Bug 14207

Summary: REGRESSION: Crash after closing a tab with Google Maps Street View
Product: WebKit Reporter: Richard Mlynarik <Mly>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Major CC: mbritto, mitz, rachael, sroret, troyb
Priority: P1 Keywords: GoogleBug, HasReduction, Regression
Version: 523.x (Safari 3)   
Hardware: Mac (PowerPC)   
OS: OS X 10.4   
Attachments:
Description Flags
proposed fix
mjs: review-
mitz test case & mbritto fix darin: review+

Richard Mlynarik
Reported 2007-06-17 22:30:16 PDT
I very very much doubt I can reproduce this. I had numerous windows with numerous open. In the front window, I had two or three tabs open. The last one was maps.google.com, and I was looking at some "Street View" data, which if I recall correctly involves the (hateful, loathesome, evil) Flash plugin. I closed the tab (mouse-click, not command-W), then ka-boom. Good luck extracting anything from this. Latest nightly Webkit (23558)/ Date/Time: 2007-06-17 22:24:35.121 -0700 OS Version: 10.4.9 (Build 8P135) Report Version: 4 Command: Safari Path: /Applications/Safari.app/Contents/MacOS/Safari Parent: WindowServer [102] Version: r23558 (23558) PID: 5104 Thread: 0 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000024 Thread 0 Crashed: 0 com.apple.JavaScriptCore 0x0044e3bc WTF::HashSet<KJS::RuntimeObjectImp*, WTF::PtrHash<KJS::RuntimeObjectImp*>, WTF::HashTraits<KJS::RuntimeObjectImp*> >::add(KJS::RuntimeObjectImp* const&) + 28 1 <<00000000>> 0xbfffb0e0 0 + -1073762080 2 com.apple.JavaScriptCore 0x0044cf54 KJS::Bindings::RootObject::addRuntimeObject(KJS::RuntimeObjectImp*) + 36 3 com.apple.WebCore 0x0129c030 WebCore::getRuntimeObject(KJS::ExecState*, WebCore::Node*) + 240 4 com.apple.WebCore 0x012a10c0 WebCore::runtimeObjectCustomGetOwnPropertySlot(KJS::ExecState*, KJS::Identifier const&, KJS::PropertySlot&, WebCore::JSHTMLElement*, WebCore::HTMLElement*) + 48 5 com.apple.WebCore 0x014db294 WebCore::JSHTMLObjectElement::getOwnPropertySlot(KJS::ExecState*, KJS::Identifier const&, KJS::PropertySlot&) + 116 6 com.apple.JavaScriptCore 0x004ba1e8 KJS::DotAccessorNode::evaluate(KJS::ExecState*) + 216 7 com.apple.JavaScriptCore 0x004b2ed8 KJS::EqualNode::evaluate(KJS::ExecState*) + 56 8 com.apple.JavaScriptCore 0x004c8094 KJS::IfNode::execute(KJS::ExecState*) + 100 9 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 10 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 11 com.apple.JavaScriptCore 0x004c6c70 KJS::ForNode::execute(KJS::ExecState*) + 560 12 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 13 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 14 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 15 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 16 com.apple.JavaScriptCore 0x004badd0 KJS::FunctionCallDotNode::evaluate(KJS::ExecState*) + 832 17 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 18 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 19 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 20 com.apple.JavaScriptCore 0x004c7374 KJS::WhileNode::execute(KJS::ExecState*) + 500 21 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 22 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 23 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 24 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 25 com.apple.JavaScriptCore 0x004badd0 KJS::FunctionCallDotNode::evaluate(KJS::ExecState*) + 832 26 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 27 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 28 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 29 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 30 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 31 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 32 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 33 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 34 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 35 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 36 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 37 com.apple.JavaScriptCore 0x004c4e18 KJS::FunctionProtoFunc::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 3464 38 com.apple.JavaScriptCore 0x004badd0 KJS::FunctionCallDotNode::evaluate(KJS::ExecState*) + 832 39 com.apple.JavaScriptCore 0x004c8ae8 KJS::ReturnNode::execute(KJS::ExecState*) + 232 40 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 41 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 42 com.apple.JavaScriptCore 0x004c8188 KJS::IfNode::execute(KJS::ExecState*) + 344 43 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 44 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 45 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 46 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 47 com.apple.JavaScriptCore 0x004badd0 KJS::FunctionCallDotNode::evaluate(KJS::ExecState*) + 832 48 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 49 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 50 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 51 com.apple.JavaScriptCore 0x004c55c8 KJS::TryNode::execute(KJS::ExecState*) + 104 52 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 53 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 54 com.apple.JavaScriptCore 0x004c81dc KJS::IfNode::execute(KJS::ExecState*) + 428 55 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 56 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 57 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 58 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 59 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 60 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 61 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 62 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 63 com.apple.JavaScriptCore 0x004c6c70 KJS::ForNode::execute(KJS::ExecState*) + 560 64 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 65 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 66 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 67 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 68 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 69 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 70 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 71 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 72 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 73 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 74 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 75 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 76 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 77 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 78 com.apple.JavaScriptCore 0x004c8188 KJS::IfNode::execute(KJS::ExecState*) + 344 79 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 80 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 81 com.apple.JavaScriptCore 0x004c6c70 KJS::ForNode::execute(KJS::ExecState*) + 560 82 com.apple.JavaScriptCore 0x004c52e0 KJS::SourceElementsNode::execute(KJS::ExecState*) + 368 83 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 84 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 85 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 86 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 87 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 88 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 89 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 90 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 91 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 92 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 93 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 94 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 95 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 96 com.apple.JavaScriptCore 0x004c8188 KJS::IfNode::execute(KJS::ExecState*) + 344 97 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 98 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 99 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 100 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 101 com.apple.JavaScriptCore 0x004a5388 KJS::FunctionCallResolveNode::evaluate(KJS::ExecState*) + 792 102 com.apple.JavaScriptCore 0x004c8264 KJS::ExprStatementNode::execute(KJS::ExecState*) + 100 103 com.apple.JavaScriptCore 0x004c522c KJS::SourceElementsNode::execute(KJS::ExecState*) + 188 104 com.apple.JavaScriptCore 0x004c8428 KJS::BlockNode::execute(KJS::ExecState*) + 136 105 com.apple.JavaScriptCore 0x004c8e88 KJS::DeclaredFunctionImp::execute(KJS::ExecState*) + 56 106 com.apple.JavaScriptCore 0x004c91f0 KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 608 107 com.apple.JavaScriptCore 0x0049c594 KJS::JSObject::call(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 116 108 com.apple.WebCore 0x0129e0dc KJS::JSAbstractEventListener::handleEvent(WebCore::Event*, bool) + 540 109 com.apple.WebCore 0x010eab5c WebCore::Document::handleWindowEvent(WebCore::Event*, bool) + 156 110 com.apple.WebCore 0x01260d5c WebCore::EventTargetNode::dispatchWindowEvent(WebCore::AtomicString const&, bool, bool) + 252 111 com.apple.WebCore 0x0146b368 WebCore::FrameLoader::stopLoading(bool) + 216 112 com.apple.WebCore 0x0146b6a4 WebCore::FrameLoader::closeURL() + 36 113 com.apple.WebCore 0x0146b710 WebCore::FrameLoader::detachFromParent() + 64 114 com.apple.WebKit 0x0035af68 -[WebView(WebPrivate) _close] + 312 115 com.apple.Safari 0x00047858 0x1000 + 288856 116 com.apple.Safari 0x000476fc 0x1000 + 288508 117 com.apple.Safari 0x00047690 0x1000 + 288400 118 com.apple.AppKit 0x93842c4c -[NSApplication sendAction:to:from:] + 108 119 com.apple.Safari 0x0002956c 0x1000 + 165228 120 com.apple.AppKit 0x93842b80 -[NSControl sendAction:to:] + 96 121 com.apple.AppKit 0x93842a60 -[NSCell _sendActionFrom:] + 156 122 com.apple.AppKit 0x9385ca88 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 1020 123 com.apple.AppKit 0x9385c670 -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 564 124 com.apple.AppKit 0x9385c094 -[NSControl mouseDown:] + 536 125 com.apple.Safari 0x0003dde0 0x1000 + 249312 126 com.apple.AppKit 0x937fd890 -[NSWindow sendEvent:] + 4616 127 com.apple.Safari 0x00021734 0x1000 + 132916 128 com.apple.AppKit 0x937a68d4 -[NSApplication sendEvent:] + 4172 129 com.apple.Safari 0x00021238 0x1000 + 131640 130 com.apple.AppKit 0x9379dd10 -[NSApplication run] + 508 131 com.apple.AppKit 0x9388e87c NSApplicationMain + 452 132 com.apple.Safari 0x0005c77c 0x1000 + 374652 133 com.apple.Safari 0x0005c624 0x1000 + 374308 Thread 1: 0 libSystem.B.dylib 0x9000b4c8 mach_msg_trap + 8 1 libSystem.B.dylib 0x9000b41c mach_msg + 60 2 com.apple.CoreFoundation 0x907deba8 __CFRunLoopRun + 832 3 com.apple.CoreFoundation 0x907de4ac CFRunLoopRunSpecific + 268 4 com.apple.Foundation 0x92c0a6a8 +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 264 5 com.apple.Foundation 0x92be31a0 forkThreadForFunction + 108 6 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 2: 0 libSystem.B.dylib 0x9000b4c8 mach_msg_trap + 8 1 libSystem.B.dylib 0x9000b41c mach_msg + 60 2 com.apple.CoreFoundation 0x907deba8 __CFRunLoopRun + 832 3 com.apple.CoreFoundation 0x907de4ac CFRunLoopRunSpecific + 268 4 com.apple.Foundation 0x92c0b7e8 +[NSURLCache _diskCacheSyncLoop:] + 152 5 com.apple.Foundation 0x92be31a0 forkThreadForFunction + 108 6 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 3: 0 libSystem.B.dylib 0x9002c548 semaphore_wait_signal_trap + 8 1 libSystem.B.dylib 0x9003102c pthread_cond_wait + 480 2 com.apple.Foundation 0x92bea30c -[NSConditionLock lockWhenCondition:] + 68 3 com.apple.Syndication 0x9b51442c -[AsyncDB _run:] + 192 4 com.apple.Foundation 0x92be31a0 forkThreadForFunction + 108 5 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 4: 0 libSystem.B.dylib 0x9001fa0c select + 12 1 com.apple.CoreFoundation 0x907f1434 __CFSocketManager + 472 2 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 5: 0 libSystem.B.dylib 0x9002c548 semaphore_wait_signal_trap + 8 1 libSystem.B.dylib 0x9003102c pthread_cond_wait + 480 2 com.apple.Foundation 0x92bea30c -[NSConditionLock lockWhenCondition:] + 68 3 com.apple.AppKit 0x9383e708 -[NSUIHeartBeat _heartBeatThread:] + 324 4 com.apple.Foundation 0x92be31a0 forkThreadForFunction + 108 5 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 6: 0 libSystem.B.dylib 0x9000b4c8 mach_msg_trap + 8 1 libSystem.B.dylib 0x9000b41c mach_msg + 60 2 ...romedia.Flash Player.plugin 0x080d6688 native_ShockwaveFlash_TCallFrame + 1368296 3 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 7: 0 libSystem.B.dylib 0x90055468 semaphore_timedwait_signal_trap + 8 1 libSystem.B.dylib 0x90071be8 pthread_cond_timedwait_relative_np + 556 2 ...ple.CoreServices.CarbonCore 0x90bf748c TSWaitOnSemaphoreCommon + 176 3 ...ickTimeComponents.component 0x998c4224 ReadSchedulerThreadEntryPoint + 5300 4 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 8: 0 libSystem.B.dylib 0x9000b4c8 mach_msg_trap + 8 1 libSystem.B.dylib 0x9000b41c mach_msg + 60 2 com.apple.CoreFoundation 0x907deba8 __CFRunLoopRun + 832 3 com.apple.CoreFoundation 0x907de4ac CFRunLoopRunSpecific + 268 4 com.apple.CoreFoundation 0x907ed90c CFRunLoopRun + 52 5 com.apple.QuickTime 0x948a2040 QTSNetworkThread_RunThread + 128 6 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 9: 0 libSystem.B.dylib 0x9000b4c8 mach_msg_trap + 8 1 libSystem.B.dylib 0x9000b41c mach_msg + 60 2 com.apple.CoreFoundation 0x907deba8 __CFRunLoopRun + 832 3 com.apple.CoreFoundation 0x907de4ac CFRunLoopRunSpecific + 268 4 com.apple.audio.CoreAudio 0x9145763c HALRunLoop::OwnThread(void*) + 264 5 com.apple.audio.CoreAudio 0x914573dc CAPThread::Entry(CAPThread*) + 96 6 libSystem.B.dylib 0x9002be88 _pthread_body + 96 Thread 0 crashed with PPC Thread State 64: srr0: 0x000000000044e3bc srr1: 0x000000000000f030 vrsave: 0x00000000fff00000 cr: 0x44044242 xer: 0x0000000000000004 lr: 0x000000000044cf54 ctr: 0x0000000000442c00 r0: 0x000000000044cf54 r1: 0x00000000bfffaad0 r2: 0x0000000000441400 r3: 0x00000000bfffab80 r4: 0x0000000000000024 r5: 0x00000000bfffabbc r6: 0x0000000009086c40 r7: 0x0000000000000545 r8: 0x00000000114f0000 r9: 0x0000000000505d80 r10: 0x0000000000441a3c r11: 0x00000000114e5684 r12: 0x0000000000442c00 r13: 0x00000000a37cc688 r14: 0x0000000000000100 r15: 0x0000000000000000 r16: 0x000000000050508c r17: 0x000000000051508c r18: 0x000000000051508c r19: 0x000000000051508c r20: 0x000000000051508c r21: 0x00000000bfffb0f0 r22: 0x00000000bfffb530 r23: 0x0000000000506a58 r24: 0x00000000bfffaf9c r25: 0x00000000bfffaef0 r26: 0x0000000000505180 r27: 0x00000000bfffab80 r28: 0x00000000087fbae0 r29: 0x00000000bfffabbc r30: 0x0000000000000024 r31: 0x000000000129bf50 Binary Images Description: 0x1000 - 0xdcfff com.apple.Safari 2.0.4 (419.3) /Applications/Safari.app/Contents/MacOS/Safari 0x109000 - 0x10afff WebKitNightlyEnabler.dylib /Applications/WebKit.app/Contents/Resources/WebKitNightlyEnabler.dylib 0x305000 - 0x3b9fff com.apple.WebKit 522+ /Applications/WebKit.app/Contents/Resources/WebKit.framework/Versions/A/WebKit 0x43a000 - 0x4eefff com.apple.JavaScriptCore 522+ /Applications/WebKit.app/Contents/Resources/JavaScriptCore.framework/Versions/A/JavaScriptCore 0x1008000 - 0x1564fff com.apple.WebCore 522+ /Applications/WebKit.app/Contents/Resources/WebCore.framework/Versions/A/WebCore 0x19a0000 - 0x19a7fff com.unsanity.smartcrashreports Smart Crash Reports version 1.0.3 (1.0.3b1) /Users/mly/Library/InputManagers/Smart Crash Reports/Smart Crash Reports.bundle/Contents/MacOS/Smart Crash Reports 0x1c09000 - 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Attachments
proposed fix (1.43 KB, patch)
2007-07-03 06:47 PDT, Maxime BRITTO 		mjs: review-
DetailsFormatted DiffDiff
mitz test case & mbritto fix (3.28 KB, patch)
2007-07-06 06:11 PDT, Maxime BRITTO 		darin: review+
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2007-06-22 06:05:42 PDT
I could reproduce this on first attempt with the same nightly, and then with the latest one, r23682. 1. Opened two tabs with www.google.com, and one with maps.google.com. 2. Searched for San Francisco in the map. 3. Clicked the Street View button. 3. When promised, zoomed in and opened street view. 4. Clicked around a little. 5. Closed the tab, got the same crash.
Maxime BRITTO
Comment 2 2007-07-03 06:47:41 PDT
Created attachment 15367 [details] proposed fix Comments about the fix : This fix is preventing the crash without any visible unexpected effects (on GoogleMaps and on the Layout Tests). The check for the instance on the constructor is not essential but I think it may be useful to prevent future bugs which can look like this one. If the reviewer don't like it he can remove it. Comments about the test : There is no test attached to this patch because we need to use tabs to reproduce it and the DumpRenderTree doesn't handle them. If there is another way to reproduce it I don't know it.
Maciej Stachowiak
Comment 3 2007-07-05 19:20:19 PDT
Comment on attachment 15367 [details] proposed fix Thanks for the patch. any chance you could add a manual test, that has the instructions on what tabs to open? r- to consider making a manual test but I'd appreove this without if it's too awkward to make one.
mitz
Comment 4 2007-07-06 00:42:51 PDT
While the patch fixes the crash, I think it would be better to figure out a way not to stop the plugin before dispatching the unload event, as the unload handler may want to pull state out of the plugin before going away (or tell the plugin to save state). It is inconsistent that it's allowed to do so when unload results from closing a window but not when it results from closing a background tab. Consider filing a follow-up bug about the root cause after the crasher is fixed.
Maxime BRITTO
Comment 5 2007-07-06 06:11:55 PDT
Created attachment 15418 [details] mitz test case & mbritto fix As we said on the IRC, I joined mitz test case to my fix in this patch. With this patch we avoid the crash but we need to keep on working to come with a more efficient solution regarding to mitz's comment.
Darin Adler
Comment 6 2007-07-08 05:03:19 PDT
(In reply to comment #5) > As we said on the IRC, I joined mitz test case to my fix in this patch. > With this patch we avoid the crash but we need to keep on working to come with > a more efficient solution regarding to mitz's comment. Mitz's comment is not asking for a "more efficient" fix. There's no problem here with efficiency. The problem is one of incorrect behavior. The unload handler will get incorrect results when it interacts the plug-in's objects when a background tab is closed.
Darin Adler
Comment 7 2007-07-08 05:04:34 PDT
Comment on attachment 15418 [details] mitz test case & mbritto fix The comment "more efficient" is misleading. There's no efficiency problem here, but rather inconsistent behavior. The code should put instance->rootObject() into a local variable -- it's not free and calling it twice is slower than calling it once. But r=me anyway.
mitz
Comment 8 2007-07-09 00:47:03 PDT
Looks like <http://trac.webkit.org/projects/webkit/changeset/24106> fixed this independently as <rdar://problem/5295734>.
Maciej Stachowiak
Comment 9 2007-07-09 00:57:50 PDT
I fixed this in a slightly different way; I avoid creating a RuntimeObjectImp at all if the root object is destroyed, as there is no point making one for a destroyed plugin.
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