My team noticed that after upgrading our QA devices with the October 2019 Security Patch (primarily Samsung and Pixel phone devices), our app is no longer stable.
We are seeing crashes due to a signal 9 in adb logs:
11-01 09:23:51.067 832 832 I Zygote : Process 24758 exited due to signal 9 (Killed)
These crashes are not showing up in our Crashlytics reporting, but we are seeing evidence of this crash via metrics (Session length) and reviews (up tick in 1 star reviews indicating instability).
We cannot find any one thing that triggers this crash. Sitting on our home screen for 5 or so minutes will result in a crash. Navigating around the app for 5 or so minutes will result in a crash.
I've seen some reports indicating signal 9 is tied to memory, but profiling our app shows a stable memory profile, and if anything, we've seen memory slightly decreasing leading to the crash.
Our app is a Cordova app with a sizeable native plugin foot print.
Cordova: 7.0.0 (also tried upgrading to 8.1.0 to no avail)
DJI SDK: 4.11
Google Maps: 16.0.0
RxJava: 2.2.3
Support Libs: AndroidX
Has anyone else experienced instability with this latest update? Tips on debugging this Signal 9 crash?
Thanks.
11/20/2019 Update:
Android OS:
Android 9
Android 10
We've tried removing the DJI SDK entirely from the application and the app is still crashing.