Bug 154812 – REGRESSION(r197303): Web process crashes when starting the inspector after r197303

• Status: RESOLVED
• Resolution: FIXED
• Component: JavaScriptCore

[Carlos Garcia Campos]

Program received signal SIGSEGV, Segmentation fault.
0x00007efcf17aa10e in JSC::CodeBlock::insertBasicBlockBoundariesForControlFlowProfiler(WTF::RefCountedArray<JSC::Instruction>&) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
(gdb) bt
#0  0x00007efcf17aa10e in JSC::CodeBlock::insertBasicBlockBoundariesForControlFlowProfiler(WTF::RefCountedArray<JSC::Instruction>&) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#1  0x00007efcf17b8233 in JSC::CodeBlock::finishCreation(JSC::VM&, JSC::ScriptExecutable*, JSC::UnlinkedCodeBlock*, JSC::JSScope*) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#2  0x00007efcf1ce3f8a in JSC::ScriptExecutable::newCodeBlockFor(JSC::CodeSpecializationKind, JSC::JSFunction*, JSC::JSScope*, JSC::JSObject*&) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#3  0x00007efcf1ce4825 in JSC::ScriptExecutable::prepareForExecutionImpl(JSC::ExecState*, JSC::JSFunction*, JSC::JSScope*, JSC::CodeSpecializationKind) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#4  0x00007efcf1b00154 in JSC::Interpreter::execute(JSC::EvalExecutable*, JSC::ExecState*, JSC::JSValue, JSC::JSScope*) ()
   from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#5  0x00007efcf1d4a3a3 in JSC::globalFuncEval(JSC::ExecState*) () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#6  0x00007efc90000068 in ?? ()
#7  0x00007fff869bd0e0 in ?? ()
#8  0x00007efcf1b9ce32 in llint_entry () from /home/cgarcia/src/git/gnome/WebKit/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
Backtrace stopped: frame did not save the PC

The inspector works if I revert r197303 and thew follow up fix.

[Michael Bailey]

The report mentions GTK, but I see this in the nightly builds on OS X 10.11.3 as well, with the same stack trace.

[Andreas Kling]

<rdar://problem/24999034>

[Andreas Kling]

Created attachment 273182 [details]
Patch

[Geoffrey Garen]

Comment on attachment 273182 [details]
Patch

r=me

[WebKit Commit Bot]

Comment on attachment 273182 [details]
Patch

Clearing flags on attachment: 273182

Committed r197686: <http://trac.webkit.org/changeset/197686>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.