Spot on, Steven. My memory management was faulty. My object had been instantiating another object via alloc that it kept a reference to in an iVar, and my (outer) object released that instantiated (inner) object in its -dealloc method. I refactored the code, and changed the way I acquire the (inner) object to use a class factory method, which returned an autoreleased instance. Of course, with this change, the reference to the (inner) object should no longer be held by an iVar, and so I have now changed that as well.
On Mar 13, 2010, at 4:46 PM, Steven Degutis wrote: > This is almost always caused by releasing an object earlier than you expected > to, and then trying to release it again later (similar to "double free"). > Look around in your class's code for a place where you autorelease an ivar, > but don't add it to a collection, or where you release an ivar but don't set > it to nil afterwards. > > -Steven > > On Sat, Mar 13, 2010 at 12:53 PM, Stuart Malin <stu...@zhameesha.com> wrote: > I have some code that is throwing EXC_BAD_ACCESS. It does so when an object > is deallocating, in its -dealloc method on a call to [super dealloc]. The > object's class's superclass is NSObject. Here's the (relevant part of the) > stack trace: > > #0 0x7fff872e016d in _class_hasCxxStructorsNoSuper > #1 0x7fff872e0741 in object_cxxDestructFromClass > #2 0x7fff872e60f8 in objc_destructInstance > #3 0x7fff872e06f5 in _internal_object_dispose > #4 0x7fff83e0279a in -[NSObject(NSObject) dealloc] > #5 0x10007b18e in -[ZPOauthParams dealloc] at ZPOauthParams.m:57 > > I know I must have blown something, but I have no idea what I could have done > to cause this sort of problem. If anyone has seen something like this before, > please let me in what direction I should look for the problem. TIA. > _______________________________________________ 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
