Bug 18312 - iOS sample getting crashed after clicking on button 'Start a long running task'
Summary: iOS sample getting crashed after clicking on button 'Start a long running task'
Alias: None
Product: iOS
Classification: Xamarin
Component: Samples ()
Version: 7.0.7
Hardware: PC Mac OS
: Normal normal
Target Milestone: Untriaged
Assignee: GouriKumari
Depends on:
Reported: 2014-03-12 04:21 UTC by narayanp
Modified: 2014-03-14 00:23 UTC (History)
4 users (show)

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

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Description narayanp 2014-03-12 04:21:39 UTC
Steps to reproduce:
1. Open iOS sample 'Background Execution'.
2. Debug or Run the application.
3. Click on button 'Start a long running task'.

Actual result: Application getting crashed after clicking on button 'Start a long running task' on iPhone 5 physical device only. However, other than this device, application working fine

Expected Result: User should able to run another application in background after clicking on button 'Start a long running task'.

Supplement info:
iOS device log: https://gist.github.com/atin360/72201fa1e4cf1f5b9268

All Mac
X.S 4.2.4(build 30)
Mono 3.2.7
X.iOS 7.0.7

Device info:
iPhone 5 version 6.0.2

Regression Status:
NOT A REGRESSION: Same behavior happening with stable X.iOS
Comment 1 Danish Akhtar 2014-03-12 07:03:59 UTC
An update to the above issue:

We are getting same behavior for all iOS application or templates which have button, application gets crashed after clicking on Button. We are getting this issue only on iPhone 5 device.
Comment 2 Sebastien Pouliot 2014-03-13 16:24:36 UTC
@narayanp what version did you use ?

X.iOS 7.0.7
NOT A REGRESSION: Same behavior happening with stable X.iOS

^ that makes me think you used something more recent than

When such things happens (even more if it's device specific) please attach a symbolicated crash report (not just the device log which shows almost nothing for such cases).
Comment 3 Sebastien Pouliot 2014-03-13 16:30:21 UTC
FWIW I can't reproduce it with a iPhone 5S running iOS 7.0.6.

@Danish if you have a test case please attach it to this bug report (both sources and the crash report you get). ALso specify the versions you use, both Xamarin software* and the iOS version of the devices.

* The easiest way to get exact version information is to use the "Xamarin Studio" menu, "About Xamarin Studio" item, "Show Details" button and copy/paste the version informations (you can use the "Copy Information" button).
Comment 4 narayanp 2014-03-14 00:23:20 UTC
This issue was reported with X.iOS and application getting crashed after clicking on button only on physical device iPhone5. This is Symbolicate Log: https://gist.github.com/saurabh360/bac7e922fb183f84d407
Application was working fine on all other devices except iPhone5

I have checked it with new build X.iOS Now it is working fine on iPhone 5. We are successfully able to click on button.

So I am closing this issue w.r.t X.iOS