Bug 16129 – REGRESSION (r27761-r27811): malloc error while visiting http://mysit.es (crashes release build)

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

[Dieter Komendera]

Webkit Nightly (currently r28007) crashes each time when visiting the URL http://mysit.es/
Works well in Firefox 2.0

I'll attach a crash report.

[Dieter Komendera]

Process:         Safari [3748]
Path:            /Applications/WebKit.app/Contents/MacOS/WebKit
Identifier:      org.webkit.nightly.WebKit
Version:         r28007 (28007)
Code Type:       X86 (Native)
Parent Process:  launchd [136]

Date/Time:       2007-11-25 16:08:02.085 +0100
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000e8e2ffe8
Crashed Thread:  0

Thread 0 Crashed:
0   com.apple.JavaScriptCore      	0x002fbe47 WTF::fastMalloc(unsigned long) + 359
1   com.apple.JavaScriptCore      	0x0036a5d5 kjsyyparse() + 9877
2   com.apple.JavaScriptCore      	0x0036da27 KJS::Parser::parse(KJS::UString const&, int, KJS::UChar const*, unsigned int, int*, int*, KJS::UString*) + 327
3   com.apple.JavaScriptCore      	0x00370b81 KJS::Interpreter::evaluate(KJS::UString const&, int, KJS::UChar const*, int, KJS::JSValue*) + 209
4   com.apple.WebCore             	0x010ae40a WebCore::KJSProxy::evaluate(WebCore::String const&, int, WebCore::String const&) + 202
5   com.apple.WebCore             	0x00c74f2b WebCore::FrameLoader::executeScript(WebCore::String const&, int, WebCore::String const&) + 75
6   com.apple.WebCore             	0x00cd1b5b WebCore::HTMLTokenizer::scriptExecution(WebCore::DeprecatedString const&, WebCore::HTMLTokenizer::State, WebCore::DeprecatedString, int) + 363
7   com.apple.WebCore             	0x00cd21a2 WebCore::HTMLTokenizer::notifyFinished(WebCore::CachedResource*) + 1138
8   com.apple.WebCore             	0x00b6bd8c WebCore::CachedScript::checkNotify() + 60
9   com.apple.WebCore             	0x00b6c0f0 WebCore::CachedScript::data(WTF::PassRefPtr<WebCore::SharedBuffer>, bool) + 240
10  com.apple.WebCore             	0x010bc290 WebCore::Loader::didFinishLoading(WebCore::SubresourceLoader*) + 288
11  com.apple.WebCore             	0x01042b21 WebCore::SubresourceLoader::didFinishLoading() + 49
12  com.apple.WebCore             	0x00f0b048 -[WebCoreResourceHandleAsDelegate connectionDidFinishLoading:] + 72
13  com.apple.Foundation          	0x929a0357 -[NSURLConnection(NSURLConnectionReallyInternal) sendDidFinishLoading] + 87
14  com.apple.Foundation          	0x929a02e4 _NSURLConnectionDidFinishLoading + 68
15  com.apple.CFNetwork           	0x9391badf sendDidFinishLoadingCallback + 148
16  com.apple.CFNetwork           	0x939189d2 _CFURLConnectionSendCallbacks + 1908
17  com.apple.CFNetwork           	0x939181e3 muxerSourcePerform + 283
18  com.apple.CoreFoundation      	0x967ea64e CFRunLoopRunSpecific + 3166
19  com.apple.CoreFoundation      	0x967ead38 CFRunLoopRunInMode + 88
20  com.apple.HIToolbox           	0x95c2d8a4 RunCurrentEventLoopInMode + 283
21  com.apple.HIToolbox           	0x95c2d6bd ReceiveNextEventCommon + 374
22  com.apple.HIToolbox           	0x95c2d531 BlockUntilNextEventMatchingListInMode + 106
23  com.apple.AppKit              	0x9079fd5b _DPSNextEvent + 657
24  com.apple.AppKit              	0x9079f6a0 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
25  com.apple.Safari              	0x00009d4e 0x1000 + 36174
26  com.apple.AppKit              	0x907986d1 -[NSApplication run] + 795
27  com.apple.AppKit              	0x907659ba NSApplicationMain + 574
28  com.apple.Safari              	0x00002876 0x1000 + 6262

Thread 1:
0   libSystem.B.dylib             	0x900bcace __semwait_signal + 10
1   libSystem.B.dylib             	0x900e6ced pthread_cond_wait$UNIX2003 + 73
2   com.apple.WebCore             	0x00ce6c4f WebCore::IconDatabase::syncThreadMainLoop() + 239
3   com.apple.WebCore             	0x00ce6d65 WebCore::IconDatabase::iconDatabaseSyncThread() + 181
4   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
5   libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 2:
0   libSystem.B.dylib             	0x900b58e6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x900bd0dc mach_msg + 72
2   com.apple.CoreFoundation      	0x967ea0fe CFRunLoopRunSpecific + 1806
3   com.apple.CoreFoundation      	0x967ead38 CFRunLoopRunInMode + 88
4   com.apple.CFNetwork           	0x939137c2 CFURLCacheWorkerThread(void*) + 396
5   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
6   libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 3:
0   libSystem.B.dylib             	0x900b58e6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x900bd0dc mach_msg + 72
2   com.apple.CoreFoundation      	0x967ea0fe CFRunLoopRunSpecific + 1806
3   com.apple.CoreFoundation      	0x967ead38 CFRunLoopRunInMode + 88
4   com.apple.Foundation          	0x9299e560 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 320
5   com.apple.Foundation          	0x9293b04d -[NSThread main] + 45
6   com.apple.Foundation          	0x9293abf4 __NSThread__main__ + 308
7   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
8   libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 4:
0   libSystem.B.dylib             	0x90104f5a select$DARWIN_EXTSN + 10
1   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
2   libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 5:
0   libSystem.B.dylib             	0x900b58e6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x900bd0dc mach_msg + 72
2   com.apple.CoreFoundation      	0x967ea0fe CFRunLoopRunSpecific + 1806
3   com.apple.CoreFoundation      	0x967ead38 CFRunLoopRunInMode + 88
4   com.apple.CFNetwork           	0x93960d45 _KeychainThread + 230
5   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
6   libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 6:
0   libSystem.B.dylib             	0x900b5946 semaphore_timedwait_signal_trap + 10
1   libSystem.B.dylib             	0x900e71cf _pthread_cond_wait + 1244
2   libSystem.B.dylib             	0x900e8a53 pthread_cond_timedwait_relative_np + 47
3   com.apple.Foundation          	0x92980f9c -[NSCondition waitUntilDate:] + 236
4   com.apple.Foundation          	0x92980db0 -[NSConditionLock lockWhenCondition:beforeDate:] + 144
5   com.apple.Foundation          	0x92980d15 -[NSConditionLock lockWhenCondition:] + 69
6   com.apple.AppKit              	0x90805c19 -[NSUIHeartBeat _heartBeatThread:] + 746
7   com.apple.Foundation          	0x9293b04d -[NSThread main] + 45
8   com.apple.Foundation          	0x9293abf4 __NSThread__main__ + 308
9   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
10  libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 7:
0   libSystem.B.dylib             	0x900b58e6 mach_msg_trap + 10
1   libSystem.B.dylib             	0x900bd0dc mach_msg + 72
2   com.apple.CoreFoundation      	0x967ea0fe CFRunLoopRunSpecific + 1806
3   com.apple.CoreFoundation      	0x967ead38 CFRunLoopRunInMode + 88
4   com.apple.Foundation          	0x9296f5b5 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 213
5   com.apple.Foundation          	0x9297b6d4 -[NSRunLoop(NSRunLoop) run] + 84
6   com.apple.Safari              	0x0004edd0 0x1000 + 318928
7   com.apple.Foundation          	0x9293b04d -[NSThread main] + 45
8   com.apple.Foundation          	0x9293abf4 __NSThread__main__ + 308
9   libSystem.B.dylib             	0x900e6075 _pthread_start + 321
10  libSystem.B.dylib             	0x900e5f32 thread_start + 34

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000002  ebx: 0x002fbceb  ecx: 0x00000010  edx: 0xe8e2ffe8
  edi: 0x0044f01c  esi: 0x0044f01c  ebp: 0xbfffcc08  esp: 0xbfffcb30
   ss: 0x0000001f  efl: 0x00010202  eip: 0x002fbe47   cs: 0x00000017
   ds: 0x0000001f   es: 0x0000001f   fs: 0x00000000   gs: 0x00000037
  cr2: 0xe8e2ffe8

Binary Images:
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  0x176000 -   0x177ffc +WebKitNightlyEnabler.dylib ??? (???) /Applications/WebKit.app/Contents/Resources/WebKitNightlyEnabler.dylib
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  0x2cb000 -   0x2d9ff8  SyndicationUI ??? (???) <8adc35e1eb5001dead3c18ee25f2e8db> /System/Library/PrivateFrameworks/SyndicationUI.framework/Versions/A/SyndicationUI
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  0xaf1000 -  0x114afff  com.apple.WebCore 525.1+ (525.1+) /Applications/WebKit.app/Contents/Frameworks/10.5/WebCore.framework/Versions/A/WebCore
0x129c3000 - 0x12aa9ff7  com.apple.RawCamera.bundle 2.0 (2.0) /System/Library/CoreServices/RawCamera.bundle/Contents/MacOS/RawCamera
0x153d1000 - 0x153d2ff3  ATSHI.dylib ??? (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/ATSHI.dylib
0x162ba000 - 0x162baffe  com.apple.JavaPluginCocoa 12.0.0 (12.0.0) <02a9f23a8bfc902c32ac0adfb66d6816> /Library/Internet Plug-Ins/JavaPluginCocoa.bundle/Contents/MacOS/JavaPluginCocoa
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0x17f50000 - 0x17f51ff7 +com.google.GoogleNotifierQuickAddCMPlugin ??? (0.0.1.2) /Users/dieterkomendera/Library/Contextual Menu Items/Google Notifier Quick Add CM Plugin.plugin/Contents/MacOS/Google Notifier Quick Add CM Plugin
0x17f56000 - 0x17f58ffe  com.apple.AutomatorCMM 1.1 (153) <1437bba93b42b020c74a4fd2574b53ea> /System/Library/Contextual Menu Items/AutomatorCMM.plugin/Contents/MacOS/AutomatorCMM
0x17f5e000 - 0x17f5fffc  com.apple.BluetoothMenu 2.0 (2.0f20) /System/Library/Contextual Menu Items/BluetoothContextualMenu.plugin/Contents/MacOS/BluetoothContextualMenu
0x17f64000 - 0x17f67fff  com.apple.BezelServicesFW 1.4.533 (1.4.533) /System/Library/PrivateFrameworks/BezelServices.framework/Versions/A/BezelServices
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0x8fe00000 - 0x8fe2d883  dyld 95.3 (???) <81592e798780564b5d46b988f7ee1a6a> /usr/lib/dyld
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0x9003a000 - 0x900b4ff8  com.apple.print.framework.PrintCore 5.5 (245) <9441d178f4b430cf92b67bf346646693> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
0x900b5000 - 0x9020ffe3  libSystem.B.dylib ??? (???) <8ecc83dc0399be3946f7a46e88cf4bbb> /usr/lib/libSystem.B.dylib
0x9025e000 - 0x9066efef  libBLAS.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
0x9071d000 - 0x9075efe7  libRIP.A.dylib ??? (???) <bdc6d70bf4ed3dace321b4ff76a353b3> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
0x9075f000 - 0x90f59fef  com.apple.AppKit 6.5 (949) <f8d0f6d0bb5ac092f48f42ca684bdb54> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x90f5a000 - 0x91233fe7  com.apple.CoreServices.CarbonCore 783 (783) <8370e664eeb25edc98d5c1f5405b06ae> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
0x91234000 - 0x9123cfff  com.apple.DiskArbitration 2.2 (2.2) <1551b2af557fdf6f368f93e093933852> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
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0x912d0000 - 0x912d7ffe  libbsm.dylib ??? (???) <d25c63378a5029648ffd4b4669be31bf> /usr/lib/libbsm.dylib
0x912d8000 - 0x912e8ffc  com.apple.LangAnalysis 1.6.4 (1.6.4) <cbeb17ab39f28351fe2ab5b82bf465bc> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
0x912e9000 - 0x912f3feb  com.apple.audio.SoundManager 3.9.2 (3.9.2) <0f2ba6e891d3761212cf5a5e6134d683> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.framework/Versions/A/CarbonSound
0x912f4000 - 0x912f9fff  com.apple.backup.framework 1.0 (1.0) /System/Library/PrivateFrameworks/Backup.framework/Versions/A/Backup
0x912fa000 - 0x91318ff3  com.apple.DirectoryService.Framework 3.5 (3.5) <899d8c9ee31b004a6ff73dab88982b1a> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryService
0x913c3000 - 0x91456fff  com.apple.ink.framework 101.3 (86) <bf3fa8927b4b8baae92381a976fd2079> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink
0x9161b000 - 0x91626fe7  libCSync.A.dylib ??? (???) <df82fc093e498a9eb5490761cb292218> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x91627000 - 0x9170bffb  com.apple.CoreData 100 (185) <a4e63784275e25e62f57e75e0af0b94d> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
0x9170c000 - 0x9170eff5  libRadiance.dylib ??? (???) <20eadb285da83df96c795c2c5fa20590> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x9171c000 - 0x9172cfff  com.apple.speech.synthesis.framework 3.6.59 (3.6.59) <4ffef145fad3d4d787e0c33eab26b336> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x9172d000 - 0x9175afeb  libvDSP.dylib ??? (???) <a26683d121ee0f96df9a9d0bfca36049> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib
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0x9175e000 - 0x917dafeb  com.apple.audio.CoreAudio 3.1.0 (3.1) <70bb7c657061631491029a61babe0b26> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
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0x91838000 - 0x91882fe1  com.apple.securityinterface 3.0 (32532) <f521dae416ce7a3bdd594b0d4e2fb517> /System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface
0x918a2000 - 0x918c1ffa  libJPEG.dylib ??? (???) <0cfb80109d624beb9ceb3c43b6c5ec10> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
0x918c2000 - 0x918feff7  com.apple.CoreMediaIOServicesPrivate 1.2 (1.2) /System/Library/PrivateFrameworks/CoreMediaIOServicesPrivate.framework/Versions/A/CoreMediaIOServicesPrivate
0x918ff000 - 0x91923feb  libssl.0.9.7.dylib ??? (???) <acee7fc534674498dcac211318aa23e8> /usr/lib/libssl.0.9.7.dylib
0x91924000 - 0x91929fff  com.apple.CommonPanels 1.2.4 (85) <ea0665f57cd267609466ed8b2b20e893> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels.framework/Versions/A/CommonPanels
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0x91e11000 - 0x91e15fff  libGIF.dylib ??? (???) <d4234e6f5e5f530bdafb969157f1f17b> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
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0x91edb000 - 0x91ef1fe7  com.apple.CoreVideo 1.5.0 (1.5.0) <8947e88900afa1d2ca78b69bff98b0d7> /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo
0x91ef2000 - 0x91f31fef  libTIFF.dylib ??? (???) <6d0f80e9d4d81f3f64c876aca005bd53> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
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0x92026000 - 0x920b0fff  com.apple.framework.IOKit 1.5.1 (???) <5176a7383151a19c962334009fef2c6d> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x920b1000 - 0x9210effb  libstdc++.6.dylib ??? (???) <04b812dcec670daa8b7d2852ab14be60> /usr/lib/libstdc++.6.dylib
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0x923e0000 - 0x923e0ffb  com.apple.installserver.framework 1.0 (8) /System/Library/PrivateFrameworks/InstallServer.framework/Versions/A/InstallServer
0x92518000 - 0x92571fff  libGLU.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x92572000 - 0x92930fea  libLAPACK.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
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0x92bb7000 - 0x92bf4ff7  libGLImage.dylib ??? (???) <202d73e6a4688fc06ff11b71910c2ce7> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x92bf5000 - 0x92bf5fff  com.apple.Carbon 136 (136) <98a5e3bc0c4fa44bbb09713bb88707fe> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
0x92bf6000 - 0x92c9dfff  com.apple.QD 3.11.50 (???) <e2f71720ae1dad06a8883ac80775b21a> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
0x92c9e000 - 0x92d29ff7  com.apple.QTKit 7.3 (7.3) /System/Library/Frameworks/QTKit.framework/Versions/A/QTKit
0x92e3c000 - 0x92e3cff8  com.apple.Cocoa 6.5 (???) <e064f94d969ce25cb7de3cfb980c3249> /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
0x92e3d000 - 0x92e65ff7  com.apple.shortcut 1 (1.0) <057783867138902b52bc0941fedb74d1> /System/Library/PrivateFrameworks/Shortcut.framework/Versions/A/Shortcut
0x92e66000 - 0x92f8afe3  com.apple.audio.toolbox.AudioToolbox 1.5 (1.5) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
0x92f8b000 - 0x92f98fe7  com.apple.opengl 1.5.5 (1.5.5) <aa08b52d2a84b44dc6ee5d544a53fe8a> /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
0x92f99000 - 0x92faffff  com.apple.DictionaryServices 1.0.0 (1.0.0) <ad0aa0252e3323d182e17f50defe56fc> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices
0x92fe0000 - 0x93030ff7  com.apple.HIServices 1.6.0 (???) <d74aa73e4cfd30a08fb169198a8d2539> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
0x93031000 - 0x93049fff  com.apple.openscripting 1.2.6 (???) <b8e553df643f2aec68fa968b3b459b2b> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/OpenScripting.framework/Versions/A/OpenScripting
0x9304a000 - 0x9304bffc  libffi.dylib ??? (???) <a3b573eb950ca583290f7b2b4c486d09> /usr/lib/libffi.dylib
0x9304c000 - 0x93073fff  libcups.2.dylib ??? (???) <6b61eb99e6f5dd2d66cd224e9f82427d> /usr/lib/libcups.2.dylib
0x93074000 - 0x9370bfef  com.apple.CoreGraphics 1.351.0 (???) <7a6f399039eed6dbe845c169f7d21a70> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics
0x9370c000 - 0x9378bff5  com.apple.SearchKit 1.2.0 (1.2.0) <277b460da86bc222785159fe77e2e2ed> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
0x9378c000 - 0x93842fe3  com.apple.CoreServices.OSServices 210.2 (210.2) <4ed69f07fc0f211ab32d1ee96e281fc2> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
0x93843000 - 0x938a8ffb  com.apple.ISSupport 1.6 (34) /System/Library/PrivateFrameworks/ISSupport.framework/Versions/A/ISSupport
0x938a9000 - 0x938a9ff8  com.apple.ApplicationServices 34 (34) <8f910fa65f01d401ad8d04cc933cf887> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
0x938aa000 - 0x938cefff  libxslt.1.dylib ??? (???) <4933ddc7f6618743197aadc85b33b5ab> /usr/lib/libxslt.1.dylib
0x938dd000 - 0x93907fef  libauto.dylib ??? (???) <d468bc4a8a69343f1748c293db1b57fb> /usr/lib/libauto.dylib
0x93908000 - 0x9397ffe3  com.apple.CFNetwork 220 (220) <0ae8fbcbadcb9bd8d673aa4531c0fcfc> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x93a75000 - 0x93a84fff  libsasl2.2.dylib ??? (???) <b9e1ca0b6612e280b6cbea6df0eec5f6> /usr/lib/libsasl2.2.dylib
0x93a85000 - 0x93adfff7  com.apple.CoreText 2.0.0 (???) <7fa39cd5bc847615ec02e7c7a37c0508> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText
0x93ae0000 - 0x93afefff  libresolv.9.dylib ??? (???) <54e6a08c2f108bdf5916fb483d51961b> /usr/lib/libresolv.9.dylib
0x93aff000 - 0x93e95ff7  com.apple.QuartzCore 1.5.1 (1.5.1) <deb61cbeb3f734a1b2f4669f6268b9de> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
0x93ec7000 - 0x93ec7ffa  com.apple.CoreServices 32 (32) <2fcc8f3bd5bbfc000b476cad8e6a3dd2> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x93ec8000 - 0x93fc9fff  com.apple.PubSub 1.0.1 (59) /System/Library/Frameworks/PubSub.framework/Versions/A/PubSub
0x93fca000 - 0x93fd8ffd  libz.1.dylib ??? (???) <5ddd8539ae2ebfd8e7cc1c57525385c7> /usr/lib/libz.1.dylib
0x93fd9000 - 0x93ffcfff  com.apple.CoreMediaPrivate 1.2 (1.2) <f2f275de4f50406fbebc42603399f029> /System/Library/PrivateFrameworks/CoreMediaPrivate.framework/Versions/A/CoreMediaPrivate
0x93ffd000 - 0x94003fff  com.apple.print.framework.Print 218 (220) <c35172175abbe554ddadd9b6401351fa> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framework/Versions/A/Print
0x94004000 - 0x94004ffd  com.apple.vecLib 3.4 (vecLib 3.4) /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
0x9413a000 - 0x9413dfff  com.apple.help 1.1 (36) <b507b08e484cb89033e9cf23062d77de> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help
0x9413e000 - 0x94152ff3  com.apple.ImageCapture 4.0 (5.0.0) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
0x94fd4000 - 0x9509bff2  com.apple.vImage 3.0 (3.0) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
0x9509c000 - 0x9521afff  com.apple.AddressBook.framework 4.1 (687) <3f005092d08e963eabe8f7f66c09cc1e> /System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook
0x9521b000 - 0x9521cfef  libmathCommon.A.dylib ??? (???) /usr/lib/system/libmathCommon.A.dylib
0x95262000 - 0x9526eff5  libGL.dylib ??? (???) /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x9526f000 - 0x95276ff7  libCGATS.A.dylib ??? (???) <9b29a5500efe01cc3adea67bbc42568e> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x9578d000 - 0x95798ff9  com.apple.helpdata 1.0 (14) /System/Library/PrivateFrameworks/HelpData.framework/Versions/A/HelpData
0x95a12000 - 0x95ac4ffb  libcrypto.0.9.7.dylib ??? (???) <330b0e48e67faffc8c22dfc069ca7a47> /usr/lib/libcrypto.0.9.7.dylib
0x95ac5000 - 0x95bfdff7  libicucore.A.dylib ??? (???) <afcea652ff2ec36885b2c81c57d06d4c> /usr/lib/libicucore.A.dylib
0x95bfe000 - 0x95f04fff  com.apple.HIToolbox 1.5.0 (???) <1b872a7151ee3f80c9c736a3e46d00d9> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x95f05000 - 0x963d1ffe  libGLProgrammability.dylib ??? (???) <e8bc0af671427cf2b6279a035805a086> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgrammability.dylib
0x963d2000 - 0x96459ff7  libsqlite3.0.dylib ??? (???) <273efcb717e89c21207c851d7d33fda4> /usr/lib/libsqlite3.0.dylib
0x9645a000 - 0x9645affd  com.apple.Accelerate.vecLib 3.4 (vecLib 3.4) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
0x96465000 - 0x96777fe2  com.apple.QuickTime 7.3.0 (7.3.0) <adfe6f92ffe38bc57df6b8cb2e6ea9d9> /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
0x96778000 - 0x968aafe7  com.apple.CoreFoundation 6.5 (476) <8bfebc0dbad6fc33bea0fa00a1b9ec37> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x968ab000 - 0x968dafe3  com.apple.AE 402 (402) <994ba8e884aefe7bf1fc5987df099e7b> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
0x968e5000 - 0x9691fff7  com.apple.coreui 0.1 (60) /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
0x96920000 - 0x96927fe9  libgcc_s.1.dylib ??? (???) <f53c808e87d1184c0f9df63aef53ce0b> /usr/lib/libgcc_s.1.dylib
0x96928000 - 0x96943ffb  libPng.dylib ??? (???) <b6abcac36ec7654ff3e1cfa786b0117b> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
0x96944000 - 0x96a23fff  libobjc.A.dylib ??? (???) <5eda47fec2d0e7853b3506aa1fd2dafa> /usr/lib/libobjc.A.dylib
0x96a24000 - 0x96a69fef  com.apple.Metadata 10.5.0 (398) <4fd74fba0062c2e08ec4b1c10b40ff63> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
0x96a6a000 - 0x96af6ff7  com.apple.LaunchServices 284 (284) <0fb50a7a6fd38875f727fc2592a496e4> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
0x96b49000 - 0x96bbdfef  libvMisc.dylib ??? (???) /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
0x96c0b000 - 0x96cecff7  libxml2.2.dylib ??? (???) <450ec38b57fb46013847cce851001a2f> /usr/lib/libxml2.2.dylib
0x96ced000 - 0x96d49ff7  com.apple.htmlrendering 68 (1.1.3) <fe87a9dede38db00e6c8949942c6bd4f> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HTMLRendering.framework/Versions/A/HTMLRendering
0x96d4a000 - 0x96d4cfff  com.apple.CrashReporterSupport 10.5.0 (156) <3088b785b10d03504ed02f3fee5d3aab> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/Versions/A/CrashReporterSupport
0x96d4d000 - 0x96d4dffd  com.apple.Accelerate 1.4 (Accelerate 1.4) /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
0xba900000 - 0xba916fff  libJapaneseConverter.dylib ??? (???) <7b0248c392848338f5d6ed093313eeef> /System/Library/CoreServices/Encodings/libJapaneseConverter.dylib
0xfffe8000 - 0xfffebfff  libobjc.A.dylib ??? (???) /usr/lib/libobjc.A.dylib
0xffff0000 - 0xffff1780  libSystem.B.dylib ??? (???) /usr/lib/libSystem.B.dylib

[Matt Lilek]

Confirmed with r28011.  My debug build spits a bunch of this to the console:

Safari(16501,0xa01c3f60) malloc: *** error for object 0x1a3a2c00: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xa01c3f60) malloc: *** error for object 0x1a3a2c10: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xa01c3f60) malloc: *** error for object 0x1a3a2c20: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xa01c3f60) malloc: *** error for object 0xf800d0: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf82cd0: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf82d20: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf845f0: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf84630: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf85bb0: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
ERROR: free is not supported
ERROR: (/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
ERROR: free is not supported
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
ERROR: free is not supported
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
ERROR: free is not supported
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
ERROR: free is not supported
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
ERROR: free is not supported
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/CollectorHeapIntrospector.h:56 static void KJS::CollectorHeapIntrospector::zoneFree(malloc_zone_t*, void*))
Safari(16501,0xb02cd000) malloc: *** error for object 0xf87830: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
Safari(16501,0xb02cd000) malloc: *** error for object 0xf87870: Non-aligned pointer being freed (2)
*** set a breakpoint in malloc_error_break to debug
ERROR: free is not supported

And the stack trace from my debug build:
Thread 0 Crashed:
0   libSystem.B.dylib             	0x911ec2af szone_free + 2101
1   libSystem.B.dylib             	0x911eb9ed free + 106
2   com.apple.JavaScriptCore      	0x0041ef9e WTF::fastFree(void*) + 86 (FastMalloc.cpp:172)
3   com.apple.JavaScriptCore      	0x0046714f WTF::VectorBufferBase<WTF::RefPtr<KJS::StatementNode> >::deallocateBuffer(WTF::RefPtr<KJS::StatementNode>*) + 17 (Vector.h:257)
4   com.apple.JavaScriptCore      	0x00467172 WTF::VectorBuffer<WTF::RefPtr<KJS::StatementNode>, 0ul>::~VectorBuffer() + 32 (Vector.h:313)
5   com.apple.JavaScriptCore      	0x00467191 WTF::VectorBuffer<WTF::RefPtr<KJS::StatementNode>, 0ul>::~VectorBuffer() + 17 (Vector.h:313)
6   com.apple.JavaScriptCore      	0x00476d3b WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 31 (Vector.h:409)
7   com.apple.JavaScriptCore      	0x00476d4f WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
8   com.apple.JavaScriptCore      	0x00478de7 void WTF::deleteOwnedPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >(WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>*) + 29 (OwnPtr.h:52)
9   com.apple.JavaScriptCore      	0x00478e0d WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 19 (OwnPtr.h:70)
10  com.apple.JavaScriptCore      	0x00478e2b WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 17 (OwnPtr.h:70)
11  com.apple.JavaScriptCore      	0x0047f0ef KJS::BlockNode::~BlockNode() + 41 (nodes.h:1751)
12  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
13  com.apple.JavaScriptCore      	0x00476c1a WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 28 (RefPtr.h:45)
14  com.apple.JavaScriptCore      	0x00476c2d WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 17 (RefPtr.h:45)
15  com.apple.JavaScriptCore      	0x0047eead KJS::IfNode::~IfNode() + 55 (nodes.h:1779)
16  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
17  com.apple.JavaScriptCore      	0x00476c1a WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 28 (RefPtr.h:45)
18  com.apple.JavaScriptCore      	0x00476c2d WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 17 (RefPtr.h:45)
19  com.apple.JavaScriptCore      	0x00476c49 WTF::VectorDestructor<true, WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 25 (Vector.h:53)
20  com.apple.JavaScriptCore      	0x00476c72 WTF::VectorTypeOperations<WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 24 (Vector.h:209)
21  com.apple.JavaScriptCore      	0x00476cf0 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::shrink(unsigned long) + 124 (Vector.h:632)
22  com.apple.JavaScriptCore      	0x00476d19 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::clear() + 25 (Vector.h:455)
23  com.apple.JavaScriptCore      	0x00476d2d WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
24  com.apple.JavaScriptCore      	0x00476d4f WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
25  com.apple.JavaScriptCore      	0x00478de7 void WTF::deleteOwnedPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >(WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>*) + 29 (OwnPtr.h:52)
26  com.apple.JavaScriptCore      	0x00478e0d WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 19 (OwnPtr.h:70)
27  com.apple.JavaScriptCore      	0x00478e2b WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 17 (OwnPtr.h:70)
28  com.apple.JavaScriptCore      	0x0047e84f KJS::BlockNode::~BlockNode() + 41 (nodes.h:1751)
29  com.apple.JavaScriptCore      	0x004814a6 KJS::FunctionBodyNode::~FunctionBodyNode() + 112 (nodes.h:1954)
30  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
31  com.apple.JavaScriptCore      	0x00476be8 WTF::RefPtr<KJS::FunctionBodyNode>::~RefPtr() + 28 (RefPtr.h:45)
32  com.apple.JavaScriptCore      	0x00476bfb WTF::RefPtr<KJS::FunctionBodyNode>::~RefPtr() + 17 (RefPtr.h:45)
33  com.apple.JavaScriptCore      	0x0047e5eb KJS::FuncExprNode::~FuncExprNode() + 41 (nodes.h:1994)
34  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
35  com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
36  com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
37  com.apple.JavaScriptCore      	0x00480fe9 KJS::PropertyNode::~PropertyNode() + 41 (nodes.h:388)
38  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
39  com.apple.JavaScriptCore      	0x004775e6 WTF::RefPtr<KJS::PropertyNode>::~RefPtr() + 28 (RefPtr.h:45)
40  com.apple.JavaScriptCore      	0x004775f9 WTF::RefPtr<KJS::PropertyNode>::~RefPtr() + 17 (RefPtr.h:45)
41  com.apple.JavaScriptCore      	0x00478a3f KJS::PropertyListNode::~PropertyListNode() + 55 (nodes.h:407)
42  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
43  com.apple.JavaScriptCore      	0x0047740c WTF::RefPtr<KJS::PropertyListNode>::operator=(WTF::PassRefPtr<KJS::PropertyListNode> const&) + 46 (RefPtr.h:120)
44  com.apple.JavaScriptCore      	0x00477535 WTF::ListRefPtr<KJS::PropertyListNode>::~ListRefPtr() + 99 (ListRefPtr.h:42)
45  com.apple.JavaScriptCore      	0x0047759f WTF::ListRefPtr<KJS::PropertyListNode>::~ListRefPtr() + 17 (ListRefPtr.h:42)
46  com.apple.JavaScriptCore      	0x00478a31 KJS::PropertyListNode::~PropertyListNode() + 41 (nodes.h:407)
47  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
48  com.apple.JavaScriptCore      	0x004774bc WTF::RefPtr<KJS::PropertyListNode>::~RefPtr() + 28 (RefPtr.h:45)
49  com.apple.JavaScriptCore      	0x004774cf WTF::RefPtr<KJS::PropertyListNode>::~RefPtr() + 17 (RefPtr.h:45)
50  com.apple.JavaScriptCore      	0x0047bc33 KJS::ObjectLiteralNode::~ObjectLiteralNode() + 41 (nodes.h:426)
51  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
52  com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
53  com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
54  com.apple.JavaScriptCore      	0x00478b09 KJS::ArgumentListNode::~ArgumentListNode() + 41 (nodes.h:484)
55  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
56  com.apple.JavaScriptCore      	0x0047720e WTF::RefPtr<KJS::ArgumentListNode>::~RefPtr() + 28 (RefPtr.h:45)
57  com.apple.JavaScriptCore      	0x00477221 WTF::RefPtr<KJS::ArgumentListNode>::~RefPtr() + 17 (RefPtr.h:45)
58  com.apple.JavaScriptCore      	0x00478bd3 KJS::ArgumentsNode::~ArgumentsNode() + 41 (nodes.h:502)
59  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
60  com.apple.JavaScriptCore      	0x004771dc WTF::RefPtr<KJS::ArgumentsNode>::~RefPtr() + 28 (RefPtr.h:45)
61  com.apple.JavaScriptCore      	0x004771ef WTF::RefPtr<KJS::ArgumentsNode>::~RefPtr() + 17 (RefPtr.h:45)
62  com.apple.JavaScriptCore      	0x00480ca5 KJS::FunctionCallDotNode::~FunctionCallDotNode() + 41 (nodes.h:609)
63  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
64  com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
65  com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
66  com.apple.JavaScriptCore      	0x0047ef93 KJS::ExprStatementNode::~ExprStatementNode() + 41 (nodes.h:1769)
67  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
68  com.apple.JavaScriptCore      	0x00476c1a WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 28 (RefPtr.h:45)
69  com.apple.JavaScriptCore      	0x00476c2d WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 17 (RefPtr.h:45)
70  com.apple.JavaScriptCore      	0x00476c49 WTF::VectorDestructor<true, WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 25 (Vector.h:53)
71  com.apple.JavaScriptCore      	0x00476c72 WTF::VectorTypeOperations<WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 24 (Vector.h:209)
72  com.apple.JavaScriptCore      	0x00476cf0 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::shrink(unsigned long) + 124 (Vector.h:632)
73  com.apple.JavaScriptCore      	0x00476d19 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::clear() + 25 (Vector.h:455)
74  com.apple.JavaScriptCore      	0x00476d2d WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
75  com.apple.JavaScriptCore      	0x00476d4f WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
76  com.apple.JavaScriptCore      	0x00478de7 void WTF::deleteOwnedPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >(WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>*) + 29 (OwnPtr.h:52)
77  com.apple.JavaScriptCore      	0x00478e0d WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 19 (OwnPtr.h:70)
78  com.apple.JavaScriptCore      	0x00478e2b WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 17 (OwnPtr.h:70)
79  com.apple.JavaScriptCore      	0x0047e84f KJS::BlockNode::~BlockNode() + 41 (nodes.h:1751)
80  com.apple.JavaScriptCore      	0x004814a6 KJS::FunctionBodyNode::~FunctionBodyNode() + 112 (nodes.h:1954)
81  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
82  com.apple.JavaScriptCore      	0x00476be8 WTF::RefPtr<KJS::FunctionBodyNode>::~RefPtr() + 28 (RefPtr.h:45)
83  com.apple.JavaScriptCore      	0x00476bfb WTF::RefPtr<KJS::FunctionBodyNode>::~RefPtr() + 17 (RefPtr.h:45)
84  com.apple.JavaScriptCore      	0x0047e5eb KJS::FuncExprNode::~FuncExprNode() + 41 (nodes.h:1994)
85  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
86  com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
87  com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
88  com.apple.JavaScriptCore      	0x00480fe9 KJS::PropertyNode::~PropertyNode() + 41 (nodes.h:388)
89  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
90  com.apple.JavaScriptCore      	0x004775e6 WTF::RefPtr<KJS::PropertyNode>::~RefPtr() + 28 (RefPtr.h:45)
91  com.apple.JavaScriptCore      	0x004775f9 WTF::RefPtr<KJS::PropertyNode>::~RefPtr() + 17 (RefPtr.h:45)
92  com.apple.JavaScriptCore      	0x00478a3f KJS::PropertyListNode::~PropertyListNode() + 55 (nodes.h:407)
93  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
94  com.apple.JavaScriptCore      	0x004774bc WTF::RefPtr<KJS::PropertyListNode>::~RefPtr() + 28 (RefPtr.h:45)
95  com.apple.JavaScriptCore      	0x004774cf WTF::RefPtr<KJS::PropertyListNode>::~RefPtr() + 17 (RefPtr.h:45)
96  com.apple.JavaScriptCore      	0x0047bc33 KJS::ObjectLiteralNode::~ObjectLiteralNode() + 41 (nodes.h:426)
97  com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
98  com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
99  com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
100 com.apple.JavaScriptCore      	0x0047fe61 KJS::AssignResolveNode::~AssignResolveNode() + 41 (nodes.h:1561)
101 com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
102 com.apple.JavaScriptCore      	0x004769ca WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 28 (RefPtr.h:45)
103 com.apple.JavaScriptCore      	0x004769dd WTF::RefPtr<KJS::ExpressionNode>::~RefPtr() + 17 (RefPtr.h:45)
104 com.apple.JavaScriptCore      	0x0047ef93 KJS::ExprStatementNode::~ExprStatementNode() + 41 (nodes.h:1769)
105 com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
106 com.apple.JavaScriptCore      	0x00476c1a WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 28 (RefPtr.h:45)
107 com.apple.JavaScriptCore      	0x00476c2d WTF::RefPtr<KJS::StatementNode>::~RefPtr() + 17 (RefPtr.h:45)
108 com.apple.JavaScriptCore      	0x00476c49 WTF::VectorDestructor<true, WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 25 (Vector.h:53)
109 com.apple.JavaScriptCore      	0x00476c72 WTF::VectorTypeOperations<WTF::RefPtr<KJS::StatementNode> >::destruct(WTF::RefPtr<KJS::StatementNode>*, WTF::RefPtr<KJS::StatementNode>*) + 24 (Vector.h:209)
110 com.apple.JavaScriptCore      	0x00476cf0 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::shrink(unsigned long) + 124 (Vector.h:632)
111 com.apple.JavaScriptCore      	0x00476d19 WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::clear() + 25 (Vector.h:455)
112 com.apple.JavaScriptCore      	0x00476d2d WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
113 com.apple.JavaScriptCore      	0x00476d4f WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>::~Vector() + 17 (Vector.h:409)
114 com.apple.JavaScriptCore      	0x00478de7 void WTF::deleteOwnedPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >(WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul>*) + 29 (OwnPtr.h:52)
115 com.apple.JavaScriptCore      	0x00478e0d WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 19 (OwnPtr.h:70)
116 com.apple.JavaScriptCore      	0x00478e2b WTF::OwnPtr<WTF::Vector<WTF::RefPtr<KJS::StatementNode>, 0ul> >::~OwnPtr() + 17 (OwnPtr.h:70)
117 com.apple.JavaScriptCore      	0x0047e84f KJS::BlockNode::~BlockNode() + 41 (nodes.h:1751)
118 com.apple.JavaScriptCore      	0x00481536 KJS::FunctionBodyNode::~FunctionBodyNode() + 112 (nodes.h:1954)
119 com.apple.JavaScriptCore      	0x00481592 KJS::ProgramNode::~ProgramNode() + 40 (nodes.h:2089)
120 com.apple.JavaScriptCore      	0x00423a77 KJS::Node::deref() + 307 (nodes.cpp:191)
121 com.apple.JavaScriptCore      	0x00477618 WTF::RefPtr<KJS::ProgramNode>::~RefPtr() + 28 (RefPtr.h:45)
122 com.apple.JavaScriptCore      	0x0047762b WTF::RefPtr<KJS::ProgramNode>::~RefPtr() + 17 (RefPtr.h:45)
123 com.apple.JavaScriptCore      	0x0045c303 KJS::Interpreter::evaluate(KJS::UString const&, int, KJS::UChar const*, int, KJS::JSValue*) + 1349 (interpreter.cpp:399)
124 com.apple.WebCore             	0x023f7029 WebCore::KJSProxy::evaluate(WebCore::String const&, int, WebCore::String const&) + 235 (kjs_proxy.cpp:87)
125 com.apple.WebCore             	0x01f37c5c WebCore::FrameLoader::executeScript(WebCore::String const&, int, WebCore::String const&) + 92 (FrameLoader.cpp:757)
126 com.apple.WebCore             	0x01fb504e WebCore::HTMLTokenizer::scriptExecution(WebCore::DeprecatedString const&, WebCore::HTMLTokenizer::State, WebCore::DeprecatedString, int) + 308 (HTMLTokenizer.cpp:520)
127 com.apple.WebCore             	0x01fb596c WebCore::HTMLTokenizer::notifyFinished(WebCore::CachedResource*) + 820 (HTMLTokenizer.cpp:1737)
128 com.apple.WebCore             	0x01e135aa WebCore::CachedScript::checkNotify() + 68 (CachedScript.cpp:97)
129 com.apple.WebCore             	0x01e1370b WebCore::CachedScript::data(WTF::PassRefPtr<WebCore::SharedBuffer>, bool) + 279 (CachedScript.cpp:89)
130 com.apple.WebCore             	0x024058cc WebCore::Loader::didFinishLoading(WebCore::SubresourceLoader*) + 340 (loader.cpp:116)
131 com.apple.WebCore             	0x02373847 WebCore::SubresourceLoader::didFinishLoading() + 169 (SubresourceLoader.cpp:195)
132 com.apple.WebCore             	0x0223a020 WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*) + 24 (ResourceLoader.cpp:362)
133 com.apple.WebCore             	0x02237a60 -[WebCoreResourceHandleAsDelegate connectionDidFinishLoading:] + 116 (ResourceHandleMac.mm:456)
134 com.apple.Foundation          	0x9372b357 -[NSURLConnection(NSURLConnectionReallyInternal) sendDidFinishLoading] + 87
135 com.apple.Foundation          	0x9372b2e4 _NSURLConnectionDidFinishLoading + 68
136 com.apple.CFNetwork           	0x966e6adf sendDidFinishLoadingCallback + 148
137 com.apple.CFNetwork           	0x966e39d2 _CFURLConnectionSendCallbacks + 1908
138 com.apple.CFNetwork           	0x966e31e3 muxerSourcePerform + 283
139 com.apple.CoreFoundation      	0x9063b64e CFRunLoopRunSpecific + 3166
140 com.apple.CoreFoundation      	0x9063bd38 CFRunLoopRunInMode + 88
141 com.apple.HIToolbox           	0x968f78a4 RunCurrentEventLoopInMode + 283
142 com.apple.HIToolbox           	0x968f76bd ReceiveNextEventCommon + 374
143 com.apple.HIToolbox           	0x968f7531 BlockUntilNextEventMatchingListInMode + 106
144 com.apple.AppKit              	0x90746d5b _DPSNextEvent + 657
145 com.apple.AppKit              	0x907466a0 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
146 com.apple.Safari              	0x00009d4e 0x1000 + 36174
147 com.apple.AppKit              	0x9073f6d1 -[NSApplication run] + 795
148 com.apple.AppKit              	0x9070c9ba NSApplicationMain + 574
149 com.apple.Safari              	0x00002876 0x1000 + 6262

[David Kilzer (:ddkilzer)]

This is a regression from shipping Safari 3.0.4 (523.12) with original WebKit on Mac OS X 10.4.11 (8S165).  (The page doesn't work, but loading it doesn't crash.)

[David Kilzer (:ddkilzer)]

The bisect-builds script reports:
Works: r27761  Fails: r27811

[David Kilzer (:ddkilzer)]

A delta <http://delta.tigris.org/> reduction of the original web page points to this JavaScript (opening this tag in an HTML file will reproduce the crash):

<script type="text/javascript" src="http://mysit.es/javascripts/codeeditors.js?v=1195518434"></script>

Note that I had to create my own "topformatflat" script:

#!/bin/sh
exec cat

My testit.sh script was:

#!/bin/sh

`/Volumes/WebKit/WebKit.app/Contents/MacOS/WebKit /tmp/delta/MySit.es.html`
STATUS=$?

echo ">>>>> $STATUS"

if [ $STATUS -eq 139 -o $STATUS -eq 138 ]; then
    exit 0;
fi

exit 1;

[David Kilzer (:ddkilzer)]

(In reply to comment #5)
> `/Volumes/WebKit/WebKit.app/Contents/MacOS/WebKit /tmp/delta/MySit.es.html`

Used WebKit nightly r28007.

[Mark Rowe (bdash)]

Loading this page under guard malloc triggers the following crash:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_PROTECTION_FAILURE at address: 0xe28f9000
0x00627c3a in jsRegExpCompile (pattern=0xe28f0fd0, patternLength=17, ignoreCase=JSRegExpDoNotIgnoreCase, multiline=JSRegExpSingleLine, numSubpatterns=0xe28f6ffc, errorptr=0xe28f6ff8) at /Volumes/Data/Home/Documents/Work/WebKit-git/OpenSource/JavaScriptCore/pcre/pcre_compile.cpp:3048
3048	    *code = OP_BRA;
(gdb) bt
#0  0x00627c3a in jsRegExpCompile (pattern=0xe28f0fd0, patternLength=17, ignoreCase=JSRegExpDoNotIgnoreCase, multiline=JSRegExpSingleLine, numSubpatterns=0xe28f6ffc, errorptr=0xe28f6ff8) at /Volumes/Data/Home/Documents/Work/WebKit-git/OpenSource/JavaScriptCore/pcre/pcre_compile.cpp:3048
#1  0x005953df in KJS::RegExp::RegExp (this=0xe28f6fe0, pattern=@0x31bb2ff8, flags=@0x31bb2ffc) at regexp.cpp:70
#2  0x0059540d in KJS::RegExp::RegExp (this=0xe28f6fe0, pattern=@0x31bb2ff8, flags=@0x31bb2ffc) at regexp.cpp:71
#3  0x005f6905 in KJS::RegExpNode::RegExpNode (this=0xe28f4ff0, pattern=@0x31bb2ff8, flags=@0x31bb2ffc) at nodes.h:281
#4  0x005f693b in KJS::RegExpNode::RegExpNode (this=0xe28f4ff0, pattern=@0x31bb2ff8, flags=@0x31bb2ffc) at nodes.h:283
#5  0x005c5653 in kjsyyparse () at grammar.y:227

I'm waiting through another guardmalloc run to see whether fixing this regexp issue fixed the malloc errors.

[David Kilzer (:ddkilzer)]

Created attachment 17513 [details]
Reduced test case (will crash ToT)

Another regular expression crasher.

I "inlined" the <script> tag and reran multidelta with the new source file.  It got the file down to 7 lines (including the script tags), but it was obvious that the regex was causing a crash at that point.

[Mark Rowe (bdash)]

I just need to build a layout test then I'll throw my fix up for review.

[Mark Rowe (bdash)]

Created attachment 17514 [details]
Patch

Comment on attachment 17514 [details]
Patch

r=me

[Mark Rowe (bdash)]

Landed in r28018.