Child Item

DBDatastoreManager updateBackgroundTask crash

I had the following crash on a device. Should I be worrying?

Exception Type:  00000020
Exception Codes: 0x000000008badf00d
Highlighted Thread:  5

Application Specific Information:
<BKNewProcess: 0x176971e0; com.bronze.ubibase2; pid: 9735; hostpid: -1> has active assertions beyond permitted time: 
{(
    <BKProcessAssertion: 0x1758a0f0> id: 9735-0168FB30-901C-4F77-93B7-3B590192CF1A name: Called by App, from -[DBDatastoreManager updateBackgroundTask] process: <BKNewProcess: 0x176971e0; com.test.app; pid: 9735; hostpid: -1> permittedBackgroundDuration: 180.000000 reason: finishTask owner pid:9735 preventSuspend  preventIdleSleep  preventSuspendOnSleep 
)}

Elapsed total CPU time (seconds): 85.970 (user 85.970, system 0.000), 24% CPU 
Elapsed application CPU time (seconds): 0.043, 0% CPU

Find more posts tagged with

API

Abuse

Comments

Greg-DB

Thanks for the report. Are you able to reproduce this?

Caram

Not specifically but there were 2 other occurrences this morning on the same device. I noticed in the log other apps occasionally get the same issue on the same device.

Greg-DB

Thanks. To clarify though, do you mean other apps that do or don't use the Dropbox Sync/Datastore SDK? The SDK does use the iOS background task API to do some syncing in the background when necessary, and I believe this exception means it ran out of limited time the OS allows for this. I'm not sure offhand if there's something additional we need to do handle this more gracefully but we can look into it.

Caram

Other apps that (probably) don't use the SDK. They are standard apps from the AppStore, difficult to know the underlying machinery.

At first glance, it looks like you would want to time your operations so as not to get caught by the OS.