I really appreciate that you've tried to help! Just to clearify things, I can get the app to crash in the simulator too, if I compile the app in release mode. I actually looked alot at Xamarin's example add EmployerDirectory and I can't see whats differs my app from theirs when it comes to how I perform a search and how I handle my UITableViewController / UISearchDisplayController.
2013/8/1 Nic Wise <n...@fastchicken.co.nz> > I suggest you try to distill it down to a small sample, and put a bug > up on the Xamarin bugzilla site (bugzilla.xamarin.com). > > Very odd tho. Maybe also have a look at MonoTouch.Dialog which has a > search box, but doesn't crash.... > > Crashing on device vrs sim isn't uncommon tho - the sim is a proper > JIT machine, same/similar as the desktop framework, and the GC isn't > overly aggressive. Once you get it on the device, it's AOT, and the GC > gets a lot more aggressive about releasing things. > > I've CCed in Rolf and Sebastien as they may have[*] better ideas > > [*]: "may have" -> are very likely to have. > > On 1 August 2013 10:20, Nordis <nordmark.dan...@gmail.com> wrote: > > Same problem if I remove that code, > > https://gist.github.com/Nordis/6129762 > > > > I was able to reproduce the crash a lot quicker when I removed the code, > > usually the crash occurs after 1-2 minutes. But with no code att all in > > Dispose the crash occured after a few seconds. > > > > Also the crash only seems to happens when I compile in release mode. > > > > > > 2013/8/1 Nic Wise [via MonoTouch] <[hidden email]> > >> > >> That SO question is from 2011, and the GC and other things have > >> changed hugely since then, esp in 6.4 (the latest one) which is Mono > >> 3.x as well as having a new GC by default > >> > >> So you may not even need to do that. What happens if you take it out > >> completely? > >> > >> Rolf is often around here, so he may be able to expand on it a bit. > >> > >> On 1 August 2013 09:53, Nordis <[hidden email]> wrote: > >> > >> > Thanks for your quick reply, > >> > > >> > I've tried to change BeginInvokeOnMainThread to InvokeOnMainThread, > but > >> > still the same problem. The crash dump looks the same to me, > >> > https://gist.github.com/Nordis/6129637 > >> > > >> > Then I tried to remove InvokeOnMainThread and only set the properties > to > >> > null, > >> > searchController.Delegate = null; > >> > searchController.SearchResultsDelegate = null; > >> > searchController.SearchResultsSource = null; > >> > > >> > But then I got this exception, > >> > MonoTouch.UIKit.UIKitThreadAccessException: UIKit Consistency error: > you > >> > are > >> > calling a UIKit method that can only be invoked from the UI thread. > >> > at MonoTouch.UIKit.UIApplication.EnsureUIThread () [0x00000] in > >> > <filename > >> > unknown>:0 > >> > at MonoTouch.UIKit.UISearchDisplayController.set_WeakDelegate > >> > (MonoTouch.Foundation.NSObject value) [0x00000] in <filename > unknown>:0 > >> > at MonoTouch.UIKit.UISearchDisplayController.set_Delegate > >> > (MonoTouch.UIKit.UISearchDisplayDelegate value) [0x00000] in <filename > >> > unknown>:0 > >> > at Diet52App.FoodSearchBase.Dispose (Boolean disposing) [0x00000] in > >> > <filename unknown>:0 > >> > at MonoTouch.Foundation.NSObject.Finalize () [0x00000] in <filename > >> > unknown>:0 > >> > > >> > I got the idea to set searchController's properties to null by reading > >> > this > >> > thread, > >> > > >> > > http://stackoverflow.com/questions/6708705/monotouch-sigsegv-crash-using-navigationcontroller-and-searchdisplaycontroller?rq=1 > >> > > >> > Best regards, > >> > > >> > Daniel > >> > > >> > > >> > 2013/8/1 Nic Wise [via MonoTouch] <[hidden email]> > >> >> > >> >> Hi Nordis > >> >> > >> >> If I had to guess, I'd say this is the problem > >> >> > >> >> protected override void Dispose (bool disposing) > >> >> { > >> >> // Hopefully fixes SIGSEGV error > >> >> // > >> >> > >> >> > http://stackoverflow.com/questions/6708705/monotouch-sigsegv-crash-using-navigationcontroller-and-searchdisplaycontroller?rq=1 > >> >> BeginInvokeOnMainThread (() => { > >> > >> >> searchController.Delegate = null; > >> >> searchController.SearchResultsDelegate = null; > >> >> searchController.SearchResultsSource = null; > >> >> }); > >> >> base.Dispose (disposing); > >> >> } > >> >> > >> >> > >> >> BeginInvokeOnMainThread will call it and return immediately - so your > >> >> searchController may have been disposed of by the time the background > >> >> thread runs. > >> >> > >> >> try changing it to either not use the call at all, or use > >> >> InvokeOnMainThread, which waits for the code to execute before > >> >> continuing. > >> >> > >> >> > >> >> "Unlike NSObject.BeginInvokeOnMainThread(NSAction) this method waits > >> >> for the main thread to execute the method, and does not return until > >> >> the code pointed by action has completed running." > >> >> > >> >> > >> >> > >> >> > >> >> On 1 August 2013 09:16, Nordis <[hidden email]> wrote: > >> >> > >> >> > I'm having problem to find the cause of random crashes in my app. > The > >> >> > crashes > >> >> > only occurs when I build in release mode and run on a device like > >> >> > iPhone > >> >> > or > >> >> > iPad. Running in debug on simulator no crashes occurs. My guess is > >> >> > that > >> >> > the > >> >> > problem has something to do with these two lines in the crash log, > >> >> > > >> >> > 6 UIKit 0x34a193d0 > >> >> > -[UISearchDisplayController > >> >> > _destroyManagedTableView] + 68 > >> >> > 7 UIKit 0x34a2195a > >> >> > -[UISearchDisplayController > >> >> > dealloc] + 94 > >> >> > I've uploaded the source code of my UITableViewController and the > >> >> > full > >> >> > crash > >> >> > log here, https://gist.github.com/Nordis/6128735 > >> >> > > >> >> > All help to track the cause of the crashes is much appreciated! > >> >> > > >> >> > > >> >> > > >> >> > -- > >> >> > View this message in context: > >> >> > > >> >> > > http://monotouch.2284126.n4.nabble.com/Crash-related-to-UITableViewController-UISearchDisplayController-in-MonoTouch-Xamarin-iOS-tp4658405.html > >> >> > Sent from the MonoTouch mailing list archive at Nabble.com. > >> >> > _______________________________________________ > >> >> > MonoTouch mailing list > >> >> > [hidden email] > >> >> > http://lists.ximian.com/mailman/listinfo/monotouch > >> >> > >> >> > >> >> > >> >> -- > >> >> Nic Wise > >> >> t. <a href="tel:%2B44%207788%20592%20806" value="<a > >> >> href="tel:%2B447788592806" value="+447788592806" > >> >> target="_blank">+447788592806" > >> >> target="_blank"><a href="tel:%2B44%207788%20592%20806" > >> >> value="+447788592806" target="_blank">+44 7788 592 806 | > @fastchicken > >> >> b. http://www.fastchicken.co.nz/ > >> > >> >> _______________________________________________ > >> >> MonoTouch mailing list > >> >> [hidden email] > >> >> http://lists.ximian.com/mailman/listinfo/monotouch > >> >> > >> >> > >> >> ________________________________ > >> >> If you reply to this email, your message will be added to the > >> >> discussion > >> >> below: > >> >> > >> >> > >> >> > http://monotouch.2284126.n4.nabble.com/Crash-related-to-UITableViewController-UISearchDisplayController-in-MonoTouch-Xamarin-iOS-tp4658405p4658406.html > >> >> To unsubscribe from Crash related to UITableViewController / > >> >> UISearchDisplayController in MonoTouch/Xamarin.iOS, click here. > >> >> NAML > >> > > >> > > >> > > >> > ________________________________ > >> > View this message in context: Re: Crash related to > UITableViewController > >> > / > >> > UISearchDisplayController in MonoTouch/Xamarin.iOS > >> > > >> > Sent from the MonoTouch mailing list archive at Nabble.com. > >> > > >> > _______________________________________________ > >> > MonoTouch mailing list > >> > [hidden email] > >> > http://lists.ximian.com/mailman/listinfo/monotouch > >> > > >> > >> > >> > >> -- > >> Nic Wise > >> t. <a href="tel:%2B44%207788%20592%20806" value="+447788592806" > >> target="_blank">+44 7788 592 806 | @fastchicken > >> b. http://www.fastchicken.co.nz/ > >> _______________________________________________ > >> MonoTouch mailing list > >> [hidden email] > >> http://lists.ximian.com/mailman/listinfo/monotouch > >> > >> > >> ________________________________ > >> If you reply to this email, your message will be added to the discussion > >> below: > >> > >> > http://monotouch.2284126.n4.nabble.com/Crash-related-to-UITableViewController-UISearchDisplayController-in-MonoTouch-Xamarin-iOS-tp4658405p4658408.html > >> To unsubscribe from Crash related to UITableViewController / > >> UISearchDisplayController in MonoTouch/Xamarin.iOS, click here. > >> NAML > > > > > > > > ________________________________ > > View this message in context: Re: Crash related to UITableViewController > / > > UISearchDisplayController in MonoTouch/Xamarin.iOS > > Sent from the MonoTouch mailing list archive at Nabble.com. > > > > _______________________________________________ > > MonoTouch mailing list > > MonoTouch@lists.ximian.com > > http://lists.ximian.com/mailman/listinfo/monotouch > > > > > > -- > Nic Wise > t. +44 7788 592 806 | @fastchicken > b. http://www.fastchicken.co.nz/ >
_______________________________________________ MonoTouch mailing list MonoTouch@lists.ximian.com http://lists.ximian.com/mailman/listinfo/monotouch
