It seems that the deallocation happens when a block is being deallocated. Is it possible that a block ran on the main queue of an NSOperationQueue could be deallocated in another thread?
-Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com On Jan 23, 2012, at 13:49, Laurent Daudelin wrote: > Hello Luke. > > Well, I already checked that. The cell is being deallocated from a secondary > thread but there is nothing in the thread that indicates what triggered it. > It looks like a performSelector:withObject:afterDelay: or something like it > but we don't have any of those in the table view controller that controls the > table view. Like I said in my original message, I've looked for any flavor of > UITableView reload… and the only calls we have are reloadData but they are > all executed on the main thread using [[NSOperationQueue] mainQueue] > addOperationWithBlock: so I'm stumped as to where this deallocation is > triggered. I've checked all the other running threads and I can't find any > code that you reload the table view which could cause its cells to be > deallocated. > > -Laurent. > -- > Laurent Daudelin > AIM/iChat/Skype:LaurentDaudelin > http://www.nemesys-soft.com/ > Logiciels Nemesys Software > laur...@nemesys-soft.com > > On Jan 23, 2012, at 13:38, Luke Hiesterman wrote: > >> Think about it simply. A cell gets deallocated just like any other object - >> when its retain count goes to zero. If you're looking for a cell getting >> deallocated on a non-main thread, you're looking for a place release is >> being called on a non-main thread. I would think you could just override the >> dealloc method to help you track this situation in the debugger. Perhaps add >> an NSAssert([NSThread isMainThread], @"wups"); in there. >> >> Luke >> >> On Jan 23, 2012, at 11:38 AM, Laurent Daudelin wrote: >> >>> Hello. >>> >>> I'm trying to track a crash in our app where we have a custom UITableView >>> cell that contains a UITextView because we need the ability to display and >>> open links that might be in the text we're displaying in the text view. >>> >>> The problem is that somehow, the cell is deallocated and WebKit complains >>> that it's been unable to obtain the web lock from a thread other than the >>> main thread or the web thread when it's deallocated. I have reviewed the >>> code and checked all the "reload…" message we might send to the table view >>> that could cause the deallocation of its cells but all of those calls are >>> executed from the main thread using [[NSOperationQueue mainQueue] >>> addOperationWithBlock:^{…}] so I'm stumped. Are there any other situations >>> where UITableView cells would be deallocated? The view displays and the >>> view isn't unloaded due to memory warning or any other situation. >>> >>> -Laurent. >>> -- >>> Laurent Daudelin >>> AIM/iChat/Skype:LaurentDaudelin >>> http://www.nemesys-soft.com/ >>> Logiciels Nemesys Software >>> laur...@nemesys-soft.com >>> >>> >>> _______________________________________________ >>> >>> 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: >>> https://lists.apple.com/mailman/options/cocoa-dev/luketheh%40apple.com >>> >>> This email sent to luket...@apple.com >> > _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
