46240 2010-09-21 19:53:58 -0700 REGRESSION: Web Inspector: Crash closing window with open Inspector 2010-09-22 09:53:13 -0700 1 1 1 Unclassified WebKit Web Inspector (Deprecated) 528+ (Nightly build) Mac OS X 10.6 RESOLVED DUPLICATE 44230 P1 Normal --- 0 s+webkit webkit-unassigned bweinstein joepeck keishi loislo pfeldman pmuellr rik timothy yurys oldest_to_newest 282742 0 s+webkit 2010-09-21 19:53:58 -0700 r67472 Steps to reproduce: 1. Launch 2. Open the inspector 3. Close the browser window I can reproduce fairly consistently, but not 100% of the time. Process: Safari [18275] Path: /Applications/Safari.app/Contents/MacOS/Safari Identifier: org.webkit.nightly.WebKit Version: r67472 (67472) Code Type: X86-64 (Native) Parent Process: launchd [175] Date/Time: 2010-09-21 22:31:26.070 -0400 OS Version: Mac OS X 10.6.4 (10F569) Report Version: 6 Interval Since Last Report: 6432305 sec Crashes Since Last Report: 55 Per-App Interval Since Last Report: 187482 sec Per-App Crashes Since Last Report: 1 Anonymous UUID: 24E4CADA-DF7C-479C-B204-B47FAE162734 Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010 Crashed Thread: 0 Dispatch queue: com.apple.main-thread Application Specific Information: objc_msgSend() selector name: _isClosed Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x00007fff85e0d11c objc_msgSend + 40 1 com.apple.WebKit 0x0000000100a437b4 -[WebInspectorWindowController close] + 84 2 com.apple.WebKit 0x0000000100a43cef -[WebInspectorWindowController destroyInspectorView:] + 127 3 com.apple.WebCore 0x000000010106f10b WebCore::InspectorFrontendHost::disconnectFromBackend() + 27 4 com.apple.WebCore 0x0000000101228636 WebCore::jsInspectorFrontendHostPrototypeFunctionDisconnectFromBackend(JSC::ExecState*) + 118 5 ??? 0x000020f6780001aa 0 + 36242947309994 6 com.apple.JavaScriptCore 0x00000001007e068f JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, JSC::JSValue*) + 911 282992 1 joepeck 2010-09-22 09:53:13 -0700 Thanks for filing a bug. I saw another similar bug, that may have fixed this case but still isn't completely closed yet: <http://webkit.org/b/44230> REGRESSION: Crash occurs at objc_msgSend when closing a window that is displaying the web inspector *** This bug has been marked as a duplicate of bug 44230 ***