Leopard crash in standard open and save panel

FROM : John Nairn
DATE : Fri Nov 30 22:34:29 2007

Since upgrading to Leopard , I have noticed frequent crashes after 
entering a standard Cocoa open or save panel. It even happens in 
openDocument: command linked to Open... menu command that is built 
into NSApplication and I have not overridden that method. This same 
code has worked fine ever since 10.0. It seems worse building to 
"Current Mac OS" than to "10.4 (Universal)", but now I am seeing if in 
both bulds

For example, this method (a target of a menu command) just crashed

// save graphics to PDF file
- (IBAction)saveGraphics:(id)sender
{
    NSSavePanel *pan = [NSSavePanel savePanel];
    [pan setRequiredFileType:[self graphicsExtension]];
    [pan setTitle:@"Save Graphics"];
    [pan beginSheetForDirectory:nil file:nil
        modalForWindow:[self window] modalDelegate:self
         
didEndSelector:@selector(savePanelDidEnd:returnCode:contextInfo:)
        contextInfo:nil];
}

The sheet opens, but then crashes before I can interact with it. Part 
of crash log is below (full log is too long for this list)

Process:        NairnFEAMPM [288]
Path:            /Users/jnairn/Programming/Cocoa_Projects/NairnFEAMPM/
build/Default/NairnFEAMPM.app/Contents/MacOS/NairnFEAMPM
Identifier:      com.geditcom.NairnFEAMPM
Version:        Version 1.6 (build 1)
Code Type:      X86 (Native)
Parent Process:  launchd [94]

Date/Time:      2007-11-29 12:34:58.467 -0800
OS Version:      Mac OS X 10.5.1 (9B18)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000c5ff271f
Crashed Thread:  0

Thread 0 Crashed:
0  libobjc.A.dylib                   0x965126e8 objc_msgSend + 24
1  com.apple.AppKit                 0x91de4834 -[NSTextStorage 
fontSetChanged] + 363
2  com.apple.CoreFoundation         0x96b97da5 -[NSArray 
makeObjectsPerformSelector:] + 565
3  com.apple.AppKit                 0x91de4661 +[NSTextStorage 
_fontSetChanged:] + 228
4  com.apple.Foundation             0x918ad77c _nsnote_callback + 364
5  com.apple.CoreFoundation         0x96b0aa4a __CFXNotificationPost + 
362
6  com.apple.CoreFoundation         0x96b0ad23 
_CFXNotificationPostNotification + 179
7  com.apple.Foundation             0x918aaa70 -[NSNotificationCenter 
postNotificationName:object:userInfo:] + 128
8  com.apple.Foundation             0x918b4108 -[NSNotificationCenter 
postNotificationName:object:] + 56
9  com.apple.AppKit                 0x92009e29 +[NSFont 
_postFontSetChangedNotifications] + 75
10  com.apple.Foundation             0x918aec43 __NSThreadPerformPerform 
+ 547
11  com.apple.CoreFoundation         0x96b29698 CFRunLoopRunSpecific + 
3240
12  com.apple.CoreFoundation         0x96b29d38 CFRunLoopRunInMode + 88
13  com.apple.HIToolbox               0x9003b8a4 
RunCurrentEventLoopInMode + 283
14  com.apple.HIToolbox               0x9003b5f6 ReceiveNextEventCommon + 
175
15  com.apple.HIToolbox               0x9003b531 
BlockUntilNextEventMatchingListInMode + 106
16  com.apple.AppKit                 0x91bacd5b _DPSNextEvent + 657
17  com.apple.AppKit                 0x91bac6a0 -[NSApplication 
nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
18  com.apple.AppKit                 0x91ba56d1 -[NSApplication run] + 795
19  com.apple.AppKit                 0x91b729ba NSApplicationMain + 574
20  com.geditcom.NairnFEAMPM         0x000023c6 _start + 216
21  com.geditcom.NairnFEAMPM         0x000022ed start + 41

---------------
John Nairn (1-541-737-4265, FAX:1-541-737-3385)
Professor and Richardson Chair
Web Page: http://woodscience.oregonstate.edu/faculty/Nairn
FEA/MPM Web Page: http://oregonstate.edu/~nairnj