Thank you. I have read up on NSZombie et al and found a non-retained object that may have been the culprit, although it's too early to say definitely. I'll keep investigating...
Cheers On Thu, Dec 18, 2008 at 8:49 PM, Shawn Erickson <shaw...@gmail.com> wrote: > On Thu, Dec 18, 2008 at 11:45 AM, Shawn Erickson <shaw...@gmail.com> wrote: >> On Thu, Dec 18, 2008 at 11:33 AM, slasktrattena...@gmail.com >> <slasktrattena...@gmail.com> wrote: >>> Hi, >>> >>> my app keeps annoying me by crashing at launch every now and then. >>> What's weird about the backtrace is that it tells me I have called a >>> CLASS method named setFrame:. The class varies: in this case it says >>> NSClipView, sometimes is says NSAttributedString, or NSObject, or >>> whatever. Of course, I don't make any such calls explicitly, and most >>> of the time the app launches just fine. Any idea what the problem >>> could be, or how to locate it with gdb? I never learned using the >>> debugger properly. >> >> This is indicative of not correctly retaining an object (likely an >> object given to you that you then stick into an instance var without >> taking "ownership" of it) . As a result the object is deallocated out >> from under you (likely as a result of the currently auto release pool >> being drained) and then that slot in memory is randomly replaced with >> a different object instance likely of a totally unrelated class. >> >> You can use NSZombie to help isolate... >> >> http://developer.apple.com/technotes/tn2004/tn2124.html > > I should note it could also be because you are releasing an object > that you shouldn't be releasing. Normally an over release would fail > in a different way (crash in a future release message) but it is > possible to get what you are seeing because of an over release in > addition to an under release situation. > > If this is a GC using application then the issue will be different. > > -Shawn > _______________________________________________ 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
