Bug 6454 – Assertion failure in -[WebFrame(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:] when going back in Gmail

• Component: Page Loading
• Status: RESOLVED FIXED

I hit this assertion:

ASSERTION FAILED: ![_private previousItem] (WebKit/WebView.subproj/WebFrame.m:1447 -[WebFrame
(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:])

when doing the following:
1) Going to mail.google.com; I am already logged in so I reach my inbox
2) Clicking a message in the inbox to view it
3) Choosing History > Back

[Geoffrey Garen]

Previously in Radar as <rdar://problem/4401348> TOT REGRESSION: Assertion failure (![_private 
previousItem]) in -[WebFrame(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:] @ 
mail.google.com

The change in behavior here is that the redirects show up in the back/forward list at all. Previously, they 
didn't.

[Daniele Metilli]

Works for me with r13244.

*** Bug 7733 has been marked as a duplicate of this bug. ***

[David Kilzer (:ddkilzer)]

I also see the assertion off-and-on when clicking the "Back" button on my MS wireless mouse after viewing a mail message in Outlook Web Access from MS Exchange Server 2003.

Steps to reproduce:

1. Log into Outlook Web Access.
2. Click on a mail message to view it.
3. Click "back" button on mouse.  (May also happen with browser "Back" button.)
4. Repeat Steps 2 & 3 until the assertion occurs.  (It does NOT occur every time.)

Here is the assertion error message printed from a development (debug) build of WebKit r13607:

=================
ASSERTION FAILED: ![_private previousItem] (/Users/ddkilzer/Projects/Cocoa/WebKit/WebKit/WebView/WebFrame.m:1460 -[WebFrame(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:])
=================
Segmentation fault

Here is the problem report backtrace:

Date/Time:      2006-03-31 09:49:31.017 -0600
OS Version:     10.4.5 (Build 8H14)
Report Version: 4

Command: Safari
Path:    /Applications/Safari.app/Contents/MacOS/Safari
Parent:  bash [441]

Version:        2.0.3 (417.9.2)
Build Version:  2
Project Name:   WebBrowser
Source Version: 4170902

PID:    19629
Thread: 0

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

Thread 0 Crashed:
0   com.apple.WebKit         	0x00363a50 -[WebFrame(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:] + 596 (WebFrame.m:1460)
1   com.apple.WebKit         	0x00363d10 -[WebFrame(WebPrivate) _recursiveGoToItem:fromItem:withLoadType:] + 1300 (WebFrame.m:1474)
2   com.apple.WebKit         	0x00363f28 -[WebFrame(WebPrivate) _goToItem:withLoadType:] + 452 (WebFrame.m:1507)
3   com.apple.WebKit         	0x003aba0c -[WebView(WebPrivate) _goToItem:withLoadType:] + 172 (WebView.m:754)
4   com.apple.WebKit         	0x003b2ac4 -[WebView goBack] + 152 (WebView.m:1874)
5   com.apple.WebKit         	0x003b6248 -[WebView(WebIBActions) goBack:] + 68 (WebView.m:2426)
6   com.apple.AppKit         	0x9372e270 -[NSApplication sendAction:to:from:] + 108
7   com.apple.Safari         	0x00029b5c 0x1000 + 166748
8   com.apple.AppKit         	0x93788aa4 -[NSMenu performActionForItemAtIndex:] + 392
9   com.apple.AppKit         	0x93788828 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 104
10  com.apple.AppKit         	0x937882d0 -[NSMenu performKeyEquivalent:] + 272
11  com.apple.AppKit         	0x93787f1c -[NSApplication _handleKeyEquivalent:] + 328
12  com.apple.AppKit         	0x93691a28 -[NSApplication sendEvent:] + 2944
13  com.apple.Safari         	0x00021828 0x1000 + 133160
14  com.apple.AppKit         	0x93689330 -[NSApplication run] + 508
15  com.apple.AppKit         	0x93779e68 NSApplicationMain + 452
16  com.apple.Safari         	0x0005cbf0 0x1000 + 375792
17  com.apple.Safari         	0x0005ca94 0x1000 + 375444

Thread 1:
0   libSystem.B.dylib        	0x9000b1e8 mach_msg_trap + 8
1   libSystem.B.dylib        	0x9000b13c mach_msg + 60
2   com.apple.CoreFoundation 	0x9075d114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075ca18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x928f6384 -[NSRunLoop runMode:beforeDate:] + 172
5   com.apple.Foundation     	0x928f62bc -[NSRunLoop run] + 76
6   com.apple.WebKit         	0x003c4110 +[WebFileDatabase _syncLoop:] + 420 (WebFileDatabase.m:291)
7   com.apple.Foundation     	0x928e73b4 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 	0x9075d114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075ca18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x9290e8bc +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] + 264
5   com.apple.Foundation     	0x928e73b4 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 	0x9075d114 __CFRunLoopRun + 832
3   com.apple.CoreFoundation 	0x9075ca18 CFRunLoopRunSpecific + 268
4   com.apple.Foundation     	0x9290f9fc +[NSURLCache _diskCacheSyncLoop:] + 152
5   com.apple.Foundation     	0x928e73b4 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     	0x928ee520 -[NSConditionLock lockWhenCondition:] + 68
3   com.apple.Syndication    	0x998fa50c -[AsyncDB _run:] + 192
4   com.apple.Foundation     	0x928e73b4 forkThreadForFunction + 108
5   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 5:
0   libSystem.B.dylib        	0x9001f1ec select + 12
1   com.apple.CoreFoundation 	0x9076f9a8 __CFSocketManager + 472
2   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 6:
0   libSystem.B.dylib        	0x9002b888 semaphore_wait_signal_trap + 8
1   libSystem.B.dylib        	0x9002fffc pthread_cond_wait + 488
2   com.apple.Foundation     	0x928ee520 -[NSConditionLock lockWhenCondition:] + 68
3   com.apple.AppKit         	0x93729d2c -[NSUIHeartBeat _heartBeatThread:] + 324
4   com.apple.Foundation     	0x928e73b4 forkThreadForFunction + 108
5   libSystem.B.dylib        	0x9002b1e0 _pthread_body + 96

Thread 0 crashed with PPC Thread State 64:
  srr0: 0x0000000000363a50 srr1: 0x000000000000f030                        vrsave: 0x0000000000000000
    cr: 0x24000244          xer: 0x0000000000000005   lr: 0x0000000000363a44  ctr: 0x0000000090001310
    r0: 0x0000000000000000   r1: 0x00000000bfffdec0   r2: 0x00000000bbadbeef   r3: 0x00000000000000d8
    r4: 0x0000000000000000   r5: 0x00000000000000d8   r6: 0x00000000ffffffff   r7: 0x00000000000000d8
    r8: 0x0000000000000008   r9: 0x0000000000000000  r10: 0x00000000000000d8  r11: 0x00000000a000620c
   r12: 0x0000000090001310  r13: 0x0000000000000000  r14: 0x0000000000000000  r15: 0x0000000000000000
   r16: 0x0000000000000000  r17: 0x0000000000000000  r18: 0x0000000000000000  r19: 0x0000000000000000
   r20: 0x0000000000000000  r21: 0x0000000000000000  r22: 0x0000000000000000  r23: 0x0000000000000000
   r24: 0x0000000090a14f80  r25: 0x000000000e62a6c0  r26: 0x00000000160654c0  r27: 0x00000000a36bec44
   r28: 0x0000000090a1d850  r29: 0x0000000014d2bea0  r30: 0x00000000bfffdec0  r31: 0x0000000000363814

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0x94415000 - 0x94465fff libGLImage.dylib 	/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib
0x944f5000 - 0x9452dfff com.apple.vmutils 4.0.0 (85)	/System/Library/PrivateFrameworks/vmutils.framework/Versions/A/vmutils
0x94570000 - 0x9458cfff com.apple.securityfoundation 2.1 (24988)	/System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoundation
0x945a0000 - 0x945e4fff com.apple.securityinterface 2.1 (24981)	/System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInterface
0x94608000 - 0x94617fff libCGATS.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib
0x9461f000 - 0x9462bfff libCSync.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x94671000 - 0x94689fff libRIP.A.dylib 	/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
0x94690000 - 0x94713fff libstdc++.6.dylib 	/usr/lib/libstdc++.6.dylib
0x94893000 - 0x949c1fff com.apple.AddressBook.framework 4.0.3 (483)	/System/Library/Frameworks/AddressBook.framework/Versions/A/AddressBook
0x94a53000 - 0x94a62fff com.apple.DSObjCWrappers.Framework 1.1	/System/Library/PrivateFrameworks/DSObjCWrappers.framework/Versions/A/DSObjCWrappers
0x94a6a000 - 0x94a97fff com.apple.LDAPFramework 1.4.1 (69.0.1)	/System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
0x94a9e000 - 0x94aaefff libsasl2.2.dylib 	/usr/lib/libsasl2.2.dylib
0x94ab2000 - 0x94ae1fff libssl.0.9.7.dylib 	/usr/lib/libssl.0.9.7.dylib
0x94af1000 - 0x94b0efff libresolv.9.dylib 	/usr/lib/libresolv.9.dylib
0x95d08000 - 0x95d31fff libxslt.1.dylib 	/usr/lib/libxslt.1.dylib
0x96fff000 - 0x9701efff com.apple.vecLib 3.1.1 (vecLib 3.1.1)	/System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
0x97824000 - 0x97831fff com.apple.agl 2.5.6 (AGL-2.5.6)	/System/Library/Frameworks/AGL.framework/Versions/A/AGL
0x998f7000 - 0x9992dfff com.apple.Syndication 1.0.4 (51)	/System/Library/PrivateFrameworks/Syndication.framework/Versions/A/Syndication
0x9994a000 - 0x9995cfff com.apple.SyndicationUI 1.0.4 (51)	/System/Library/PrivateFrameworks/SyndicationUI.framework/Versions/A/SyndicationUI

Model: PowerBook5,4, BootROM 4.8.6f0, 1 processors, PowerPC G4  (1.1), 1.5 GHz, 1 GB
Graphics: ATI Mobility Radeon 9700, ATY,RV360M11, AGP, 128 MB
Memory Module: SODIMM1/J25UPPER, 1 GB, DDR SDRAM, PC2700U-25330
AirPort: AirPort Extreme, 404.2 (3.90.34.0.p16)
Modem: Jump, , V.92, Version 1.0, 
Bluetooth: Version 1.7.0f18, 2 service, 0 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
PCI Card: TXN,PCIXXXX-00, cardbus, PC Card
Parallel ATA Device: MATSHITADVD-R   UJ-825, 
Parallel ATA Device: Hitachi HTS548080M9AT00, 74.53 GB
USB Device: Hub, , Up to 480 Mb/sec, 500 mA
USB Device: Microsoft Wireless Optical Desktop® 2.10, Microsoft, Up to 1.5 Mb/sec, 500 mA
USB Device: Apple Cinema HD Display, , Up to 1.5 Mb/sec, 500 mA
USB Device: Bluetooth HCI, , Up to 12 Mb/sec, 500 mA
FireWire Device: iSight, Apple Computer, Inc., Up to 400 Mb/sec
FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec

[David Kilzer (:ddkilzer)]

This isn't exclusive to GMail, so I'm not adding the GoogleBug keyword.

[Alexey Proskuryakov]

*** Bug 11327 has been marked as a duplicate of this bug. ***

Created attachment 11135 [details]
Reduction

Created attachment 11146 [details]
Reduction

This is simpler

Created attachment 11176 [details]
Reduction

Simpler

*** Bug 12645 has been marked as a duplicate of this bug. ***

Also <rdar://problem/4900071>

Created attachment 13165 [details]
checkLoadComplete for ancestor frames to reset their m_previousHistoryItem

Addresses a FIXME added in r11819

(In reply to comment #12)
> Addresses a FIXME added in r11819

Actually added as a comment in r11819 and changed into a FIXME later.

[Brady Eidson]

Comment on attachment 13165 [details]
checkLoadComplete for ancestor frames to reset their m_previousHistoryItem

r-me

[Brady Eidson]

of course I meant r=me

[Brady Eidson]

Comment on attachment 13165 [details]
checkLoadComplete for ancestor frames to reset their m_previousHistoryItem

Actually...  I just tried this patch and it didn't work...!

[Brady Eidson]

So in your reduction, it seems we never actually hit the "isLoadingFromPageCache()" case.  I think we need to split off part of the BF list management into a seperate method here, to distinguish between the back forward LIST and the back forward CACHE - we still have to keep the list consistent with what we'd expect

[Matt Lilek]

*** Bug 12847 has been marked as a duplicate of this bug. ***

*** Bug 12932 has been marked as a duplicate of this bug. ***

[Anders Carlsson]

Committed revision 20132.