7739 – TOT REGRESSION: Assertion failure loading acid2 test in -[WebCoreFrameBridge installInFrame:]

Bug 7739 - TOT REGRESSION: Assertion failure loading acid2 test in -[WebCoreFrameBridge installInFrame:]

Summary: TOT REGRESSION: Assertion failure loading acid2 test in -[WebCoreFrameBridge ...

Status:	RESOLVED FIXED

Alias:	None

Product:	WebKit
Classification:	Unclassified
Component:	New Bugs (show other bugs)
Version:	420+
Hardware:	Mac OS X 10.4

Importance:	P1 Critical
Assignee:	Trey Matteson

URL:	http://webstandards.org/act/acid2/tes...
Keywords:	InRadar, Regression

Depends on:
Blocks:

Reported:	2006-03-12 10:35 PST by Geoffrey Garen
Modified:	2006-03-31 12:26 PST (History)
CC List:	4 users (show)

See Also:

Attachments
propective patch, for discussion (838 bytes, patch) 2006-03-29 19:13 PST, Trey Matteson	no flags	Details \| Formatted Diff \| Diff
oops, bogus patch, pls ignore (1.81 KB, patch) 2006-03-30 13:08 PST, Trey Matteson	no flags	Details \| Formatted Diff \| Diff
proposed patch, for review (1.80 KB, patch) 2006-03-30 13:18 PST, Trey Matteson	mjs: review+	Details \| Formatted Diff \| Diff
additional patch for fixing Acid2 test case (14.43 KB, patch) 2006-03-30 13:31 PST, Trey Matteson	mjs: review+	Details \| Formatted Diff \| Diff
Show Obsolete (2) View All Add an attachment (proposed patch, testcase, etc.)

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Description Geoffrey Garen 2006-03-12 10:35:53 PST

http://webstandards.org/act/acid2/test.html#top

ASSERTION FAILED: self == [[self page] mainFrame] || m_frame->ownerRenderer() (/Volumes/Home/Users/ggaren/Labyrinth/OpenSource/WebCore/bridge/mac/WebCoreFrameBridge.mm:1027 -[WebCoreFrameBridge installInFrame:])

Date/Time:      2006-03-12 10:31:58.628 -0800
OS Version:     10.4.5 (Build 8H14)
Report Version: 4

Command: Safari
Path:    /Volumes/Home/Users/ggaren/symroots-TOT/Debug/Safari.app/Contents/MacOS/Safari
Parent:  WindowServer [77]

Version: 2.0.1 (420+)

PID:    6063
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_INVALID_ADDRESS (0x0001) at 0xbbadbeef

Thread 0 Crashed:
0   com.apple.WebCore        	0x01f15304 -[WebCoreFrameBridge installInFrame:] + 216 (WebCoreFrameBridge.mm:1027)
1   com.apple.WebKit         	0x0125f10c -[WebFrame(WebPrivate) _makeDocumentView] + 348 (WebFrame.m:641)
2   com.apple.WebKit         	0x0125ff98 -[WebFrame(WebPrivate) _transitionToCommitted:] + 3264 (WebFrame.m:805)
3   com.apple.WebKit         	0x012603a4 -[WebFrame(WebPrivate) _commitProvisionalLoad:] + 456 (WebFrame.m:856)
4   com.apple.WebKit         	0x012562ac -[WebDataSource(WebPrivate) _commitIfReady] + 164 (WebDataSource.m:628)
5   com.apple.WebKit         	0x01257ea0 -[WebDataSource(WebPrivate) _commitLoadWithData:] + 96 (WebDataSource.m:897)
6   com.apple.WebKit         	0x01256558 -[WebDataSource(WebPrivate) _receivedData:] + 196 (WebDataSource.m:650)
7   com.apple.WebKit         	0x012915b0 -[WebMainResourceLoader addData:] + 136 (WebMainResourceLoader.m:163)
8   com.apple.WebKit         	0x01251210 -[WebLoader didReceiveData:lengthReceived:] + 108 (WebLoader.m:535)
9   com.apple.WebKit         	0x01292b94 -[WebMainResourceLoader didReceiveData:lengthReceived:] + 724 (WebMainResourceLoader.m:378)
10  com.apple.WebKit         	0x01251d74 -[WebLoader connection:didReceiveData:lengthReceived:] + 188 (WebLoader.m:645)
11  com.apple.Foundation     	0x929077f4 -[NSURLConnection(NSURLConnectionInternal) _sendDidReceiveDataCallback] + 564
12  com.apple.Foundation     	0x92905c94 -[NSURLConnection(NSURLConnectionInternal) _sendCallbacks] + 488
13  com.apple.Foundation     	0x92905a30 _sendCallbacks + 156
14  com.apple.CoreFoundation 	0x9075ea68 __CFRunLoopDoSources0 + 384
15  com.apple.CoreFoundation 	0x9075df98 __CFRunLoopRun + 452
16  com.apple.CoreFoundation 	0x9075da18 CFRunLoopRunSpecific + 268
17  com.apple.HIToolbox      	0x9317d1e0 RunCurrentEventLoopInMode + 264
18  com.apple.HIToolbox      	0x9317c874 ReceiveNextEventCommon + 380
19  com.apple.HIToolbox      	0x9317c6e0 BlockUntilNextEventMatchingListInMode + 96
20  com.apple.AppKit         	0x9367b104 _DPSNextEvent + 384
21  com.apple.AppKit         	0x9367adc8 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 116
22  com.apple.Safari         	0x00030748 -[BrowserApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 296 (BrowserApplication.m:152)
23  com.apple.AppKit         	0x9367730c -[NSApplication run] + 472
24  com.apple.AppKit         	0x93767e68 NSApplicationMain + 452
25  com.apple.Safari         	0x000fb7cc main + 160 (main.m:23)
26  com.apple.Safari         	0x000023b0 _start + 340 (crt.c:272)
27  com.apple.Safari         	0x00002258 start + 60

Thread 1:
0   libSystem.B.dylib        	0x9000b1e8 mach_msg_trap + 8
1   libSystem.B.dylib        	0x9000b13c mach_msg + 60
2   com.apple.CoreFoundation 	0x9075e114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075da18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x928e4384 -[NSRunLoop runMode:beforeDate:] + 172
5   com.apple.Foundation     	0x928e42bc -[NSRunLoop run] + 76
6   com.apple.WebKit         	0x012c3a0c +[WebFileDatabase _syncLoop:] + 420 (WebFileDatabase.m:291)
7   com.apple.Foundation     	0x928d53b4 forkThreadForFunction + 108
8   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 2:
0   libSystem.B.dylib        	0x9000b1e8 mach_msg_trap + 8
1   libSystem.B.dylib        	0x9000b13c mach_msg + 60
2   com.apple.CoreFoundation 	0x9075e114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075da18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x928fc8bc +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 264
5   com.apple.Foundation     	0x928d53b4 forkThreadForFunction + 108
6   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 3:
0   libSystem.B.dylib        	0x9000b1e8 mach_msg_trap + 8
1   libSystem.B.dylib        	0x9000b13c mach_msg + 60
2   com.apple.CoreFoundation 	0x9075e114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075da18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x928fd9fc +[NSURLCache _diskCacheSyncLoop:] + 152
5   com.apple.Foundation     	0x928d53b4 forkThreadForFunction + 108
6   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 4:
0   libSystem.B.dylib        	0x9002b888 semaphore_wait_signal_trap + 8
1   libSystem.B.dylib        	0x9002fffc pthread_cond_wait + 488
2   com.apple.Foundation     	0x928dc520 -[NSConditionLock lockWhenCondition:] + 68
3   com.apple.Syndication    	0x99c9e50c -[AsyncDB _run:] + 192
4   com.apple.Foundation     	0x928d53b4 forkThreadForFunction + 108
5   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 5:
0   libSystem.B.dylib        	0x9001f1ec select + 12
1   com.apple.CoreFoundation 	0x907709a8 __CFSocketManager + 472
2   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 0 crashed with PPC Thread State 64:
  srr0: 0x0000000001f15304 srr1: 0x000000000200f030                        vrsave: 0x0000000000000000
    cr: 0x24028244          xer: 0x0000000000000001   lr: 0x0000000001f152f8  ctr: 0x0000000090001310
    r0: 0x0000000000000000   r1: 0x00000000bfffe340   r2: 0x00000000bbadbeef   r3: 0x00000000000000f8
    r4: 0x0000000000000000   r5: 0x00000000000000f8   r6: 0x00000000ffffffff   r7: 0x00000000000000f8
    r8: 0x0000000000000008   r9: 0x0000000000000000  r10: 0x00000000000000f8  r11: 0x00000000a000620c
   r12: 0x0000000090001310  r13: 0x0000000000000000  r14: 0x0000000000000001  r15: 0x0000000000000001
   r16: 0x0000000000000000  r17: 0x0000000000000000  r18: 0x000000000000881b  r19: 0x0000000000000000
   r20: 0x00000000101a26f2  r21: 0x00000000a28c75c0  r22: 0x00000000132f8c30  r23: 0x0000000000000000
   r24: 0x0000000000000a54  r25: 0x0000000000000000  r26: 0x0000000000000a54  r27: 0x00000000ffffffff
   r28: 0x0000000090a1d8dc  r29: 0x000000001321e570  r30: 0x00000000bfffe340  r31: 0x0000000001f1522c

Binary Images Description:
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 0x1d28000 -  0x2231fff com.apple.WebCore 420+	/Volumes/Home/Users/ggaren/symroots/Debug/WebCore.framework/Versions/A/WebCore
0x8fe00000 - 0x8fe54fff dyld 44.2	/usr/lib/dyld
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0x9020b000 - 0x90210fff libmathCommon.A.dylib 	/usr/lib/system/libmathCommon.A.dylib
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0x90292000 - 0x90343fff ATS 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS
0x90372000 - 0x906affff com.apple.CoreGraphics 1.256.33 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics
0x9073b000 - 0x90814fff com.apple.CoreFoundation 6.4.4 (368.25)	/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x9085d000 - 0x9085dfff com.apple.CoreServices 10.4 (???)	/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x9085f000 - 0x90961fff libicucore.A.dylib 	/usr/lib/libicucore.A.dylib
0x909bb000 - 0x90a3ffff libobjc.A.dylib 	/usr/lib/libobjc.A.dylib
0x90a69000 - 0x90ad7fff IOKit 	/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x90aee000 - 0x90b00fff libauto.dylib 	/usr/lib/libauto.dylib
0x90b07000 - 0x90ddffff com.apple.CoreServices.CarbonCore 681.3 (671.2)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
0x90e45000 - 0x90ec5fff com.apple.CoreServices.OSServices 4.1	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServices.framework/Versions/A/OSServices
0x90f0f000 - 0x90f50fff com.apple.CFNetwork 10.4.4 (129.9)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x90f65000 - 0x90f7dfff com.apple.WebServices 1.1.2 (1.1.0)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/WebServicesCore.framework/Versions/A/WebServicesCore
0x90f8d000 - 0x9100efff com.apple.SearchKit 1.0.5	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
0x91054000 - 0x9107efff com.apple.Metadata 10.4.4 (121.34)	/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
0x9108f000 - 0x9109dfff libz.1.dylib 	/usr/lib/libz.1.dylib
0x910a0000 - 0x91263fff com.apple.security 4.3 (25966)	/System/Library/Frameworks/Security.framework/Versions/A/Security
0x91366000 - 0x9136ffff com.apple.DiskArbitration 2.1	/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x91376000 - 0x9139dfff com.apple.SystemConfiguration 1.8.2	/System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
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0x913e4000 - 0x913ecfff libbsm.dylib 	/usr/lib/libbsm.dylib
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0x914af000 - 0x914affff com.apple.ApplicationServices 10.4 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
0x914b1000 - 0x914e9fff com.apple.AE 1.5 (297)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/AE.framework/Versions/A/AE
0x91504000 - 0x915d1fff com.apple.ColorSync 4.4.4	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync
0x91626000 - 0x916b9fff com.apple.print.framework.PrintCore 4.3 (172.3)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
0x91700000 - 0x917bdfff com.apple.QD 3.8.18 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
0x917fb000 - 0x91859fff com.apple.HIServices 1.5.1 (???)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
0x91887000 - 0x918abfff com.apple.LangAnalysis 1.6.1	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
0x918bf000 - 0x918e4fff com.apple.FindByContent 1.5	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/FindByContent.framework/Versions/A/FindByContent
0x918f7000 - 0x91939fff com.apple.LaunchServices 10.4.6 (168.3)	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
0x91955000 - 0x91969fff com.apple.speech.synthesis.framework 3.3	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x91977000 - 0x919b1fff com.apple.ImageIO.framework 1.4.4	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/ImageIO
0x919c6000 - 0x91a8efff libcrypto.0.9.7.dylib 	/usr/lib/libcrypto.0.9.7.dylib
0x91adc000 - 0x91af1fff libcups.2.dylib 	/usr/lib/libcups.2.dylib
0x91af6000 - 0x91b13fff libJPEG.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
0x91b18000 - 0x91b87fff libJP2.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJP2.dylib
0x91b9e000 - 0x91ba2fff libGIF.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x91ba4000 - 0x91bd5fff libRaw.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRaw.dylib
0x91bd9000 - 0x91c1cfff libTIFF.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
0x91c23000 - 0x91c3cfff libPng.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
0x91c41000 - 0x91c44fff libRadiance.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x91c46000 - 0x91c46fff com.apple.Accelerate 1.1.1 (Accelerate 1.1.1)	/System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
0x91c48000 - 0x91d1efff com.apple.vImage 2.0	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
0x91d26000 - 0x91d45fff com.apple.Accelerate.vecLib 3.1.1 (vecLib 3.1.1)	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
0x91db1000 - 0x91e16fff libvMisc.dylib 	/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
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0x927e1000 - 0x9286dfff com.apple.DesktopServices 1.3.1	/System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/DesktopServicesPriv
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0x92e1f000 - 0x92e79fff libGLU.dylib 	/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x92e97000 - 0x92e97fff com.apple.Carbon 10.4 (???)	/System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
0x92e99000 - 0x92eadfff com.apple.ImageCapture 3.0	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
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0x92ee1000 - 0x92ef6fff com.apple.securityhi 2.0 (203)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
0x92f08000 - 0x92f8ffff com.apple.ink.framework 101.2 (69)	/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework/Versions/A/Ink
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0x9458e000 - 0x945d2fff com.apple.securityinterface 2.1 (24981)	/System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface
0x945f6000 - 0x94605fff libCGATS.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x9460d000 - 0x94619fff libCSync.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x9465f000 - 0x94677fff libRIP.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
0x9467e000 - 0x94701fff libstdc++.6.dylib 	/usr/lib/libstdc++.6.dylib
0x94881000 - 0x949affff com.apple.AddressBook.framework 4.0.3 (483)	/System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook
0x94a41000 - 0x94a50fff com.apple.DSObjCWrappers.Framework 1.1	/System/Library/PrivateFrameworks/DSObjCWrappers.framework/Versions/A/DSObjCWrappers
0x94a58000 - 0x94a85fff com.apple.LDAPFramework 1.4.1 (69.0.1)	/System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
0x94a8c000 - 0x94a9cfff libsasl2.2.dylib 	/usr/lib/libsasl2.2.dylib
0x94aa0000 - 0x94acffff libssl.0.9.7.dylib 	/usr/lib/libssl.0.9.7.dylib
0x94adf000 - 0x94afcfff libresolv.9.dylib 	/usr/lib/libresolv.9.dylib
0x95cf6000 - 0x95d1ffff libxslt.1.dylib 	/usr/lib/libxslt.1.dylib
0x99c9b000 - 0x99cd1fff com.apple.Syndication 1.0.3 (49)	/System/Library/PrivateFrameworks/Syndication.framework/Versions/A/Syndication
0x99cee000 - 0x99d00fff com.apple.SyndicationUI 1.0.3 (49)	/System/Library/PrivateFrameworks/SyndicationUI.framework/Versions/A/SyndicationUI

Model: PowerBook5,5, BootROM 4.8.4f1, 1 processors, PowerPC G4  (1.1), 1.5 GHz, 1.5 GB
Graphics: ATI Mobility Radeon 9700, ATY,RV360M11, AGP, 64 MB
Memory Module: SODIMM0/J20STANDARD, 512 MB, DDR SDRAM, PC2700U-25330
Memory Module: SODIMM1/J23REVERSED, 1 GB, DDR SDRAM, PC2700U-25330
AirPort: AirPort Extreme, 404.2 (3.90.34.0.p16)
Modem: LastDash, UCJ, V.92, 4.0, APPLE VERSION 2.6.6
Bluetooth: Version 1.7.0f18, 2 service, 0 devices, 1 incoming serial ports
Network Service: Built-in Ethernet, Ethernet, en0
PCI Card: TXN,PCIXXXX-00, cardbus, PC Card
Parallel ATA Device: MATSHITADVD-R   UJ-825, 
Parallel ATA Device: Hitachi IC25N080ATMR04-0, 74.53 GB
USB Device: Bluetooth HCI, , Up to 12 Mb/sec, 500 mA

Comment 1 Darin Adler 2006-03-12 22:49:14 PST

This seems to mean that the owning renderer is gone for this subframe, but the load is continuing. I tried putting a call to m_frame->stopLoading() inside RenderPart::setFrame(), and that did not help a bit.

Maciej points out that the loading should probably be triggered on the DOM side rather than the render side anyway; that's something to fix in the future but may not be important to this bug.

Comment 2 Alice Liu 2006-03-16 18:07:57 PST

<rdar://problem/4481604>

Comment 3 Trey Matteson 2006-03-24 19:02:07 PST

I was taking a look at this one.  When we decide to render the fallback content, we detach the RenderPart.  It seems to me that the flaw here is that this causes us to disconnect the ownerRenderer of the frame.  I'm half-guessing that the ownerRenderer is supposed to be the renderer of the owner/parent.  If so, detaching the RenderPart doesn't change the frame's parent or its renderer, so why are we calling disconnectOwnerRenderer?

Symmetrically, it seems like the ownerRenderer->setFrame(this) in the Frame constructor would be wrong too.  Shouldn't the ownerRenderer's frame be the parent frame of the one being constructed?

If all this speculation is off the mark, perhaps it at least indicates some places where some commenting would have value.

Comment 4 Trey Matteson 2006-03-29 18:03:28 PST

The resolution of my confusion is that the ownerRenderer is the renderer of the *element* within the parent frame which hosts the child frame.

Comment 5 Trey Matteson 2006-03-29 19:13:20 PST

Created attachment 7380 [details]
propective patch, for discussion

I now get why darin tried calling frame.stopLoading(), but that is ineffective because most or all the places we stop loading now are driven from WebKit.  Calling stopLoading on the WebCore side doesn't inform WK, so it goes on ahead posting data to us later, at which point we hit the assert.

Taking the approach that WK is in charge, I tried the attached change, where we cancel the loading in WK at the point we ask for the fallback.  I'm not sure this is the best solution, but it does seem to fix the misbehavior.

Comment 6 David Kilzer (:ddkilzer) 2006-03-29 21:22:06 PST

Comment on attachment 7380 [details]
propective patch, for discussion

Poster wants the patch reviewed.

Comment 7 Trey Matteson 2006-03-29 22:19:24 PST

Actually this isn't ready for review, as I need to do more testing, and there is no change log.  I just attached that patch so I could discuss it with mjs easily on #webkit.  I will nominate a proper patch soon.

Comment 8 Trey Matteson 2006-03-30 13:08:58 PST

Created attachment 7400 [details]
oops, bogus patch, pls ignore

Comment 9 Trey Matteson 2006-03-30 13:18:22 PST

Created attachment 7402 [details]
proposed patch, for review

Comment 10 Trey Matteson 2006-03-30 13:31:13 PST

Created attachment 7403 [details]
additional patch for fixing Acid2 test case

I'm attaching an additional patch that fixes our local Acid2 test so that it would catch this bug.  In addition to the change in the patch, the Acid2 test files must be moved to the http test directory.

BTW, in case you find it more convenient, the only change to the tests is replacing "file://localhost/almost/certainly/nonexistent/file.html" with "/404-dir-should-not-exist/".

Alexey is familiar with this change and said he would land it.

Comment 11 Alexey Proskuryakov 2006-03-30 20:38:32 PST

Comment on attachment 7403 [details]
additional patch for fixing Acid2 test case

The change looks perfectly fine, but I cannot grant a formal review; reassigning the request to Maciej.

Comment 12 Maciej Stachowiak 2006-03-30 22:23:51 PST

Comment on attachment 7402 [details]
proposed patch, for review

r=me

Comment 13 Maciej Stachowiak 2006-03-30 22:25:06 PST

Comment on attachment 7403 [details]
additional patch for fixing Acid2 test case

I suggest we keep both copies just so we have a version of it in fast/css.

r=me otherwise