::DoWork()
STDERR:  [0x7fe875f99736] base::MessagePumpGlib::RunWithDispatcher()
STDERR:  [0x7fe875f99b16] base::MessagePumpGlib::Run()
STDERR:  [0x7fe875ffa71b] MessageLoop::RunInternal()
STDERR:  [0x7fe875ffa5d2] MessageLoop::RunHandler()
STDERR:  [0x7fe87603282e] base::RunLoop::Run()
STDERR:  [0x7fe875ff9f00] MessageLoop::Run()
STDERR:  [0x0000005184ae] webkit_support::RunMessageLoop()
STDERR:  [0x000000499986] TestShell::waitTestFinished()
STDERR:  [0x000000490c4c] TestShell::runFileTest()
STDERR:  [0x00000046c974] runTest()
STDERR:  [0x00000046d4ca] main
STDERR:  [0x7fe86b9c1c4d] <unknown>
STDERR:  [0x00000046ad09] <unknown>
STDERR:   r8: 000000000000004c  r9: 0101010101010101 r10: 0000000000000000 r11: 00007fe86ba28c96
STDERR:  r12: 0000000000000001 r13: 00007fffcd83ae10 r14: 0000000000000000 r15: 0000000000000000
STDERR:   di: cdcdcdcdcdcdcdcd  si: 0000000000000000  bp: 00007fffcd8394b0  bx: 0000000000000000
STDERR:   dx: 0000000000001cf7  ax: cdcdcdcdcdcdcdcd  cx: 0000000000185fa0  sp: 00007fffcd8394b0
STDERR:   ip: 00007fe871f0e878 efl: 0000000000010282 cgf: 0000000000000033 erf: 0000000000000000
STDERR:  trp: 000000000000000d msk: 0000000000000000 cr2: 0000000000000000

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