Bug 25614 – ASSERTION Failure in JSC::binaryChop

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

[Mihnea Ovidenie]

Hi,

After building the debug version of WebKit revision 43342 and run it with run-safari --debug i encounter the following assertion while visiting the site www.bobthebuilder.com.

ASSERTION FAILED: key == valueAtPosition(&array[0])
(/Volumes/data/Users/mihnea/WebKit/JavaScriptCore/bytecode/CodeBlock.h:225 ArrayType* JSC::binaryChop(ArrayType*, size_t, KeyType) [with ArrayType = JSC::CallReturnOffsetToBytecodeIndex, KeyType = unsigned int, KeyType (* valueAtPosition)(ArrayType*) = JSC::getCallReturnOffset])

Steps:
1. go to http://www.bobthebuilder.com
2. choose US
3. choose Games

I thought it might be interesting.
Cheers,
Mihnea

[Mihnea Ovidenie]

Here's the crash log:

Process:         Safari [66771]
Path:            /Applications/Safari.app/Contents/MacOS/Safari
Identifier:      com.apple.Safari
Version:         4 Public Beta (5528.16)
Build Info:      WebBrowser-55281600~1
Code Type:       X86 (Native)
Parent Process:  perl [66762]

Date/Time:       2009-05-06 14:39:12.253 +0300
OS Version:      Mac OS X 10.5.6 (9G55)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000bbadbeef
Crashed Thread:  0

Thread 0 Crashed:
0   com.apple.JavaScriptCore      	0x006a38e6 JSC::CallReturnOffsetToBytecodeIndex* JSC::binaryChop<JSC::CallReturnOffsetToBytecodeIndex, unsigned int, &(JSC::getCallReturnOffset(JSC::CallReturnOffsetToBytecodeIndex*))>(JSC::CallReturnOffsetToBytecodeIndex*, unsigned long, unsigned int) + 330 (CodeBlock.h:225)
1   com.apple.JavaScriptCore      	0x006a397b JSC::CodeBlock::getBytecodeIndex(JSC::ExecState*, void*) + 121 (CodeBlock.h:315)
2   com.apple.JavaScriptCore      	0x006c355d JSC::JITStubs::cti_vm_throw(void*, ...) + 107 (JITStubs.cpp:2425)
3   com.apple.JavaScriptCore      	0x006c2eae jscGeneratedNativeCode + 0 (JITStubs.cpp:390)
4   com.apple.JavaScriptCore      	0x006a81c0 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*, JSC::JSValue*) + 58 (JITCode.h:76)
5   com.apple.JavaScriptCore      	0x00691e7b JSC::Interpreter::execute(JSC::ProgramNode*, JSC::ExecState*, JSC::ScopeChainNode*, JSC::JSObject*, JSC::JSValue*) + 801 (Interpreter.cpp:627)
6   com.apple.JavaScriptCore      	0x00620d51 JSC::evaluate(JSC::ExecState*, JSC::ScopeChain&, JSC::SourceCode const&, JSC::JSValue) + 475 (Completion.cpp:67)
7   com.apple.WebCore             	0x03a8e8c0 _NPN_Evaluate + 366 (NP_jsobject.cpp:206)
8   ...romedia.Flash Player.plugin	0x21ffe3ce 0x21d1a000 + 3032014
9   ...romedia.Flash Player.plugin	0x2209f716 Flash_EnforceLocalSecurity + 638838
10  ...romedia.Flash Player.plugin	0x21d8f87c 0x21d1a000 + 481404
11  ...romedia.Flash Player.plugin	0x21f660ba 0x21d1a000 + 2408634
12  ???                           	0x265595e2 0 + 643143138
13  ???                           	0x2348449c 0 + 591938716
14  ...romedia.Flash Player.plugin	0x2222c77a Flash_EnforceLocalSecurity + 2265050
15  ...romedia.Flash Player.plugin	0x21f5e34a 0x21d1a000 + 2376522
16  ...romedia.Flash Player.plugin	0x21f5f835 0x21d1a000 + 2381877
17  ...romedia.Flash Player.plugin	0x21f617e7 0x21d1a000 + 2389991
18  ...romedia.Flash Player.plugin	0x21eb7e7a 0x21d1a000 + 1695354
19  ...romedia.Flash Player.plugin	0x21eda1a7 0x21d1a000 + 1835431
20  ...romedia.Flash Player.plugin	0x220aa7e8 Flash_EnforceLocalSecurity + 684104
21  ...romedia.Flash Player.plugin	0x22003a02 Flash_EnforceLocalSecurity + 610
22  com.apple.WebKit              	0x00349fb1 -[WebNetscapePluginDocumentView sendEvent:isDrawRect:] + 857 (WebNetscapePluginView.mm:673)
23  com.apple.WebKit              	0x003417cb WebNetscapePluginEventHandlerCarbon::sendEvent(EventRecord*) + 131 (WebNetscapePluginEventHandlerCarbon.mm:418)
24  com.apple.WebKit              	0x003422a1 WebNetscapePluginEventHandlerCarbon::mouseUp(NSEvent*) + 55 (WebNetscapePluginEventHandlerCarbon.mm:162)
25  com.apple.WebKit              	0x00345372 -[WebNetscapePluginDocumentView mouseUp:] + 54 (WebNetscapePluginView.mm:759)
26  com.apple.WebCore             	0x0373d3ec WebCore::EventHandler::eventLoopHandleMouseUp(WebCore::MouseEventWithHitTestResults const&) + 350 (EventHandlerMac.mm:386)
27  com.apple.WebCore             	0x037339fc WebCore::EventHandler::handleMouseUp(WebCore::MouseEventWithHitTestResults const&) + 24 (EventHandler.cpp:527)
28  com.apple.WebCore             	0x03733a6c WebCore::EventHandler::handleMouseReleaseEvent(WebCore::MouseEventWithHitTestResults const&) + 62 (EventHandler.cpp:543)
29  com.apple.WebCore             	0x03735d09 WebCore::EventHandler::handleMouseReleaseEvent(WebCore::PlatformMouseEvent const&) + 921 (EventHandler.cpp:1388)
30  com.apple.WebCore             	0x0373c916 WebCore::EventHandler::mouseUp(NSEvent*) + 430 (EventHandlerMac.mm:580)
31  com.apple.WebKit              	0x0031572a -[WebHTMLView mouseUp:] + 302 (WebHTMLView.mm:3524)
32  com.apple.AppKit              	0x96e52241 -[NSWindow sendEvent:] + 5539
33  com.apple.Safari              	0x00039663 0x1000 + 231011
34  com.apple.AppKit              	0x96e1ed49 -[NSApplication sendEvent:] + 2941
35  com.apple.Safari              	0x000391aa 0x1000 + 229802
36  com.apple.AppKit              	0x96d7c69f -[NSApplication run] + 847
37  com.apple.AppKit              	0x96d498a4 NSApplicationMain + 574
38  com.apple.Safari              	0x00003306 0x1000 + 8966

Thread 1:
0   libSystem.B.dylib             	0x931ac3ae __semwait_signal + 10
1   libSystem.B.dylib             	0x931d6d0d pthread_cond_wait$UNIX2003 + 73
2   com.apple.JavaScriptCore      	0x006f7bd5 WTF::ThreadCondition::wait(WTF::Mutex&) + 39 (ThreadingPthreads.cpp:282)
3   com.apple.WebCore             	0x0384a449 WebCore::IconDatabase::syncThreadMainLoop() + 677 (IconDatabase.cpp:1412)
4   com.apple.WebCore             	0x0384b3e8 WebCore::IconDatabase::iconDatabaseSyncThread() + 1222 (IconDatabase.cpp:1036)
5   com.apple.WebCore             	0x0384b417 WebCore::IconDatabase::iconDatabaseSyncThreadStart(void*) + 23 (IconDatabase.cpp:940)
6   com.apple.JavaScriptCore      	0x006f7a50 __ZN3WTFL16threadEntryPointEPv + 126 (Threading.cpp:65)
7   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
8   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 2:
0   libSystem.B.dylib             	0x931a51c6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x931ac9bc mach_msg + 72
2   com.apple.CoreFoundation      	0x934a50ae CFRunLoopRunSpecific + 1790
3   com.apple.CoreFoundation      	0x934a5cd8 CFRunLoopRunInMode + 88
4   com.apple.CFNetwork           	0x956d5ebe CFURLCacheWorkerThread(void*) + 396
5   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
6   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 3:
0   libSystem.B.dylib             	0x931ac3ae __semwait_signal + 10
1   libSystem.B.dylib             	0x931d6d0d pthread_cond_wait$UNIX2003 + 73
2   com.apple.JavaScriptCore      	0x006f7bd5 WTF::ThreadCondition::wait(WTF::Mutex&) + 39 (ThreadingPthreads.cpp:282)
3   com.apple.JavaScriptCore      	0x006f7c83 WTF::ThreadCondition::timedWait(WTF::Mutex&, double) + 99 (ThreadingPthreads.cpp:293)
4   com.apple.WebCore             	0x03a67311 WTF::MessageQueueWaitResult WTF::MessageQueue<WTF::RefPtr<WebCore::LocalStorageTask> >::waitForMessageFilteredWithTimeout<bool ()(WTF::RefPtr<WebCore::LocalStorageTask>&)>(WTF::RefPtr<WebCore::LocalStorageTask>&, bool (&)(WTF::RefPtr<WebCore::LocalStorageTask>&), double) + 153 (MessageQueue.h:109)
5   com.apple.WebCore             	0x03a6761c WTF::MessageQueue<WTF::RefPtr<WebCore::LocalStorageTask> >::waitForMessage(WTF::RefPtr<WebCore::LocalStorageTask>&) + 52 (MessageQueue.h:95)
6   com.apple.WebCore             	0x03a65c62 WebCore::LocalStorageThread::localStorageThread() + 70 (LocalStorageThread.cpp:72)
7   com.apple.WebCore             	0x03a65ce3 WebCore::LocalStorageThread::localStorageThreadStart(void*) + 17 (LocalStorageThread.cpp:61)
8   com.apple.JavaScriptCore      	0x006f7a50 __ZN3WTFL16threadEntryPointEPv + 126 (Threading.cpp:65)
9   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
10  libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 4:
0   libSystem.B.dylib             	0x931a51c6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x931ac9bc mach_msg + 72
2   com.apple.CoreFoundation      	0x934a50ae CFRunLoopRunSpecific + 1790
3   com.apple.CoreFoundation      	0x934a5cd8 CFRunLoopRunInMode + 88
4   com.apple.Safari              	0x00188f9d 0x1000 + 1605533
5   com.apple.Safari              	0x001866f3 0x1000 + 1595123
6   com.apple.Safari              	0x001867a1 0x1000 + 1595297
7   com.apple.JavaScriptCore      	0x006f7a50 __ZN3WTFL16threadEntryPointEPv + 126 (Threading.cpp:65)
8   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
9   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 5:
0   libSystem.B.dylib             	0x931ac3ae __semwait_signal + 10
1   libSystem.B.dylib             	0x931d6d0d pthread_cond_wait$UNIX2003 + 73
2   com.apple.JavaScriptCore      	0x006f7bd5 WTF::ThreadCondition::wait(WTF::Mutex&) + 39 (ThreadingPthreads.cpp:282)
3   com.apple.Safari              	0x000f1cdb 0x1000 + 986331
4   com.apple.Safari              	0x000f2321 0x1000 + 987937
5   com.apple.JavaScriptCore      	0x006f7a50 __ZN3WTFL16threadEntryPointEPv + 126 (Threading.cpp:65)
6   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
7   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 6:
0   libSystem.B.dylib             	0x931ac3ae __semwait_signal + 10
1   libSystem.B.dylib             	0x931d6d0d pthread_cond_wait$UNIX2003 + 73
2   libGLProgrammability.dylib    	0x91c7eb32 glvmDoWork + 162
3   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
4   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 7:
0   libSystem.B.dylib             	0x931ac3ae __semwait_signal + 10
1   libSystem.B.dylib             	0x931d6d0d pthread_cond_wait$UNIX2003 + 73
2   com.apple.ColorSync           	0x90e3f45c pthreadSemaphoreWait(t_pthreadSemaphore*) + 42
3   com.apple.ColorSync           	0x90e51d8e CMMConvTask(void*) + 54
4   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
5   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 8:
0   libSystem.B.dylib             	0x931d5906 kevent + 10
1   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
2   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 9:
0   libSystem.B.dylib             	0x931a51c6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x931ac9bc mach_msg + 72
2   com.apple.CoreFoundation      	0x934a50ae CFRunLoopRunSpecific + 1790
3   com.apple.CoreFoundation      	0x934a5cd8 CFRunLoopRunInMode + 88
4   com.apple.Foundation          	0x92f94d40 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 320
5   com.apple.Foundation          	0x92f317ed -[NSThread main] + 45
6   com.apple.Foundation          	0x92f31394 __NSThread__main__ + 308
7   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
8   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 10:
0   libSystem.B.dylib             	0x931f46f2 select$DARWIN_EXTSN + 10
1   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
2   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 11:
0   libSystem.B.dylib             	0x931a51c6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x931ac9bc mach_msg + 72
2   ...romedia.Flash Player.plugin	0x2221d774 Flash_EnforceLocalSecurity + 2203604
3   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
4   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 12:
0   libSystem.B.dylib             	0x931a520e semaphore_wait_signal_trap + 10
1   libSystem.B.dylib             	0x931d7206 _pthread_cond_wait + 1267
2   libSystem.B.dylib             	0x9321c539 pthread_cond_wait + 48
3   ...romedia.Flash Player.plugin	0x21ff514f 0x21d1a000 + 2994511
4   ...romedia.Flash Player.plugin	0x2200e91f Flash_EnforceLocalSecurity + 45439
5   ...romedia.Flash Player.plugin	0x21ff55ff 0x21d1a000 + 2995711
6   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
7   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 13:
0   libSystem.B.dylib             	0x931a520e semaphore_wait_signal_trap + 10
1   libSystem.B.dylib             	0x931d7206 _pthread_cond_wait + 1267
2   libSystem.B.dylib             	0x9321c539 pthread_cond_wait + 48
3   ...romedia.Flash Player.plugin	0x21ff514f 0x21d1a000 + 2994511
4   ...romedia.Flash Player.plugin	0x2200e91f Flash_EnforceLocalSecurity + 45439
5   ...romedia.Flash Player.plugin	0x21ff55ff 0x21d1a000 + 2995711
6   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
7   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 14:
0   libSystem.B.dylib             	0x931a51c6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x931ac9bc mach_msg + 72
2   com.apple.CoreFoundation      	0x934a50ae CFRunLoopRunSpecific + 1790
3   com.apple.CoreFoundation      	0x934a5cd8 CFRunLoopRunInMode + 88
4   com.apple.audio.CoreAudio     	0x928525dc HALRunLoop::OwnThread(void*) + 160
5   com.apple.audio.CoreAudio     	0x92852464 CAPThread::Entry(CAPThread*) + 96
6   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
7   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 15:
0   libSystem.B.dylib             	0x931a5226 semaphore_timedwait_signal_trap + 10
1   libSystem.B.dylib             	0x931d71ef _pthread_cond_wait + 1244
2   libSystem.B.dylib             	0x931d8a73 pthread_cond_timedwait_relative_np + 47
3   com.apple.audio.CoreAudio     	0x92861bc3 CAGuard::WaitFor(unsigned long long) + 213
4   com.apple.audio.CoreAudio     	0x9286377e CAGuard::WaitUntil(unsigned long long) + 70
5   com.apple.audio.CoreAudio     	0x92861f23 HP_IOThread::WorkLoop() + 759
6   com.apple.audio.CoreAudio     	0x92861c27 HP_IOThread::ThreadEntry(HP_IOThread*) + 17
7   com.apple.audio.CoreAudio     	0x92852464 CAPThread::Entry(CAPThread*) + 96
8   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
9   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 16:
0   libSystem.B.dylib             	0x931a5226 semaphore_timedwait_signal_trap + 10
1   libSystem.B.dylib             	0x931d71ef _pthread_cond_wait + 1244
2   libSystem.B.dylib             	0x931d8a73 pthread_cond_timedwait_relative_np + 47
3   ...ple.CoreServices.CarbonCore	0x96a35dd2 TSWaitOnConditionTimedRelative + 246
4   ...ple.CoreServices.CarbonCore	0x96a35bb2 TSWaitOnSemaphoreCommon + 422
5   ...ple.CoreServices.CarbonCore	0x96a669c8 TimerThread + 74
6   libSystem.B.dylib             	0x931d6095 _pthread_start + 321
7   libSystem.B.dylib             	0x931d5f52 thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0xbbadbeef  ebx: 0x006a37a8  ecx: 0x00000000  edx: 0x00000000
  edi: 0x00000c63  esi: 0x0000002c  ebp: 0xbfffe518  esp: 0xbfffe4e0
   ss: 0x0000001f  efl: 0x00010286  eip: 0x006a38e6   cs: 0x00000017
   ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
  cr2: 0xbbadbeef

Binary Images:
    0x1000 -   0x266fe2  com.apple.Safari 4 Public Beta (5528.16) <88923208ea437fc8b5a5e5cd4f1924d5> /Applications/Safari.app/Contents/MacOS/Safari
  0x2c1000 -   0x3f1ff7  com.apple.WebKit 530+ (530.9+) <6a6092ec5ae36c26d13f22acb82a5e9a> /Volumes/data/Users/mihnea/WebKit/WebKitBuild/Debug/WebKit.framework/Versions/A/WebKit
  0x5a7000 -   0x5b6ffc  SyndicationUI ??? (???) <408d1e186315965e65a4562de17589be> /System/Library/PrivateFrameworks/SyndicationUI.framework/Versions/A/SyndicationUI
  0x5c6000 -   0x780fff  com.apple.JavaScriptCore 530+ (530.9+) <7236879888dcc738a3ade931b33fbade> /Volumes/data/Users/mihnea/WebKit/WebKitBuild/Debug/JavaScriptCore.framework/Versions/A/JavaScriptCore
  0xf9a000 -  0x116cfe7  com.apple.RawCamera.bundle 2.0.10 (2.0.10) <fea6d22f985aec2f376d937291b54ecc> /System/Library/CoreServices/RawCamera.bundle/Contents/MacOS/RawCamera
 0x3474000 -  0x47dafef  com.apple.WebCore 530+ (530.9+) <f53bd17012de26ba3e1d1013e8ba1b37> /Volumes/data/Users/mihnea/WebKit/WebKitBuild/Debug/WebCore.framework/Versions/A/WebCore
 0x6feb000 -  0x6febffe  com.apple.JavaPluginCocoa 12.2.0 (12.2.0) <b08d1285182ffcbaedd747d17fdaeefd> /Library/Internet Plug-Ins/JavaPluginCocoa.bundle/Contents/MacOS/JavaPluginCocoa
0x1a35a000 - 0x1a35fff3  libCGXCoreImage.A.dylib ??? (???) <375e0cdb64b043378dbf637992bbfeb0> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGXCoreImage.A.dylib
0x1a990000 - 0x1a996ffd  com.apple.JavaVM 12.2.2 (12.2.2) <9ad39149cc7ecc91da3e93df7f61d315> /System/Library/Frameworks/JavaVM.framework/Versions/A/JavaVM
0x1b1b8000 - 0x1b1d7fed  com.apple.audio.CoreAudioKit 1.5 (1.5) <82f2e52c502db7f3b32349a54209a0fe> /System/Library/Frameworks/CoreAudioKit.framework/Versions/A/CoreAudioKit
0x1b21d000 - 0x1b3a0fe3  GLEngine ??? (???) <bfbd7ce69ea896a6b38d6232b01cdeda> /System/Library/Frameworks/OpenGL.framework/Resources/GLEngine.bundle/GLEngine
0x1b3ce000 - 0x1b736fe8  com.apple.GeForce8xxxGLDriver 1.5.36 (5.3.6) <e5d9fd7873a13fc3acc278b534337527> /System/Library/Extensions/GeForce8xxxGLDriver.bundle/Contents/MacOS/GeForce8xxxGLDriver
0x1ba71000 - 0x1ba8dff7  GLRendererFloat ??? (???) <dcdc2e0de7fb9a52d99e529c3688f26d> /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLRendererFloat.bundle/GLRendererFloat
0x1cc29000 - 0x1cc2cfff  com.apple.audio.AudioIPCPlugIn 1.0.5 (1.0.5) <e7424df9b53076d04045fb2e0132b2d0> /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn
0x1cc79000 - 0x1cc7aff3  ATSHI.dylib ??? (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/ATSHI.dylib
0x21523000 - 0x21531feb  libSimplifiedChineseConverter.dylib ??? (???) <548d5a699dbe2bb8fcc8275321fdc0d4> /System/Library/CoreServices/Encodings/libSimplifiedChineseConverter.dylib
0x21536000 - 0x21548fff  libTraditionalChineseConverter.dylib ??? (???) <89ec94121ef50601dc538548caae57fc> /System/Library/CoreServices/Encodings/libTraditionalChineseConverter.dylib
0x21561000 - 0x21566fff  com.apple.audio.AppleHDAHALPlugIn 1.6.2 (1.6.2a37) /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn
0x21d1a000 - 0x2233dfef +com.macromedia.Flash Player.plugin 10.0.22.87 (1.0.4f872) <860692a215f054b7b9474b410abeb530> /Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player
0x70000000 - 0x700e6ff2  com.apple.audio.units.Components 1.5.2 (1.5.2) /System/Library/Components/CoreAudio.component/Contents/MacOS/CoreAudio
0x8fe00000 - 0x8fe2db43  dyld 97.1 (???) <100d362e03410f181a34e04e94189ae5> /usr/lib/dyld
0x90003000 - 0x9030bfff  com.apple.HIToolbox 1.5.4 (???) <3747086ba21ee419708a5cab946c8ba6> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x9030c000 - 0x90310fff  libmathCommon.A.dylib ??? (???) /usr/lib/system/libmathCommon.A.dylib
0x90311000 - 0x90326ffb  com.apple.ImageCapture 5.0.1 (5.0.1) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
0x90bb2000 - 0x90bc0ffd  libz.1.dylib ??? (???) <5ddd8539ae2ebfd8e7cc1c57525385c7> /usr/lib/libz.1.dylib
0x90bc1000 - 0x90bc1ffe  com.apple.quartzframework 1.5 (1.5) <4b8f505e32e4f2d67967a276401f9aaf> /System/Library/Frameworks/Quartz.framework/Versions/A/Quartz
0x90bc2000 - 0x90c72fff  edu.mit.Kerberos 6.0.12 (6.0.12) <685cc018c133668d0d3ac6a1cb63cff9> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
0x90c73000 - 0x90c9bff7  com.apple.shortcut 1 (1.0) <057783867138902b52bc0941fedb74d1> /System/Library/PrivateFrameworks/Shortcut.framework/Versions/A/Shortcut
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0x910f0000 - 0x91500fef  libBLAS.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
0x91506000 - 0x918c4fea  libLAPACK.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
0x918c5000 - 0x918cafff  com.apple.backup.framework 1.0 (1.0) /System/Library/PrivateFrameworks/Backup.framework/Versions/A/Backup
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0x921a1000 - 0x921acfe7  libCSync.A.dylib ??? (???) <e6aceed359bd228f42bc1246af5919c9> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x92319000 - 0x926b6fef  com.apple.QuartzCore 1.5.7 (1.5.7) <2fed2dd7565c84a0f0c608d41d4d172c> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
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0x92817000 - 0x92834ff7  com.apple.QuickLookFramework 1.3.1 (170.9) /System/Library/Frameworks/QuickLook.framework/Versions/A/QuickLook
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0x92946000 - 0x92987fe7  libRIP.A.dylib ??? (???) <5d0b5af7992e14de017f9a9c7cb05960> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
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0x933ba000 - 0x933f9fff  com.apple.CoreMediaIOServicesPrivate 15.0 (15.0) /System/Library/PrivateFrameworks/CoreMediaIOServicesPrivate.framework/Versions/A/CoreMediaIOServicesPrivate
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0x945df000 - 0x945feffa  libJPEG.dylib ??? (???) <e7eb56555109e23144924cd64aa8daec> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
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0x95de9000 - 0x95eceff3  com.apple.CoreData 100.1 (186) <8e28162ef2288692615b52acc01f8b54> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
0x95ecf000 - 0x95ed7fff  com.apple.DiskArbitration 2.2.1 (2.2.1) <75b0c8d8940a8a27816961dddcac8e0f> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
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0x9600c000 - 0x96037fe7  libauto.dylib ??? (???) <42d8422dc23a18071869fdf7b5d8fab5> /usr/lib/libauto.dylib
0x9607d000 - 0x96107fe3  com.apple.DesktopServices 1.4.7 (1.4.7) <d16642ba22c32f67be793ebfbe67ca3a> /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv
0x96108000 - 0x9612cfeb  libssl.0.9.7.dylib ??? (???) <c7359b7ab32b5f8574520746e10a41cc> /usr/lib/libssl.0.9.7.dylib
0x9612d000 - 0x9612dff8  com.apple.Cocoa 6.5 (???) <e064f94d969ce25cb7de3cfb980c3249> /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
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0x96179000 - 0x9622bffb  libcrypto.0.9.7.dylib ??? (???) <69bc2457aa23f12fa7d052601d48fa29> /usr/lib/libcrypto.0.9.7.dylib
0x96275000 - 0x96275ffc  com.apple.audio.units.AudioUnit 1.5 (1.5) /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
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0x96741000 - 0x9674dffe  libGL.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x9674e000 - 0x967b4ffb  com.apple.ISSupport 1.7 (38.2) /System/Library/PrivateFrameworks/ISSupport.framework/Versions/A/ISSupport
0x967b5000 - 0x967bcffe  libbsm.dylib ??? (???) <d25c63378a5029648ffd4b4669be31bf> /usr/lib/libbsm.dylib
0x967bd000 - 0x967bffff  com.apple.CrashReporterSupport 10.5.5 (159) <4ca9b6643fcbafd76424a46d162363eb> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/Versions/A/CrashReporterSupport
0x96993000 - 0x9699dfeb  com.apple.audio.SoundManager 3.9.2 (3.9.2) <0f2ba6e891d3761212cf5a5e6134d683> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.framework/Versions/A/CarbonSound
0x969b2000 - 0x96a0bff7  libGLU.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x96a0c000 - 0x96ce6ff3  com.apple.CoreServices.CarbonCore 786.11 (786.11) <f06fe5d92d56ac5aa52d1ba182745924> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
0x96ce7000 - 0x96d25ff7  libGLImage.dylib ??? (???) <1123b8a48bcbe9cc7aa8dd8e1a214a66> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x96d26000 - 0x96d35fff  libsasl2.2.dylib ??? (???) <bb7971ca2f609c070f87786a93d1041e> /usr/lib/libsasl2.2.dylib
0x96d43000 - 0x97541fef  com.apple.AppKit 6.5.6 (949.43) <a3a300499bbe4f1dfebf71d752d01916> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x97542000 - 0x9757cfe7  com.apple.coreui 1.2 (62) /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
0xba900000 - 0xba916fff  libJapaneseConverter.dylib ??? (???) <7b0248c392848338f5d6ed093313eeef> /System/Library/CoreServices/Encodings/libJapaneseConverter.dylib
0xbab00000 - 0xbab21fe2  libKoreanConverter.dylib ??? (???) <51586b8d9ef39123fbe6918f12d8285f> /System/Library/CoreServices/Encodings/libKoreanConverter.dylib
0xfffe8000 - 0xfffebfff  libobjc.A.dylib ??? (???) /usr/lib/libobjc.A.dylib
0xffff0000 - 0xffff1780  libSystem.B.dylib ??? (???) /usr/lib/libSystem.B.dylib

[Geoffrey Garen]

<rdar://problem/6869621>

[Adam Roben (:aroben)]

I can't reproduce using r43402

[Mihnea Ovidenie]

(In reply to comment #3)
> I can't reproduce using r43402
> 

Hi,
I hit the assertions again with *debug* build of 43457. It does not seems to have a problem with release build. Maybe it's because i run the WebKit Debug version with run-safari --debug?

Regards,
Mihnea

[Geoffrey Garen]

I'm able to reproduce this assertion failure in a debug build.

[Michael Saboff]

This is due to improper reporting of stack overflow exception.  we use the wrong JIT PC value to determine the byte code offset.  Although this only is apparent with debug build due to an assertion, it happens silently on release builds.

A patch is in the works.

[Michael Saboff]

Created attachment 78541 [details]
Patch to use Proper PC value for Stack Overflow Exception Processing

Changed JITStubs::cti_register_file_check() to use the current stack's return PC to find the bytecode for handling the exception in the prior frame.  Also added the appropriate arrity check routine call to the JIT to bytecode vector (m_callReturnIndexVector) in the CodeBlock.

[Geoffrey Garen]

Comment on attachment 78541 [details]
Patch to use Proper PC value for Stack Overflow Exception Processing

View in context: https://bugs.webkit.org/attachment.cgi?id=78541&action=review

r=me

It's fine to make the small change I mentioned and check in without an additional round of review.

> Source/JavaScriptCore/jit/JIT.cpp:509
> +        JITStubCall(this, m_codeBlock->m_isConstructor ? cti_op_construct_arityCheck : cti_op_call_arityCheck).call();
> +
>          move(regT0, callFrameRegister);

A shorter way to do this is to pass callFrameRegister as the argument to JITStubCall::call(), and remove the explicit call to move(). The argument to JITStubCall::call() specifies where you'd like the return value to be stored.

[Michael Saboff]

Committed r75510: <http://trac.webkit.org/changeset/75510>