Bug 11480 – REGESSION (17511) : Crash occurs at WebCore::Image::getNSImage() when dragging a link on a page

• Status: RESOLVED
• Resolution: FIXED
• Component: Layout and Rendering

[Chris Petersen]

Summary: When I mouse down and drag a link on a page, a crash occurs at WebCore::Image::getNSImage()

This is a regression that started with Webkit NB 17511. I'm not not sure what exact checkin broke this but here are a few that happen after r17507 ( the last NB that works correctly):

http://trac.webkit.org/projects/webkit/changeset/17511
http://trac.webkit.org/projects/webkit/changeset/17508



Steps that reproduce:

1) With Webkit Nightly r17511, go to any page that contains a link like www.google.com
2) Mouse down on any link on the page and try to drag it
3) While dragging the link, a crash occurs.


Date/Time:      2006-10-31 22:26:03.964 -0800
OS Version:     10.4.8 (Build 8L2127)
Report Version: 4

Command: Safari
Path:    /Users/cp/Desktop/Safari.app/Contents/MacOS/Safari
Parent:  WindowServer [56]

Version: ??? (17511)

PID:    519
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000038

Thread 0 Crashed:
0   com.apple.WebCore        	0x011c90df WebCore::Image::getNSImage() + 17
1   com.apple.WebKit         	0x00373808 -[WebElementDictionary objectForKey:] + 158
2   com.apple.WebKit         	0x0032d6ea -[WebHTMLView(WebPrivate) _mayStartDragAtEventLocation:] + 190
3   com.apple.WebKit         	0x0031f3e6 -[WebFrameBridge mayStartDragAtEventLocation:] + 86
4   com.apple.WebCore        	0x010f2241 WebCore::FrameMac::shouldDragAutoNode(WebCore::Node*, WebCore::IntPoint const&) const + 105
5   com.apple.WebCore        	0x011992cc WebCore::RenderObject::draggableNode(bool, bool, int, int, bool&) const + 182
6   com.apple.WebCore        	0x010f6f42 WebCore::FrameMac::handleMouseMoveEvent(WebCore::MouseEventWithHitTestResults const&) + 1890
7   com.apple.WebCore        	0x01100690 WebCore::FrameView::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&) + 906
8   com.apple.WebCore        	0x010f466c WebCore::FrameMac::mouseDragged(NSEvent*) + 194
9   com.apple.WebKit         	0x003318d2 -[WebHTMLView mouseDragged:] + 192
10  com.apple.AppKit         	0x9334bbe1 -[NSWindow sendEvent:] + 7377
11  com.apple.Safari         	0x000230c6 0x1000 + 139462
12  com.apple.AppKit         	0x9333d350 -[NSApplication sendEvent:] + 5023
13  com.apple.Safari         	0x00022c56 0x1000 + 138326
14  com.apple.AppKit         	0x93267dfe -[NSApplication run] + 547
15  com.apple.AppKit         	0x9325bd2f NSApplicationMain + 573
16  com.apple.Safari         	0x0005f54a 0x1000 + 386378
17  com.apple.Safari         	0x0005f471 0x1000 + 386161

Thread 1:
0   libSystem.B.dylib        	0x90009857 mach_msg_trap + 7
1   com.apple.CoreFoundation 	0x9082a2f3 CFRunLoopRunSpecific + 2014
2   com.apple.CoreFoundation 	0x90829b0e CFRunLoopRunInMode + 61
3   com.apple.Foundation     	0x92622a9b +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 259
4   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
5   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 2:
0   libSystem.B.dylib        	0x90009857 mach_msg_trap + 7
1   com.apple.CoreFoundation 	0x9082a2f3 CFRunLoopRunSpecific + 2014
2   com.apple.CoreFoundation 	0x90829b0e CFRunLoopRunInMode + 61
3   com.apple.Foundation     	0x92649c4e +[NSURLCache _diskCacheSyncLoop:] + 206
4   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
5   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 3:
0   libSystem.B.dylib        	0x90019d3c select + 12
1   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 4:
0   libSystem.B.dylib        	0x90024427 semaphore_wait_signal_trap + 7
1   com.apple.Foundation     	0x926432f8 -[NSConditionLock lockWhenCondition:] + 39
2   com.apple.Syndication    	0x9a4a7966 -[AsyncDB _run:] + 181
3   com.apple.Foundation     	0x925ed36c forkThreadForFunction + 123
4   libSystem.B.dylib        	0x90023d87 _pthread_body + 84

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000    ebx: 0x011c90dc ecx: 0xa0a53184 edx: 0x00000001
  edi: 0x00000000    esi: 0x00000000 ebp: 0xbffff488 esp: 0xbffff450
   ss: 0x0000001f    efl: 0x00010286 eip: 0x011c90df  cs: 0x00000017
   ds: 0x0000001f     es: 0x0000001f  fs: 0x00000000  gs: 0x00000037

Binary Images Description:
    0x1000 -    0xdbfff com.apple.Safari 2.0.4 (419.3)	/Users/cp/Desktop/Safari.app/Contents/MacOS/Safari
  0x10b000 -   0x10cfff WebKitNightlyEnabler.dylib 	/Users/cp/Desktop/17511.app/Contents/Resources/WebKitNightlyEnabler.dylib
  0x111000 -   0x190fff com.apple.JavaScriptCore 420+	/Users/cp/Desktop/17511.app/Contents/Resources/JavaScriptCore.framework/Versions/A/JavaScriptCore
  0x305000 -   0x39bfff com.apple.WebKit 420+	/Users/cp/Desktop/17511.app/Contents/Resources/WebKit.framework/Versions/A/WebKit
 0x1008000 -  0x147bfff com.apple.WebCore 420+	/Users/cp/Desktop/17511.app/Contents/Resources/WebCore.framework/Versions/A/WebCore
0x8fe00000 - 0x8fe49fff dyld 46.9	/usr/lib/dyld
0x90000000 - 0x9016ffff libSystem.B.dylib 	/usr/lib/libSystem.B.dylib
0x901bf000 - 0x901c1fff libmathCommon.A.dylib 	/usr/lib/system/libmathCommon.A.dylib
0x901c3000 - 0x90200fff com.apple.CoreText 1.1.1 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework/Versions/A/CoreText
0x90227000 - 0x902fdfff ATS 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS
0x9031d000 - 0x90771fff com.apple.CoreGraphics 1.258.38 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics
0x90808000 - 0x908d0fff com.apple.CoreFoundation 6.4.6 (368.27)	/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x9090e000 - 0x9090efff com.apple.CoreServices 10.4 (???)	/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x90910000 - 0x90a03fff libicucore.A.dylib 	/usr/lib/libicucore.A.dylib
0x90a53000 - 0x90ad2fff libobjc.A.dylib 	/usr/lib/libobjc.A.dylib
0x90afb000 - 0x90b5ffff libstdc++.6.dylib 	/usr/lib/libstdc++.6.dylib
0x90bce000 - 0x90bd5fff libgcc_s.1.dylib 	/usr/lib/libgcc_s.1.dylib
0x90bda000 - 0x90c4dfff com.apple.framework.IOKit 1.4.6 (???)	/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x90c62000 - 0x90c74fff libauto.dylib 	/usr/lib/libauto.dylib
0x90c7a000 - 0x90f20fff com.apple.CoreServices.CarbonCore 682.15	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
0x90f63000 - 0x90fcbfff com.apple.CoreServices.OSServices 4.1	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
0x91003000 - 0x91041fff com.apple.CFNetwork 129.19	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x91054000 - 0x91064fff com.apple.WebServices 1.1.3 (1.1.0)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/WebServicesCore.framework/Versions/A/WebServicesCore
0x9106f000 - 0x910edfff com.apple.SearchKit 1.0.5	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
0x91122000 - 0x91140fff com.apple.Metadata 10.4.4 (121.36)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
0x9114c000 - 0x9115afff libz.1.dylib 	/usr/lib/libz.1.dylib
0x9115d000 - 0x912fcfff com.apple.security 4.5.2 (29774)	/System/Library/Frameworks/Security.framework/Versions/A/Security
0x913fa000 - 0x91402fff com.apple.DiskArbitration 2.1.1	/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x91409000 - 0x9142ffff com.apple.SystemConfiguration 1.8.6	/System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
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0x9144c000 - 0x914c2fff com.apple.audio.CoreAudio 3.0.4	/System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
0x91513000 - 0x91513fff com.apple.ApplicationServices 10.4 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
0x91515000 - 0x91540fff com.apple.AE 314 (313)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
0x91553000 - 0x91627fff com.apple.ColorSync 4.4.8	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync
0x91662000 - 0x916d5fff com.apple.print.framework.PrintCore 4.6 (177.13)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
0x91703000 - 0x917acfff com.apple.QD 3.10.21 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
0x917d2000 - 0x9181dfff com.apple.HIServices 1.5.2 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
0x9183c000 - 0x91852fff com.apple.LangAnalysis 1.6.3	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
0x9185e000 - 0x91878fff com.apple.FindByContent 1.5	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/FindByContent.framework/Versions/A/FindByContent
0x91882000 - 0x918bffff com.apple.LaunchServices 181	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
0x918d3000 - 0x918dffff com.apple.speech.synthesis.framework 3.5	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x918e6000 - 0x91921fff com.apple.ImageIO.framework 1.5.0	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/ImageIO
0x91933000 - 0x919e5fff libcrypto.0.9.7.dylib 	/usr/lib/libcrypto.0.9.7.dylib
0x91a2b000 - 0x91a41fff libcups.2.dylib 	/usr/lib/libcups.2.dylib
0x91a46000 - 0x91a64fff libJPEG.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
0x91a69000 - 0x91ac7fff libJP2.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJP2.dylib
0x91ad9000 - 0x91addfff libGIF.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x91adf000 - 0x91b5cfff libRaw.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRaw.dylib
0x91b60000 - 0x91b9dfff libTIFF.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
0x91ba3000 - 0x91bbdfff libPng.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
0x91bc2000 - 0x91bc4fff libRadiance.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x91bc6000 - 0x91bc6fff com.apple.Accelerate 1.3.1 (Accelerate 1.3.1)	/System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
0x91bc8000 - 0x91c56fff com.apple.vImage 2.5	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
0x91c5d000 - 0x91c5dfff com.apple.Accelerate.vecLib 3.3.1 (vecLib 3.3.1)	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
0x91c5f000 - 0x91cb8fff libvMisc.dylib 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
0x91cc1000 - 0x91ce5fff libvDSP.dylib 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib
0x91ced000 - 0x920f6fff libBLAS.dylib 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
0x92130000 - 0x924e4fff libLAPACK.dylib 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
0x92511000 - 0x9258ffff com.apple.DesktopServices 1.3.5	/System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv
0x925d0000 - 0x92800fff com.apple.Foundation 6.4.7 (567.28)	/System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x9290c000 - 0x929eafff libxml2.2.dylib 	/usr/lib/libxml2.2.dylib
0x92a07000 - 0x92af4fff libiconv.2.dylib 	/usr/lib/libiconv.2.dylib
0x92b04000 - 0x92b1bfff libGL.dylib 	/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x92b26000 - 0x92b7efff libGLU.dylib 	/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x92b92000 - 0x92b92fff com.apple.Carbon 10.4 (???)	/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
0x92b94000 - 0x92ba4fff com.apple.ImageCapture 3.0.4	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
0x92bb3000 - 0x92bbbfff com.apple.speech.recognition.framework 3.6	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition
0x92bc1000 - 0x92bc6fff com.apple.securityhi 2.0.1 (24742)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
0x92bcc000 - 0x92c5dfff com.apple.ink.framework 101.2.1 (71)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink
0x92c71000 - 0x92c74fff com.apple.help 1.0.3 (32.1)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framework/Versions/A/Help
0x92c77000 - 0x92c95fff com.apple.openscripting 1.2.5 (???)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/OpenScripting.framework/Versions/A/OpenScripting
0x92ca7000 - 0x92cadfff com.apple.print.framework.Print 5.2 (192.4)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framework/Versions/A/Print
0x92cb3000 - 0x92d16fff com.apple.htmlrendering 66.1 (1.1.3)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HTMLRendering.framework/Versions/A/HTMLRendering
0x92d3a000 - 0x92d7bfff com.apple.NavigationServices 3.4.4 (3.4.3)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/NavigationServices.framework/Versions/A/NavigationServices
0x92da2000 - 0x92daffff com.apple.audio.SoundManager 3.9.1	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CarbonSound.framework/Versions/A/CarbonSound
0x92db6000 - 0x92dbbfff com.apple.CommonPanels 1.2.3 (73)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels.framework/Versions/A/CommonPanels
0x92dc0000 - 0x930b4fff com.apple.HIToolbox 1.4.8 (???)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x931ba000 - 0x931c5fff com.apple.opengl 1.4.12	/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
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0x93e3b000 - 0x93e3bfff com.apple.audio.units.AudioUnit 1.4.2	/System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
0x93e3d000 - 0x9400ffff com.apple.QuartzCore 1.4.9	/System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
0x94060000 - 0x940a1fff libsqlite3.0.dylib 	/usr/lib/libsqlite3.0.dylib
0x940a9000 - 0x940e3fff libGLImage.dylib 	/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x94171000 - 0x941affff com.apple.vmutils 4.0.2 (93.1)	/System/Library/PrivateFrameworks/vmutils.framework/Versions/A/vmutils
0x941f3000 - 0x94204fff com.apple.securityfoundation 2.2.1 (28150)	/System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation
0x94212000 - 0x94250fff com.apple.securityinterface 2.2.1 (27695)	/System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface
0x9426c000 - 0x9427bfff libCGATS.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x94282000 - 0x9428dfff libCSync.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x942d9000 - 0x942f3fff libRIP.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
0x94713000 - 0x94859fff com.apple.AddressBook.framework 4.0.4 (485.1)	/System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook
0x948e5000 - 0x948f4fff com.apple.DSObjCWrappers.Framework 1.1	/System/Library/PrivateFrameworks/DSObjCWrappers.framework/Versions/A/DSObjCWrappers
0x948fb000 - 0x94924fff com.apple.LDAPFramework 1.4.2 (69.1.1)	/System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
0x9492a000 - 0x94939fff libsasl2.2.dylib 	/usr/lib/libsasl2.2.dylib
0x9493d000 - 0x94962fff libssl.0.9.7.dylib 	/usr/lib/libssl.0.9.7.dylib
0x9496e000 - 0x9498bfff libresolv.9.dylib 	/usr/lib/libresolv.9.dylib
0x95713000 - 0x95736fff libxslt.1.dylib 	/usr/lib/libxslt.1.dylib
0x97050000 - 0x97055fff com.apple.agl 2.5.9 (AGL-2.5.9)	/System/Library/Frameworks/AGL.framework/Versions/A/AGL
0x9a4a5000 - 0x9a4dcfff com.apple.Syndication 1.0.6 (54)	/System/Library/PrivateFrameworks/Syndication.framework/Versions/A/Syndication
0x9a4f8000 - 0x9a50afff com.apple.SyndicationUI 1.0.6 (54)	/System/Library/PrivateFrameworks/SyndicationUI.framework/Versions/A/SyndicationUI

Model: M9ADP1,1, BootROM AAPLM091.0056.B00, 2 processors, Intel Core Duo, 2.16 GHz, 1 GB
Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x86), 0.1.27
Bluetooth: Version 1.7.9f12, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: Hitachi HTS721010G9SA00, 93.16 GB
Parallel ATA Device: MATSHITADVD-R   UJ-846
USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA
USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA

3) A crash occurs

[Chris Petersen]

This is covered by <rdar://problem/4813367> 

*** Bug 11479 has been marked as a duplicate of this bug. ***

Fixed. http://trac.webkit.org/projects/webkit/changeset/17514