fe6f85cac9
When a device gets stuck in a crash loop, it's pretty much unusable and impossible for users to recover from. To help rescue devices from this state, this change introduces a new feature that watches for runtime restart loops and persistent app crash loops, and escalates through a series of increasingly aggressive rescue operations. Currently these rescue levels walk through clearing any experiments in SettingsProvider before finally rebooting and prompting the user to wipe data. Crash loops are detected based on a number of events in a specific window of time. App stats can be stored in memory, but boot stats need to be stored in system properties to be more robust. Start up RecoveryService much earlier during the boot so we can reboot into recovery when needed. Add properties tha push system_server or SystemUI into a crash loops for testing purposes. Test: builds, boots, forced crashing walks through modes Bug: 24872457, 30951331 Change-Id: I6cdd37682973fe18de0f08521e88f70ee7d7728b
66 lines
2.0 KiB
Java
66 lines
2.0 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui;
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import android.app.Service;
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import android.content.Intent;
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import android.os.Build;
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import android.os.IBinder;
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import android.os.SystemProperties;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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public class SystemUIService extends Service {
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@Override
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public void onCreate() {
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super.onCreate();
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((SystemUIApplication) getApplication()).startServicesIfNeeded();
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// For debugging RescueParty
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if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean("debug.crash_sysui", false)) {
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throw new RuntimeException();
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}
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}
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@Override
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public IBinder onBind(Intent intent) {
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return null;
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}
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@Override
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protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
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SystemUI[] services = ((SystemUIApplication) getApplication()).getServices();
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if (args == null || args.length == 0) {
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for (SystemUI ui: services) {
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pw.println("dumping service: " + ui.getClass().getName());
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ui.dump(fd, pw, args);
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}
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} else {
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String svc = args[0];
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for (SystemUI ui: services) {
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String name = ui.getClass().getName();
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if (name.endsWith(svc)) {
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ui.dump(fd, pw, args);
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}
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}
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}
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}
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}
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