<html>
    <head>
      <base href="https://bugs.webkit.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Crash when opening the inspector"
   href="https://bugs.webkit.org/show_bug.cgi?id=156788">156788</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Crash when opening the inspector
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Local Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>Regression
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>cgarcia&#64;igalia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bugs-noreply&#64;webkitgtk.org, sbarati&#64;apple.com, utatane.tea&#64;gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>It seems related to the profiler:

Program received signal SIGSEGV, Segmentation fault.
0x00007f04a6558830 in JSC::ExecState::vm() const () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
(gdb) bt
#0  0x00007f04a6558830 in JSC::ExecState::vm() const () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#1  0x00007f04a4b8cda6 in JSC::JSObject::calculatedClassName(JSC::JSObject*) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#2  0x00007f04a4c7fea1 in JSC::Structure::toStructureShape(JSC::JSValue) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#3  0x00007f04a4c97dc1 in JSC::TypeProfilerLog::processLogEntries(WTF::String const&amp;) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#4  0x00007f04a493348e in JSC::JIT::privateCompile(JSC::JITCompilationEffort) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#5  0x00007f04a47260a4 in JSC::JIT::compile(JSC::VM*, JSC::CodeBlock*, JSC::JITCompilationEffort) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#6  0x00007f04a49a9d3d in JSC::LLInt::jitCompileAndSetHeuristics(JSC::CodeBlock*, JSC::ExecState*) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#7  0x00007f04a499dbbb in llint_replace () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#8  0x00007f04a49af505 in llint_entry () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#9  0x00007f04a49b1988 in llint_entry () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#10 0x00007f04a49b1988 in llint_entry () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#11 0x00007f04a49b1988 in llint_entry () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#12 0x00007f04a49abb2e in vmEntryToJavaScript () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#13 0x00007f04a49488d2 in JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#14 0x00007f04a490c069 in JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#15 0x00007f04a4a97f84 in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#16 0x00007f04a4a97f99 in JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#17 0x00007f04a4a981d9 in JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, WTF::NakedPtr&lt;JSC::Exception&gt;&amp;) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#18 0x00007f04a65dd8d5 in WebCore::ScheduledAction::executeFunctionInContext(JSC::JSGlobalObject*, JSC::JSValue, WebCore::ScriptExecutionContext&amp;) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#19 0x00007f04a65ddcad in WebCore::ScheduledAction::execute(WebCore::Document&amp;) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#20 0x00007f04a6be4d8d in WebCore::DOMTimer::fired() () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#21 0x00007f04a6cddcda in WebCore::ThreadTimers::sharedTimerFiredInternal() () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#22 0x00007f04a4d6240a in WTF::RunLoop::TimerBase::TimerBase(WTF::RunLoop&amp;)::{lambda(void*)#1}::_FUN(void*) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#23 0x00007f049ffa1b8a in g_main_dispatch (context=0x1349880) at gmain.c:3154
#24 g_main_context_dispatch (context=context&#64;entry=0x1349880) at gmain.c:3769
#25 0x00007f049ffa1f08 in g_main_context_iterate (context=0x1349880, block=block&#64;entry=1, dispatch=dispatch&#64;entry=1, self=&lt;optimized out&gt;) at gmain.c:3840
#26 0x00007f049ffa2222 in g_main_loop_run (loop=0x1cfc9e0) at gmain.c:4034
#27 0x00007f04a4d627b0 in WTF::RunLoop::run() () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#28 0x00007f04a63669d2 in int WebKit::ChildProcessMain&lt;WebKit::WebProcess, WebKit::WebProcessMain&gt;(int, char**) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#29 0x00007f049b0f2610 in __libc_start_main (main=0x400af0 &lt;main&gt;, argc=2, argv=0x7ffd37864f58, init=&lt;optimized out&gt;, fini=&lt;optimized out&gt;, rtld_fini=&lt;optimized out&gt;, 
    stack_end=0x7ffd37864f48) at libc-start.c:291
#30 0x0000000000400b49 in _start ()</pre>
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