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From "Shazron Abdullah (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-2301) EXC_BAD_ACCESS on resume/wake on iOS device
Date Thu, 31 Jan 2013 10:51:14 GMT

    [ https://issues.apache.org/jira/browse/CB-2301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13567531#comment-13567531
] 

Shazron Abdullah commented on CB-2301:
--------------------------------------

Ah I see where the crash might happen now -- when the app is backgrounded/locked, it does
a backup of your localStorage, this call is async but I don't think this is where the crash
happens. I'm thinking it happens on restore somehow: https://github.com/apache/cordova-ios/blob/2ba2b39339336e274dd8583f260ff0d85e8e48b2/CordovaLib/Classes/CDVLocalStorage.m#L419

At least with your new information we can build a test-case to perhaps repro it: 
1. Set your config.xml BackupWebStorage project setting to the default ('cloud').
2. Read and/or write to localStorage on the resume event (http://docs.phonegap.com/en/2.3.0/cordova_events_events.md.html#resume,
see iOS Quirks)

                
> EXC_BAD_ACCESS on resume/wake on iOS device
> -------------------------------------------
>
>                 Key: CB-2301
>                 URL: https://issues.apache.org/jira/browse/CB-2301
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 2.2.0
>         Environment: iPhone 5 running iOS 6.0.2 and Phonegap 2.2.0. (Xcode 4.5.2 on Mountain
Lion)
>            Reporter: Ross Holdway
>            Assignee: Shazron Abdullah
>            Priority: Critical
>              Labels: cordova, ios, phonegap
>
> I have implemented a websocket connection (using socket.io) within my app which it uses
to communicate with the server. On locking and waking the device, it disconnects and reconnects
correctly, but on leaving the device locked for 1 minute or longer when unlocking, the application
will crash sometimes instantly, or sometimes after reconnecting with the server.
> If I do the same, but run my app within mobile Safari, it does not crash, leading me
to believe this is an issue with Phonegap/Cordova. 
> On app crash, within Xcode I get within WebThread - WebCore::ThreadTImers::sharedTimerFiredInternal()
an EXC_BAD_ACCESS (code=1) error
> Screenshot of crash state in Xcode -http://pictat.com/i/2013/1/28/24904screenshot.jpg
> Hopefully someone will have an idea as to what could be causing this, or recommend some
tests for me to run etc because I'm really clueless on how to proceed with fixing this!
> Many Thanks,
> Ross

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