Re: Leopard crash in standard open and save panel

FROM : David Arve
DATE : Sat Dec 01 16:29:47 2007

Sorry for the typo. It should be a release message in the 
savePanelDidEnd method.

/David

On 1 dec 2007, at 16.24, David Arve wrote:

> Hi,
>
> What happens is that the panel is added to the autoreleasepool and 
> hence released after a release cycle. What you want to do is to add 
> a [pan retain] in your saveGraphics method and a retain message in 
> your savePanelDidEnd method. I think.
>
> /David
>
> On 30 nov 2007, at 22.34, John Nairn wrote:
>

>> 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
>>
>>
>>
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