killed by: active assertions beyond permitted time: [Mixpanel applicationDidEnterBackground:] about mixpanel-iphone

[johnryan]

Any update on this? I'm seeing this issue as well. Thanks.

[samgreen]

@johnryan @leeliu I'm unable to reproduce this issue, are you still experiencing this? Once I'm able to reproduce this I'm sure that it will be a quick fix.

[ajstiles]

We are seeing this consistently right now. What info can I get you to help?

[samgreen]

Can you slim down your project to the smallest amount of code that reproduces the issue?

[samgreen]

Closing this issue, since we can't repro on our end and we don't have a sample project. Please open another issue if you're able to help us track this down.

[A2K]

I have a crash log from a user which seems to be caused by the same problem:

Application Specific Information:
<BKNewProcess: 0x157fa64d0; [app id was here] ; pid: 18964; hostpid: -1> has active assertions beyond permitted time: 
{(
    <BKProcessAssertion: 0x159027760> id: [long GUID was here] name: Called by Mixpanel, from -[Mixpanel applicationDidEnterBackground:] process: <BKNewProcess: 0x157fa64d0; [app id was here]; pid: 18964; hostpid: -1> permittedBackgroundDuration: 180.000000 reason: finishTask owner pid:18964 preventSuspend  preventIdleSleep  preventSuspendOnSleep 
)}

I could not reproduce it either, should I report if I receive more crash reports like this?

[ryanseams]

I wanted to add some additional context here, and see if we can add some information which can assist in resolving this issue.

To reproduce this, you will need to:

1. Open and close the app quickly a few times
2. Be using interstitials (specifically OtherLevels in this case, this is not a confirmed step but would be nice to know if the other users with this issue use these as well or not)

This issue seems to be isolated to the fact there is a variable called taskId with the library. When the application enters the background as detailed here, there is the potential for the taskId to be overwritten when the app is opened and closed quickly since it is dispatched to be processed on a serial queue in the background.

This information was provided by a customer.

Please see the full crash log below:

assertiond[64] <Warning>: <BKNewProcess: 0x1465b0dc0; com.***.general; pid: 61936; hostpid: -1> has active assertions beyond permitted time: 
{( 
<BKProcessAssertion: 0x14670b080> id: [long GUID was here] name: Called by ***, from -[Mixpanel applicationDidEnterBackground:] process: <BKNewProcess: 0x1465b0dc0; com.***.general; pid: 61936; hostpid: -1> permittedBackgroundDuration: 180.000000 reason: finishTask owner pid:61936 preventSuspend preventIdleSleep preventSuspendOnSleep , 
<BKProcessAssertion: 0x14660e530> id: [long GUID was here] name: Called by ***, from __40-[OLLocation geoFeedAPIWithToken:retry:]_block_invoke process: <BKNewProcess: 0x1465b0dc0; com.***.general; pid: 61936; hostpid: -1> permittedBackgroundDuration: 180.000000 reason: finishTask owner pid:61936 preventSuspend preventIdleSleep preventSuspendOnSleep , 
<BKProcessAssertion: 0x14781a210> id: [long GUID was here] name: Called by ***, from __40-[OLLocation geoFeedAPIWithToken:retry:]_block_invoke process: <BKNewProcess: 0x1465b0dc0; com.***.general; pid: 61936; hostpid: -1> permittedBackgroundDuration: 180.000000 reason: finishTask owner pid:61936 preventSuspend preventIdleSleep preventSuspendOnSleep 
)}

[patedit]

This should be solved in the last release