[Bug]: kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for CancellableContinuation

[Sardorbekcyber]

What happened?

For my app I am getting error on OneSignal from Crashlytics

Steps to reproduce?

Not sure how to reproduce this as I am getting it from alerts

What did you expect to happen?

No crashes from OneSignal

OneSignal Android SDK version

Release 5.1.1

Android version

9

Specific Android models

Samsung Galaxy Note 8

Relevant log output

Fatal Exception: kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for CancellableContinuation(DispatchedContinuation[BlockingEventLoop@1cb3cac, Continuation at com.onesignal.core.internal.operations.impl.OperationRepo$processQueueForever$3.invokeSuspend(OperationRepo.kt:141)@546bf1]){Cancelled}@a3b93d6. Please read KDoc to 'handleFatalException' method and report this incident to maintainers
       at kotlinx.coroutines.DispatchedTask.handleFatalException$kotlinx_coroutines_core(DispatchedTask.kt:146)
       at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:117)
       at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:280)
       at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85)
       at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
       at kotlinx.coroutines.BuildersKt.runBlocking(:1)
       at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
       at kotlinx.coroutines.BuildersKt.runBlocking$default(:1)
       at com.onesignal.common.threading.ThreadUtilsKt$suspendifyOnThread$2.invoke(ThreadUtils.kt:91)
       at com.onesignal.common.threading.ThreadUtilsKt$suspendifyOnThread$2.invoke(ThreadUtils.kt:89)
       at kotlin.concurrent.ThreadsKt$thread$thread$1.run(Thread.kt:30)

Code of Conduct

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[jkasten2]

@Sardorbekcyber Thanks for reporting. I see this is thrown from the kotlinx.coroutines library here. It's not clear to me if this is a OneSignal issue or an issue with the library or Kotlin.

Do you get any other details in Crashlytics such as a "Caused by:" section?

• I researched this and found other crash reports with the kotlinx.coroutines library normally contain "Caused by:".

What percentage users / devices effected and number of crashes?

• Is the crash only happening on that single device Samsung Galaxy Note 8 running Android 9?

Can you try updating to the latest OneSignal-Android-SDK (currently 5.1.6)?

Also OneSignal uses kotlinx-coroutines 1.6.4, it's possible they fixed this in a newer version. Can you try adding this to your build.gradle / build.kts to upgrade that library?

implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.4")

[Sardorbekcyber]

Do you get any other details in Crashlytics such as a "Caused by:" section? - Yes below is what is caused by

Caused by java.lang.OutOfMemoryError

What percentage users / devices effected and number of crashes? - Only single user rught now

Can you try updating to the latest OneSignal-Android-SDK (currently 5.1.6)? - Yeap I will be updating both OneSignal and KotlinX Coroutines. But It turns out issue was not in libraries anyway but OutOfMemory Exception

[jkasten2]

@Sardorbekcyber Thanks for the details. The Caused by java.lang.OutOfMemoryError section should also have it's own stack trace. Can you include that, as well any other parts of that stacktrace so we can get the full stack?