[Webkit-unassigned] [Bug 69510] New: [WK2] [GTK] fast/css/webkit-mask-crash-fieldset-legend.html asserts webkit process

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=69510

           Summary: [WK2] [GTK]
                    fast/css/webkit-mask-crash-fieldset-legend.html
                    asserts webkit process
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: alex at igalia.com


This is the backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x00007f2e6131b9ca in WebCore::GraphicsContext::~GraphicsContext (this=0x132c5b0, __in_chrg=<value optimized out>) at ../../../Source/WebCore/platform/graphics/GraphicsContext.cpp:91
91        ASSERT(!m_transparencyCount);
(gdb) bt
#0  0x00007f2e6131b9ca in WebCore::GraphicsContext::~GraphicsContext (this=0x132c5b0, __in_chrg=<value optimized out>) at ../../../Source/WebCore/platform/graphics/GraphicsContext.cpp:91
#1  0x00007f2e60a41960 in WTF::deleteOwnedPtr<WebCore::GraphicsContext> (ptr=0x132c5b0) at ../../../Source/JavaScriptCore/wtf/OwnPtrCommon.h:53
#2  0x00007f2e60a40b19 in WTF::OwnPtr<WebCore::GraphicsContext>::~OwnPtr (this=0x7fff1adfd2f0, __in_chrg=<value optimized out>) at ../../../Source/JavaScriptCore/wtf/OwnPtr.h:54
#3  0x00007f2e60bbf378 in WebKit::DrawingAreaImpl::display (this=0x123fce0, updateInfo=...) at ../../../Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:655
#4  0x00007f2e60bbea5d in WebKit::DrawingAreaImpl::display (this=0x123fce0) at ../../../Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:566
#5  0x00007f2e60bbe8f4 in WebKit::DrawingAreaImpl::displayTimerFired (this=0x123fce0) at ../../../Source/WebKit2/WebProcess/WebPage/DrawingAreaImpl.cpp:545
#6  0x00007f2e60bc00b2 in Timer<WebKit::DrawingAreaImpl>::fired (this=0x123fd70) at ../../../Source/WebKit2/Platform/RunLoop.h:127
#7  0x00007f2e60a38339 in RunLoop::TimerBase::timerFiredCallback (timer=0x123fd70) at ../../../Source/WebKit2/Platform/gtk/RunLoopGtk.cpp:106
#8  0x00007f2e5c02bc09 in g_timeout_dispatch (source=0x12b4da0, callback=0x7f2e60a382ee <RunLoop::TimerBase::timerFiredCallback(RunLoop::TimerBase*)>, user_data=0x123fd70) at gmain.c:3904
#9  0x00007f2e5c02860c in g_main_dispatch (context=0x11fa0f0) at gmain.c:2439
#10 0x00007f2e5c029b52 in g_main_context_dispatch (context=0x11fa0f0) at gmain.c:3008
#11 0x00007f2e5c02a008 in g_main_context_iterate (context=0x11fa0f0, block=1, dispatch=1, self=0x11bd8b0) at gmain.c:3086
#12 0x00007f2e5c02a766 in g_main_loop_run (loop=0x11fa3a0) at gmain.c:3294
#13 0x00007f2e60a3810d in RunLoop::run () at ../../../Source/WebKit2/Platform/gtk/RunLoopGtk.cpp:56
#14 0x00007f2e60b3f5b1 in WebKit::WebProcessMainGtk (argc=2, argv=0x7fff1adfd878) at ../../../Source/WebKit2/WebProcess/gtk/WebProcessMainGtk.cpp:64
#15 0x0000000000400984 in main (argc=2, argv=0x7fff1adfd878) at ../../../Source/WebKit2/gtk/MainGtk.cpp:31

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