[Webkit-unassigned] [Bug 45256] New: Web Inspector: REGRESSION(66720): Tests crash on Qt bots

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=45256

           Summary: Web Inspector: REGRESSION(66720): Tests crash on Qt
                    bots
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ossy at webkit.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, loislo at chromium.org


After http://trac.webkit.org/changeset/66720 there are
some flakey crashes on Qt Linux Release bot. :/

Fortunately I reproduced the crash on our 64 bit relase
and debug bots, where 50-60 tests crash always.

$ WebKitTools/Scripts/run-webkit-tests --debug -exit-after-n-crashes 1

fast/dom/location-new-window-no-crash.html -> crashed
Exiting early after 1 crashes and 0 timeouts. 4946 tests run.

$ gdb WebKitBuild/Debug/bin/DumpRenderTree core

#0  0x00007fd89917f702 in WebCore::InspectorFrontendClientQt::inspectorClientDestroyed (this=0x908e5a0a39be2ed) at ../../../WebKit/qt/WebCoreSupport/InspectorClientQt.cpp:344
344         m_inspectorClient = 0;
(gdb) bt
#0  0x00007fd89917f702 in WebCore::InspectorFrontendClientQt::inspectorClientDestroyed (this=0x908e5a0a39be2ed) at ../../../WebKit/qt/WebCoreSupport/InspectorClientQt.cpp:344
#1  0x00007fd89917f73e in WebCore::InspectorClientQt::inspectorDestroyed (this=0x739810) at ../../../WebKit/qt/WebCoreSupport/InspectorClientQt.cpp:104
#2  0x00007fd898d3e9f6 in WebCore::InspectorController::inspectedPageDestroyed (this=0x739b30) at ../../../WebCore/inspector/InspectorController.cpp:212
#3  0x00007fd898eadab4 in ~Page (this=0x739840) at ../../../WebCore/page/Page.cpp:211
#4  0x00007fd8991a9357 in ~QWebPagePrivate (this=0x739350) at ../../../WebKit/qt/Api/qwebpage.cpp:319
#5  0x00007fd8991a98be in ~QWebPage (this=0x7391d0) at ../../../WebKit/qt/Api/qwebpage.cpp:1891
#6  0x0000000000428de3 in ~WebPage (this=0x7391d0) at /home/oszi/WebKit/WebKitTools/DumpRenderTree/qt/DumpRenderTreeQt.cpp:168
#7  0x00007fd8991abf9a in QWebViewPrivate::detachCurrentPage (this=0x6f2080) at ../../../WebKit/qt/Api/qwebview.cpp:372
#8  0x00007fd8991accd9 in ~QWebViewPrivate (this=0x6f2080) at ../../../WebKit/qt/Api/qwebview.cpp:60
#9  0x00007fd8991acdce in ~QWebView (this=0x738cc0) at ../../../WebKit/qt/Api/qwebview.cpp:329
#10 0x0000000000425b73 in ~DumpRenderTree (this=0x7fffffffea80) at /home/oszi/WebKit/WebKitTools/DumpRenderTree/qt/DumpRenderTreeQt.cpp:505
#11 0x000000000043b0a3 in main (argc=2, argv=0x7fffffffecb8) at /home/oszi/WebKit/WebKitTools/DumpRenderTree/qt/main.cpp:171

Yury, Pavel, any idea how to fix it?

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