Android ANRs

fnllc
Senior Member

Posts: 153

Android ANRs Nov 20, 2017 11:29:51 GMT

Quote

Post by fnllc on Nov 20, 2017 11:29:51 GMT

Does anyone have experience debugging Android ANRs? The Google Play Dev Console reports a fair amount of them, but I'm unable to reproduce on my end:

I compiled it using:
- Android SDK 7.1.1 (minSDK 23, targetSDK 18)
- Android NDK 14b
- Java JDK 8v151

Crash message:

"main" tid=1 Native
"main" prio=5 tid=1 Native
| group="main" sCount=1 dsCount=0 obj=0x763002e0 self=0xe7c05900
| sysTid=16502 nice=-10 cgrp=default sched=0/0 handle=0xeb076534
| state=S schedstat=( 13064649852 2229136465 24244 ) utm=866 stm=440 core=0 HZ=100
| stack=0xff6d5000-0xff6d7000 stackSize=8MB
| held mutexes=
#00 pc 0000000000049da4 /system/lib/libc.so (__pselect6+20)
#01 pc 000000000001d93f /system/lib/libc.so (select+58)
#02 pc 0000000000559b0c /data/app/com.myapp.myapp-1/lib/arm/librhodes.so (_ZN3rho3net14CURLNetRequest10CURLHolder7performEv+420)
at com.rhomobile.rhodes.RhodesService.callUiDestroyedCallback (Native method)
at com.rhomobile.rhodes.RhodesApplication$1.run (RhodesApplication.java:140)
at com.rhomobile.rhodes.RhodesApplication.runHandlers (RhodesApplication.java:385)
at com.rhomobile.rhodes.RhodesApplication.access$700 (RhodesApplication.java:96)
at com.rhomobile.rhodes.RhodesApplication$UiState.handleState (RhodesApplication.java:574)
at com.rhomobile.rhodes.RhodesApplication.stateChanged (RhodesApplication.java:637)
- locked <0x081222dd> (a java.lang.Class<com.rhomobile.rhodes.RhodesApplication$UiState>)
at com.rhomobile.rhodes.RhodesActivity.onPause (RhodesActivity.java:478)
at android.app.Activity.performPause (Activity.java:7146)
at android.app.Instrumentation.callActivityOnPause (Instrumentation.java:1330)
at android.app.ActivityThread.performPauseActivityIfNeeded (ActivityThread.java:4168)
at android.app.ActivityThread.performPauseActivity (ActivityThread.java:4145)
at android.app.ActivityThread.performPauseActivity (ActivityThread.java:4119)
at android.app.ActivityThread.handlePauseActivity (ActivityThread.java:4093)
at android.app.ActivityThread.-wrap18 (ActivityThread.java)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1654)
at android.os.Handler.dispatchMessage (Handler.java:102)
at android.os.Looper.loop (Looper.java:154)
at android.app.ActivityThread.main (ActivityThread.java:6776)
at java.lang.reflect.Method.invoke! (Native method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1520)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1410)

fnllc Senior Member Posts: 153	Android ANRs Nov 20, 2017 13:58:32 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by fnllc on Nov 20, 2017 13:58:32 GMT The title of the ANR is: Broadcast of Intent { act=android.intent.action.SCREEN_OFF flg=0x50000010 launchParam=MultiScreenLaunchParams { mDisplayId=0 mFlags=0 } (has extras) }

Alex Epifanov Global Moderator Posts: 445	Android ANRs Nov 20, 2017 15:46:56 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by Alex Epifanov on Nov 20, 2017 15:46:56 GMT Do you have any code to reproduce the issue? Steps?

fnllc
Senior Member

Posts: 153

Android ANRs Nov 20, 2017 17:16:25 GMT

Quote

Post by fnllc on Nov 20, 2017 17:16:25 GMT

Sadly it doesn't reproduce on my test devices. I only get these notifications from Google Play Dev Console. I understand that this is essentially not debuggable unless someone can reproduce.

My app records the user position while walking. Users say that after maybe 10 minutes or so the screen goes black and is not responsive. However, this is only for a few users. App works fine for most users.

Alex Epifanov
Global Moderator

Posts: 445

Android ANRs Nov 20, 2017 17:27:48 GMT

Quote

Post by Alex Epifanov on Nov 20, 2017 17:27:48 GMT

You may try to gather logs remotely from users who have this issue with Log.sendLogFile function
a logserver parameter should be set appropriately in rhoconfig.txt then an you will need a server endpoint to collect data ( you may host a web app on heroku for instance )

jontara
Senior Member

Posts: 129

Android ANRs Nov 21, 2017 1:19:15 GMT Alex Epifanov likes this

Quote

Post by jontara on Nov 21, 2017 1:19:15 GMT

The logserver is simple. It just needs to write out what it receives. Here's minimal one in Ruby Sinatra:

# Simple Rhodes log server in Sinatra
# Use rhologurl = "http://server_name:7777"
# Recommend you use thin server, not webrick - gem install thin
# Sinatra will use thin automatically if available
#
# Run like:
#
# ruby logserver.rb | tee rholog.txt

require 'sinatra'

# It's silly to log, since we are a logger, and we'd like to write to STDOUT
set :logging, false
set :bind, '0.0.0.0' # Bind to all IP addresses
set :port, 7777

post '/' do
request.body.rewind
puts request.body.read
end

Post by fnllc on Nov 20, 2017 11:29:51 GMT

Post by fnllc on Nov 20, 2017 13:58:32 GMT

Post by Alex Epifanov on Nov 20, 2017 15:46:56 GMT

Post by fnllc on Nov 20, 2017 17:16:25 GMT

Post by Alex Epifanov on Nov 20, 2017 17:27:48 GMT

Post by jontara on Nov 21, 2017 1:19:15 GMT

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