Various crashes during usage

[Lineflyer]

With todays NB
Details later

[Lineflyer]

A lot of actions seem to lead to a crash.
Cant provide a stack trace at the moment.

Does not seem to be reproducible but seems depending on the speed I perform some actions.

[Lineflyer]

Back at home and here is the log:

22:14:45.613 Error cgeo 29802  UncaughtException
22:14:45.613 Error cgeo 29802  java.lang.IllegalStateException: Exception thrown on Scheduler.Worker thread. Add `onError` handling.
22:14:45.613 Error cgeo 29802   at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:50)
22:14:45.613 Error cgeo 29802   at android.os.Handler.handleCallback(Handler.java:733)
22:14:45.613 Error cgeo 29802   at android.os.Handler.dispatchMessage(Handler.java:95)
22:14:45.613 Error cgeo 29802   at android.os.Looper.loop(Looper.java:157)
22:14:45.613 Error cgeo 29802   at android.app.ActivityThread.main(ActivityThread.java:5356)
22:14:45.613 Error cgeo 29802   at java.lang.reflect.Method.invokeNative(Native Method)
22:14:45.613 Error cgeo 29802   at java.lang.reflect.Method.invoke(Method.java:515)
22:14:45.613 Error cgeo 29802   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
22:14:45.613 Error cgeo 29802   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
22:14:45.613 Error cgeo 29802   at dalvik.system.NativeStart.main(Native Method)
22:14:45.613 Error cgeo 29802  Caused by: rx.exceptions.OnErrorNotImplementedException
22:14:45.613 Error cgeo 29802   at rx.Observable$31.onError(Observable.java:7025)
22:14:45.613 Error cgeo 29802   at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:154)
22:14:45.613 Error cgeo 29802   at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:111)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.NotificationLite.accept(NotificationLite.java:147)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.pollQueue(OperatorObserveOn.java:177)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.access$000(OperatorObserveOn.java:65)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber$2.call(OperatorObserveOn.java:153)
22:14:45.613 Error cgeo 29802   at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:45)
22:14:45.613 Error cgeo 29802   ... 9 more
22:14:45.613 Error cgeo 29802  Caused by: rx.exceptions.MissingBackpressureException
22:14:45.613 Error cgeo 29802   at rx.internal.util.RxRingBuffer.onNext(RxRingBuffer.java:338)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.onNext(OperatorObserveOn.java:115)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)
22:14:45.613 Error cgeo 29802   at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
22:14:45.613 Error cgeo 29802   at rx.subjects.ReplaySubject.onNext(ReplaySubject.java:299)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorMulticast$2.onNext(OperatorMulticast.java:106)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorDoOnEach$1.onNext(OperatorDoOnEach.java:84)
22:14:45.613 Error cgeo 29802   at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$1.onNext(OperatorOnErrorResumeNextViaFunction.java:89)
22:14:45.623 Error cgeo 29802   at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$1.onNext(OperatorOnErrorResumeNextViaFunction.java:89)
22:14:45.623 Error cgeo 29802   at rx.observers.Subscribers$1.onNext(Subscribers.java:66)
22:14:45.623 Error cgeo 29802   at rx.observers.SafeSubscriber.onNext(SafeSubscriber.java:130)
22:14:45.623 Error cgeo 29802   at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
22:14:45.623 Error cgeo 29802   at rx.subjects.PublishSubject.onNext(PublishSubject.java:121)
22:14:45.623 Error cgeo 29802   at cgeo.geocaching.sensors.RotationProvider.onSensorChanged(RotationProvider.java:54)
22:14:45.623 Error cgeo 29802   at android.hardware.SystemSensorManager$SensorEventQueue.dispatchSensorEvent(SystemSensorManager.java:474)
22:14:45.623 Error cgeo 29802   at android.os.MessageQueue.nativePollOnce(Native Method)
22:14:45.623 Error cgeo 29802   at android.os.MessageQueue.next(MessageQueue.java:138)
22:14:45.623 Error cgeo 29802   at android.os.Looper.loop(Looper.java:123)
22:14:45.623 Error cgeo 29802   ... 6 more

[Lineflyer]

@samueltardieu rxjava?

[samueltardieu]

Yup, it looks like your rotation sensor delivers values very rapidly, much more rapidly that they could be used, and filled the buffer.

This could only appear now that we switched to RxJava 1.0 (which includes back pressure). I'll tend to it.

[Lineflyer]

It make c:geo unusable on my device (Galaxy S4) currently. Seems more devices could suffer from that then.

[samueltardieu]

@Lineflyer Please confirm that this fixes the issue for you (starting with 20141124-NB).

I have put in place both a protection against a buffer fill in orientation and rotation providers, and also limited the orientation and location updates to 4 per second in lists as there is no need to be more precise than that.

[Lineflyer]

Version 20141124-NB seems to be stable again. No more crashes during usage up to now.