Bug 2889 - Monocatalog sample app crashes when running in simulator through MonoDevelop in Address Book
Summary: Monocatalog sample app crashes when running in simulator through MonoDevelop ...
Status: CLOSED FIXED
Alias: None
Product: iOS
Classification: Xamarin
Component: XI runtime ()
Version: 5.0
Hardware: Macintosh Mac OS
: Normal minor
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2012-01-13 11:50 UTC by lindsey.driscoll
Modified: 2012-01-13 16:28 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:


Attachments
Stacktrace (2.96 KB, text/plain)
2012-01-13 11:50 UTC, lindsey.driscoll
Details


Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.


Please create a new report on Developer Community or GitHub with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:
Status:
CLOSED FIXED

Description lindsey.driscoll 2012-01-13 11:50:00 UTC
Created attachment 1187 [details]
Stacktrace

Getting an SIGSEGV when executing the Monocatalog sample application

Screencast: http://screencast.com/t/4OvFTbMKs


Steps to reproduce:

1. Open the monocatalog sample app in MD
2. Run the application in the iPhone simulator through MD
3. Select the Address Book item
4. Click on the 'Select Contact' button
5. Click the 'Cancel' button


Actual Result:

Application crashes and get SIGSEGV (see attachment)


Expected Result:

User clicks cancel button and the view drops down to show the Select Contact view


Things to Note:

1. Once the application is deployed to the simulator...you can run it successfully in the simulator without it crashing (do not run from MD)
2. chrisntr said it was a GC and that the fix is to remove the using block around the ABPeoplePickerNavigationController object in the showPicker method in AddressBookController.xib.cs


Environment:

Macosx Lion
MonoDevelop: 2.8.6
MonoTouch: 5.1.2
Mono: 2.10.8
Comment 1 Sebastien Pouliot 2012-01-13 14:31:11 UTC
Chris was right. The 'using' block will call Dispose before the Cancelled event is executed - which means the controller will be collected/freed when it's still needed.

sample fixed in d51e298b269e90fe0ec2470acb57788f2e2719e9
Comment 2 lindsey.driscoll 2012-01-13 16:28:20 UTC
Verified fix...closing bug