That's a good trick to know! When I bracket the calls thus, it crashes in a different but similar place:
#00x95a82688 in objc_msgSend #10x90894910 in processColor #20x9089395b in CharAttr #30x9088db34 in -[NSRTFReader attributedString] #40x9070bc03 in _NSReadAttributedStringFromURLOrData #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] #70x908e6f25 in +[_NSRTFPboardTypeConverter pasteboard:provideDataForType:] #80x908e6b58 in __NSPasteboardProvideData #90x918dd120 in __CFPasteboardResolvePromiseForItemLocal #100x918e0680 in CFPasteboardCopyData #110x9086763e in -[NSPasteboard _dataWithoutConversionForType:] #120x9086748a in -[NSPasteboard dataForType:] And then if I bracket the call to dataForType: as well, the crashes stop happening. I'm relieved to know I at least have a workaround. Does this tend to indicate some kind of Apple GC bug? ________________________________ From: Ali Ozer <ao...@apple.com> To: Chris Idou <idou...@yahoo.com> Cc: Cocoa Dev <cocoa-dev@lists.apple.com> Sent: Tuesday, 31 March, 2009 4:12:55 PM Subject: Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy Can you try temporarily disabling garbage collection around the unarchiving of RTFD, and see if it helps? [[NSGarbageCollector defaultCollector] disable]; ... unarchive your RTFD ... [[NSGarbageCollector defaultCollector] enable]; Ali On Mar 30, 2009, at 5:25 PM, Chris Idou wrote: > I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the > pasteboard and I'm storing them in a core data XML repository and getting > them out again, and when necessary I'm converting them into > NSAttributedString with initWithRTF or initWithRTFD. This mostly works but > every now and then, actually quite often, this initWithRTF(D) crashes with > EXC_BAD_ACCESS. (stack traces below). > > The thing is, I'm doing an md5Hash on the NSData objects every single time I > store them and retrieve them just to make sure they are not corrupted, and > the exact same NSData that is working one minute as an argument to > initWithRTF(D), makes it crash later on. > > I'm using garbage collection, but I've solved a lot of GC problems and this > doesn't seem similar. > > Has anyone got any thoughts? > > > > > #00x95a82688 in objc_msgSend > #10x933b0b26 in -[NSCFDictionary setObject:forKey:] > #20x90824684 in -[NSRTFD setObject:forKey:] > #30x908f3c2f in -[NSAKDeserializer deserializePList:] > #40x908f3961 in -[NSDocumentDeserializer deserializeNewPList] > #50x908f3753 in -[NSRTFD(NSSerializationSupport) > initWithPasteboardDataRepresentation:] > #60x908f2fe9 in -[NSFileWrapper initWithSerializedRepresentation:] > #70x908f2e32 in -[NSRTFReader initWithRTFD:] > #80x9070b9a7 in _NSReadAttributedStringFromURLOrData > #90x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) > initWithData:options:documentAttributes:error:] > #100x908f2de2 in -[NSAttributedString(NSAttributedStringKitAdditions) > initWithRTFD:documentAttributes:] > ...... > > #00x95a82688 in objc_msgSend > #10x90894910 in processColor > #20x9089395b in CharAttr > #30x9088db34 in -[NSRTFReader attributedString] > #40x9070bc03 in _NSReadAttributedStringFromURLOrData > #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) > initWithData:options:documentAttributes:error:] > #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) > initWithRTF:documentAttributes:] > ..... > > > Program received signal: “EXC_BAD_ACCESS”. > > > > Enjoy a better web experience. Upgrade to the new Internet Explorer 8 > optimised for Yahoo!7. Get it now. > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/aozer%40apple.com > > This email sent to ao...@apple.com Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
