2 * Copyright (C) 2016 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
17 package com.android.server.am;
19 import com.android.internal.app.ProcessMap;
20 import com.android.internal.logging.MetricsLogger;
21 import com.android.internal.logging.nano.MetricsProto;
22 import com.android.internal.os.ProcessCpuTracker;
23 import com.android.server.RescueParty;
24 import com.android.server.Watchdog;
26 import android.app.ActivityManager;
27 import android.app.ActivityOptions;
28 import android.app.ActivityThread;
29 import android.app.AppOpsManager;
30 import android.app.ApplicationErrorReport;
31 import android.app.Dialog;
32 import android.content.ActivityNotFoundException;
33 import android.content.Context;
34 import android.content.Intent;
35 import android.content.pm.ApplicationInfo;
36 import android.os.Binder;
37 import android.os.Message;
38 import android.os.Process;
39 import android.os.RemoteException;
40 import android.os.SystemClock;
41 import android.os.SystemProperties;
42 import android.os.UserHandle;
43 import android.provider.Settings;
44 import android.util.ArrayMap;
45 import android.util.ArraySet;
46 import android.util.EventLog;
47 import android.util.Log;
48 import android.util.Slog;
49 import android.util.SparseArray;
50 import android.util.TimeUtils;
53 import java.io.FileDescriptor;
54 import java.io.PrintWriter;
55 import java.util.ArrayList;
56 import java.util.Collections;
57 import java.util.HashMap;
60 import static com.android.server.Watchdog.NATIVE_STACKS_OF_INTEREST;
61 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ANR;
62 import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
63 import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
64 import static com.android.server.am.ActivityManagerService.MY_PID;
65 import static com.android.server.am.ActivityManagerService.SYSTEM_DEBUGGABLE;
68 * Controls error conditions in applications.
72 private static final String TAG = TAG_WITH_CLASS_NAME ? "AppErrors" : TAG_AM;
74 private final ActivityManagerService mService;
75 private final Context mContext;
77 private ArraySet<String> mAppsNotReportingCrashes;
80 * The last time that various processes have crashed since they were last explicitly started.
82 private final ProcessMap<Long> mProcessCrashTimes = new ProcessMap<>();
85 * The last time that various processes have crashed (not reset even when explicitly started).
87 private final ProcessMap<Long> mProcessCrashTimesPersistent = new ProcessMap<>();
90 * Set of applications that we consider to be bad, and will reject
91 * incoming broadcasts from (which the user has no control over).
92 * Processes are added to this set when they have crashed twice within
93 * a minimum amount of time; they are removed from it when they are
94 * later restarted (hopefully due to some user action). The value is the
95 * time it was added to the list.
97 private final ProcessMap<BadProcessInfo> mBadProcesses = new ProcessMap<>();
100 AppErrors(Context context, ActivityManagerService service) {
101 context.assertRuntimeOverlayThemable();
106 boolean dumpLocked(FileDescriptor fd, PrintWriter pw, boolean needSep,
107 String dumpPackage) {
108 if (!mProcessCrashTimes.getMap().isEmpty()) {
109 boolean printed = false;
110 final long now = SystemClock.uptimeMillis();
111 final ArrayMap<String, SparseArray<Long>> pmap = mProcessCrashTimes.getMap();
112 final int processCount = pmap.size();
113 for (int ip = 0; ip < processCount; ip++) {
114 final String pname = pmap.keyAt(ip);
115 final SparseArray<Long> uids = pmap.valueAt(ip);
116 final int uidCount = uids.size();
117 for (int i = 0; i < uidCount; i++) {
118 final int puid = uids.keyAt(i);
119 final ProcessRecord r = mService.mProcessNames.get(pname, puid);
120 if (dumpPackage != null && (r == null
121 || !r.pkgList.containsKey(dumpPackage))) {
125 if (needSep) pw.println();
127 pw.println(" Time since processes crashed:");
130 pw.print(" Process "); pw.print(pname);
131 pw.print(" uid "); pw.print(puid);
132 pw.print(": last crashed ");
133 TimeUtils.formatDuration(now-uids.valueAt(i), pw);
139 if (!mBadProcesses.getMap().isEmpty()) {
140 boolean printed = false;
141 final ArrayMap<String, SparseArray<BadProcessInfo>> pmap = mBadProcesses.getMap();
142 final int processCount = pmap.size();
143 for (int ip = 0; ip < processCount; ip++) {
144 final String pname = pmap.keyAt(ip);
145 final SparseArray<BadProcessInfo> uids = pmap.valueAt(ip);
146 final int uidCount = uids.size();
147 for (int i = 0; i < uidCount; i++) {
148 final int puid = uids.keyAt(i);
149 final ProcessRecord r = mService.mProcessNames.get(pname, puid);
150 if (dumpPackage != null && (r == null
151 || !r.pkgList.containsKey(dumpPackage))) {
155 if (needSep) pw.println();
157 pw.println(" Bad processes:");
160 final BadProcessInfo info = uids.valueAt(i);
161 pw.print(" Bad process "); pw.print(pname);
162 pw.print(" uid "); pw.print(puid);
163 pw.print(": crashed at time "); pw.println(info.time);
164 if (info.shortMsg != null) {
165 pw.print(" Short msg: "); pw.println(info.shortMsg);
167 if (info.longMsg != null) {
168 pw.print(" Long msg: "); pw.println(info.longMsg);
170 if (info.stack != null) {
171 pw.println(" Stack:");
173 for (int pos = 0; pos < info.stack.length(); pos++) {
174 if (info.stack.charAt(pos) == '\n') {
176 pw.write(info.stack, lastPos, pos-lastPos);
181 if (lastPos < info.stack.length()) {
183 pw.write(info.stack, lastPos, info.stack.length()-lastPos);
193 boolean isBadProcessLocked(ApplicationInfo info) {
194 return mBadProcesses.get(info.processName, info.uid) != null;
197 void clearBadProcessLocked(ApplicationInfo info) {
198 mBadProcesses.remove(info.processName, info.uid);
201 void resetProcessCrashTimeLocked(ApplicationInfo info) {
202 mProcessCrashTimes.remove(info.processName, info.uid);
205 void resetProcessCrashTimeLocked(boolean resetEntireUser, int appId, int userId) {
206 final ArrayMap<String, SparseArray<Long>> pmap = mProcessCrashTimes.getMap();
207 for (int ip = pmap.size() - 1; ip >= 0; ip--) {
208 SparseArray<Long> ba = pmap.valueAt(ip);
209 for (int i = ba.size() - 1; i >= 0; i--) {
210 boolean remove = false;
211 final int entUid = ba.keyAt(i);
212 if (!resetEntireUser) {
213 if (userId == UserHandle.USER_ALL) {
214 if (UserHandle.getAppId(entUid) == appId) {
218 if (entUid == UserHandle.getUid(userId, appId)) {
222 } else if (UserHandle.getUserId(entUid) == userId) {
229 if (ba.size() == 0) {
235 void loadAppsNotReportingCrashesFromConfigLocked(String appsNotReportingCrashesConfig) {
236 if (appsNotReportingCrashesConfig != null) {
237 final String[] split = appsNotReportingCrashesConfig.split(",");
238 if (split.length > 0) {
239 mAppsNotReportingCrashes = new ArraySet<>();
240 Collections.addAll(mAppsNotReportingCrashes, split);
245 void killAppAtUserRequestLocked(ProcessRecord app, Dialog fromDialog) {
246 app.crashing = false;
247 app.crashingReport = null;
248 app.notResponding = false;
249 app.notRespondingReport = null;
250 if (app.anrDialog == fromDialog) {
251 app.anrDialog = null;
253 if (app.waitDialog == fromDialog) {
254 app.waitDialog = null;
256 if (app.pid > 0 && app.pid != MY_PID) {
257 handleAppCrashLocked(app, "user-terminated" /*reason*/,
258 null /*shortMsg*/, null /*longMsg*/, null /*stackTrace*/, null /*data*/);
259 app.kill("user request after error", true);
264 * Induce a crash in the given app.
266 * @param uid if nonnegative, the required matching uid of the target to crash
267 * @param initialPid fast-path match for the target to crash
268 * @param packageName fallback match if the stated pid is not found or doesn't match uid
269 * @param userId If nonnegative, required to identify a match by package name
272 void scheduleAppCrashLocked(int uid, int initialPid, String packageName, int userId,
274 ProcessRecord proc = null;
276 // Figure out which process to kill. We don't trust that initialPid
277 // still has any relation to current pids, so must scan through the
280 synchronized (mService.mPidsSelfLocked) {
281 for (int i=0; i<mService.mPidsSelfLocked.size(); i++) {
282 ProcessRecord p = mService.mPidsSelfLocked.valueAt(i);
283 if (uid >= 0 && p.uid != uid) {
286 if (p.pid == initialPid) {
290 if (p.pkgList.containsKey(packageName)
291 && (userId < 0 || p.userId == userId)) {
298 Slog.w(TAG, "crashApplication: nothing for uid=" + uid
299 + " initialPid=" + initialPid
300 + " packageName=" + packageName
301 + " userId=" + userId);
305 proc.scheduleCrash(message);
309 * Bring up the "unexpected error" dialog box for a crashing app.
310 * Deal with edge cases (intercepts from instrumented applications,
311 * ActivityController, error intent receivers, that sort of thing).
312 * @param r the application crashing
313 * @param crashInfo describing the failure
315 void crashApplication(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo) {
316 final int callingPid = Binder.getCallingPid();
317 final int callingUid = Binder.getCallingUid();
319 final long origId = Binder.clearCallingIdentity();
321 crashApplicationInner(r, crashInfo, callingPid, callingUid);
323 Binder.restoreCallingIdentity(origId);
327 void crashApplicationInner(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo,
328 int callingPid, int callingUid) {
329 long timeMillis = System.currentTimeMillis();
330 String shortMsg = crashInfo.exceptionClassName;
331 String longMsg = crashInfo.exceptionMessage;
332 String stackTrace = crashInfo.stackTrace;
333 if (shortMsg != null && longMsg != null) {
334 longMsg = shortMsg + ": " + longMsg;
335 } else if (shortMsg != null) {
339 // If a persistent app is stuck in a crash loop, the device isn't very
340 // usable, so we want to consider sending out a rescue party.
341 if (r != null && r.persistent) {
342 RescueParty.notePersistentAppCrash(mContext, r.uid);
345 AppErrorResult result = new AppErrorResult();
347 synchronized (mService) {
349 * If crash is handled by instance of {@link android.app.IActivityController},
350 * finish now and don't show the app error dialog.
352 if (handleAppCrashInActivityController(r, crashInfo, shortMsg, longMsg, stackTrace,
353 timeMillis, callingPid, callingUid)) {
358 * If this process was running instrumentation, finish now - it will be handled in
359 * {@link ActivityManagerService#handleAppDiedLocked}.
361 if (r != null && r.instr != null) {
365 // Log crash in battery stats.
367 mService.mBatteryStatsService.noteProcessCrash(r.processName, r.uid);
370 AppErrorDialog.Data data = new AppErrorDialog.Data();
371 data.result = result;
374 // If we can't identify the process or it's already exceeded its crash quota,
375 // quit right away without showing a crash dialog.
376 if (r == null || !makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace, data)) {
380 final Message msg = Message.obtain();
381 msg.what = ActivityManagerService.SHOW_ERROR_UI_MSG;
385 mService.mUiHandler.sendMessage(msg);
388 int res = result.get();
390 Intent appErrorIntent = null;
391 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_CRASH, res);
392 if (res == AppErrorDialog.TIMEOUT || res == AppErrorDialog.CANCEL) {
393 res = AppErrorDialog.FORCE_QUIT;
395 synchronized (mService) {
396 if (res == AppErrorDialog.MUTE) {
397 stopReportingCrashesLocked(r);
399 if (res == AppErrorDialog.RESTART) {
400 mService.removeProcessLocked(r, false, true, "crash");
403 mService.startActivityFromRecents(task.taskId,
404 ActivityOptions.makeBasic().toBundle());
405 } catch (IllegalArgumentException e) {
406 // Hmm, that didn't work, app might have crashed before creating a
407 // recents entry. Let's see if we have a safe-to-restart intent.
408 final Set<String> cats = task.intent.getCategories();
409 if (cats != null && cats.contains(Intent.CATEGORY_LAUNCHER)) {
410 mService.startActivityInPackage(task.mCallingUid,
411 task.mCallingPackage, task.intent, null, null, null, 0, 0,
412 ActivityOptions.makeBasic().toBundle(), task.userId, null,
418 if (res == AppErrorDialog.FORCE_QUIT) {
419 long orig = Binder.clearCallingIdentity();
421 // Kill it with fire!
422 mService.mStackSupervisor.handleAppCrashLocked(r);
424 mService.removeProcessLocked(r, false, false, "crash");
425 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked();
428 Binder.restoreCallingIdentity(orig);
431 if (res == AppErrorDialog.FORCE_QUIT_AND_REPORT) {
432 appErrorIntent = createAppErrorIntentLocked(r, timeMillis, crashInfo);
434 if (r != null && !r.isolated && res != AppErrorDialog.RESTART) {
435 // XXX Can't keep track of crash time for isolated processes,
436 // since they don't have a persistent identity.
437 mProcessCrashTimes.put(r.info.processName, r.uid,
438 SystemClock.uptimeMillis());
442 if (appErrorIntent != null) {
444 mContext.startActivityAsUser(appErrorIntent, new UserHandle(r.userId));
445 } catch (ActivityNotFoundException e) {
446 Slog.w(TAG, "bug report receiver dissappeared", e);
451 private boolean handleAppCrashInActivityController(ProcessRecord r,
452 ApplicationErrorReport.CrashInfo crashInfo,
453 String shortMsg, String longMsg,
454 String stackTrace, long timeMillis,
455 int callingPid, int callingUid) {
456 if (mService.mController == null) {
461 String name = r != null ? r.processName : null;
462 int pid = r != null ? r.pid : callingPid;
463 int uid = r != null ? r.info.uid : callingUid;
464 if (!mService.mController.appCrashed(name, pid,
465 shortMsg, longMsg, timeMillis, crashInfo.stackTrace)) {
466 if ("1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0"))
467 && "Native crash".equals(crashInfo.exceptionClassName)) {
468 Slog.w(TAG, "Skip killing native crashed app " + name
469 + "(" + pid + ") during testing");
471 Slog.w(TAG, "Force-killing crashed app " + name
472 + " at watcher's request");
474 if (!makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace, null))
476 r.kill("crash", true);
480 Process.killProcess(pid);
481 ActivityManagerService.killProcessGroup(uid, pid);
486 } catch (RemoteException e) {
487 mService.mController = null;
488 Watchdog.getInstance().setActivityController(null);
493 private boolean makeAppCrashingLocked(ProcessRecord app,
494 String shortMsg, String longMsg, String stackTrace, AppErrorDialog.Data data) {
496 app.crashingReport = generateProcessError(app,
497 ActivityManager.ProcessErrorStateInfo.CRASHED, null, shortMsg, longMsg, stackTrace);
498 startAppProblemLocked(app);
499 app.stopFreezingAllLocked();
500 return handleAppCrashLocked(app, "force-crash" /*reason*/, shortMsg, longMsg, stackTrace,
504 void startAppProblemLocked(ProcessRecord app) {
505 // If this app is not running under the current user, then we
506 // can't give it a report button because that would require
507 // launching the report UI under a different user.
508 app.errorReportReceiver = null;
510 for (int userId : mService.mUserController.getCurrentProfileIdsLocked()) {
511 if (app.userId == userId) {
512 app.errorReportReceiver = ApplicationErrorReport.getErrorReportReceiver(
513 mContext, app.info.packageName, app.info.flags);
516 mService.skipCurrentReceiverLocked(app);
520 * Generate a process error record, suitable for attachment to a ProcessRecord.
522 * @param app The ProcessRecord in which the error occurred.
523 * @param condition Crashing, Application Not Responding, etc. Values are defined in
524 * ActivityManager.AppErrorStateInfo
525 * @param activity The activity associated with the crash, if known.
526 * @param shortMsg Short message describing the crash.
527 * @param longMsg Long message describing the crash.
528 * @param stackTrace Full crash stack trace, may be null.
530 * @return Returns a fully-formed AppErrorStateInfo record.
532 private ActivityManager.ProcessErrorStateInfo generateProcessError(ProcessRecord app,
533 int condition, String activity, String shortMsg, String longMsg, String stackTrace) {
534 ActivityManager.ProcessErrorStateInfo report = new ActivityManager.ProcessErrorStateInfo();
536 report.condition = condition;
537 report.processName = app.processName;
538 report.pid = app.pid;
539 report.uid = app.info.uid;
540 report.tag = activity;
541 report.shortMsg = shortMsg;
542 report.longMsg = longMsg;
543 report.stackTrace = stackTrace;
548 Intent createAppErrorIntentLocked(ProcessRecord r,
549 long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
550 ApplicationErrorReport report = createAppErrorReportLocked(r, timeMillis, crashInfo);
551 if (report == null) {
554 Intent result = new Intent(Intent.ACTION_APP_ERROR);
555 result.setComponent(r.errorReportReceiver);
556 result.putExtra(Intent.EXTRA_BUG_REPORT, report);
557 result.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
561 private ApplicationErrorReport createAppErrorReportLocked(ProcessRecord r,
562 long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) {
563 if (r.errorReportReceiver == null) {
567 if (!r.crashing && !r.notResponding && !r.forceCrashReport) {
571 ApplicationErrorReport report = new ApplicationErrorReport();
572 report.packageName = r.info.packageName;
573 report.installerPackageName = r.errorReportReceiver.getPackageName();
574 report.processName = r.processName;
575 report.time = timeMillis;
576 report.systemApp = (r.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
578 if (r.crashing || r.forceCrashReport) {
579 report.type = ApplicationErrorReport.TYPE_CRASH;
580 report.crashInfo = crashInfo;
581 } else if (r.notResponding) {
582 report.type = ApplicationErrorReport.TYPE_ANR;
583 report.anrInfo = new ApplicationErrorReport.AnrInfo();
585 report.anrInfo.activity = r.notRespondingReport.tag;
586 report.anrInfo.cause = r.notRespondingReport.shortMsg;
587 report.anrInfo.info = r.notRespondingReport.longMsg;
593 boolean handleAppCrashLocked(ProcessRecord app, String reason,
594 String shortMsg, String longMsg, String stackTrace, AppErrorDialog.Data data) {
595 final long now = SystemClock.uptimeMillis();
596 final boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
597 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
599 final boolean procIsBoundForeground =
600 (app.curProcState == ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE);
603 Long crashTimePersistent;
604 boolean tryAgain = false;
607 crashTime = mProcessCrashTimes.get(app.info.processName, app.uid);
608 crashTimePersistent = mProcessCrashTimesPersistent.get(app.info.processName, app.uid);
610 crashTime = crashTimePersistent = null;
613 // Bump up the crash count of any services currently running in the proc.
614 for (int i = app.services.size() - 1; i >= 0; i--) {
615 // Any services running in the application need to be placed
616 // back in the pending list.
617 ServiceRecord sr = app.services.valueAt(i);
618 // If the service was restarted a while ago, then reset crash count, else increment it.
619 if (now > sr.restartTime + ProcessList.MIN_CRASH_INTERVAL) {
624 // Allow restarting for started or bound foreground services that are crashing.
625 // This includes wallpapers.
626 if (sr.crashCount < mService.mConstants.BOUND_SERVICE_MAX_CRASH_RETRY
627 && (sr.isForeground || procIsBoundForeground)) {
632 if (crashTime != null && now < crashTime + ProcessList.MIN_CRASH_INTERVAL) {
633 // The process crashed again very quickly. If it was a bound foreground service, let's
634 // try to restart again in a while, otherwise the process loses!
635 Slog.w(TAG, "Process " + app.info.processName
636 + " has crashed too many times: killing!");
637 EventLog.writeEvent(EventLogTags.AM_PROCESS_CRASHED_TOO_MUCH,
638 app.userId, app.info.processName, app.uid);
639 mService.mStackSupervisor.handleAppCrashLocked(app);
640 if (!app.persistent) {
641 // We don't want to start this process again until the user
642 // explicitly does so... but for persistent process, we really
643 // need to keep it running. If a persistent process is actually
644 // repeatedly crashing, then badness for everyone.
645 EventLog.writeEvent(EventLogTags.AM_PROC_BAD, app.userId, app.uid,
646 app.info.processName);
648 // XXX We don't have a way to mark isolated processes
649 // as bad, since they don't have a peristent identity.
650 mBadProcesses.put(app.info.processName, app.uid,
651 new BadProcessInfo(now, shortMsg, longMsg, stackTrace));
652 mProcessCrashTimes.remove(app.info.processName, app.uid);
656 // Don't let services in this process be restarted and potentially
657 // annoy the user repeatedly. Unless it is persistent, since those
658 // processes run critical code.
659 mService.removeProcessLocked(app, false, tryAgain, "crash");
660 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked();
661 if (!showBackground) {
665 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked();
667 TaskRecord affectedTask =
668 mService.mStackSupervisor.finishTopRunningActivityLocked(app, reason);
670 data.task = affectedTask;
672 if (data != null && crashTimePersistent != null
673 && now < crashTimePersistent + ProcessList.MIN_CRASH_INTERVAL) {
674 data.repeating = true;
678 if (data != null && tryAgain) {
679 data.isRestartableForService = true;
682 // If the crashing process is what we consider to be the "home process" and it has been
683 // replaced by a third-party app, clear the package preferred activities from packages
684 // with a home activity running in the process to prevent a repeatedly crashing app
685 // from blocking the user to manually clear the list.
686 final ArrayList<ActivityRecord> activities = app.activities;
687 if (app == mService.mHomeProcess && activities.size() > 0
688 && (mService.mHomeProcess.info.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {
689 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
690 final ActivityRecord r = activities.get(activityNdx);
691 if (r.isHomeActivity()) {
692 Log.i(TAG, "Clearing package preferred activities from " + r.packageName);
694 ActivityThread.getPackageManager()
695 .clearPackagePreferredActivities(r.packageName);
696 } catch (RemoteException c) {
697 // pm is in same process, this will never happen.
704 // XXX Can't keep track of crash times for isolated processes,
705 // because they don't have a persistent identity.
706 mProcessCrashTimes.put(app.info.processName, app.uid, now);
707 mProcessCrashTimesPersistent.put(app.info.processName, app.uid, now);
710 if (app.crashHandler != null) mService.mHandler.post(app.crashHandler);
714 void handleShowAppErrorUi(Message msg) {
715 AppErrorDialog.Data data = (AppErrorDialog.Data) msg.obj;
716 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
717 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
718 synchronized (mService) {
719 ProcessRecord proc = data.proc;
720 AppErrorResult res = data.result;
721 if (proc != null && proc.crashDialog != null) {
722 Slog.e(TAG, "App already has crash dialog: " + proc);
724 res.set(AppErrorDialog.ALREADY_SHOWING);
728 boolean isBackground = (UserHandle.getAppId(proc.uid)
729 >= Process.FIRST_APPLICATION_UID
730 && proc.pid != MY_PID);
731 for (int userId : mService.mUserController.getCurrentProfileIdsLocked()) {
732 isBackground &= (proc.userId != userId);
734 if (isBackground && !showBackground) {
735 Slog.w(TAG, "Skipping crash dialog of " + proc + ": background");
737 res.set(AppErrorDialog.BACKGROUND_USER);
741 final boolean crashSilenced = mAppsNotReportingCrashes != null &&
742 mAppsNotReportingCrashes.contains(proc.info.packageName);
743 if ((mService.canShowErrorDialogs() || showBackground) && !crashSilenced) {
744 proc.crashDialog = new AppErrorDialog(mContext, mService, data);
746 // The device is asleep, so just pretend that the user
747 // saw a crash dialog and hit "force quit".
749 res.set(AppErrorDialog.CANT_SHOW);
753 // If we've created a crash dialog, show it without the lock held
754 if(data.proc.crashDialog != null) {
755 Slog.i(TAG, "Showing crash dialog for package " + data.proc.info.packageName
756 + " u" + data.proc.userId);
757 data.proc.crashDialog.show();
761 void stopReportingCrashesLocked(ProcessRecord proc) {
762 if (mAppsNotReportingCrashes == null) {
763 mAppsNotReportingCrashes = new ArraySet<>();
765 mAppsNotReportingCrashes.add(proc.info.packageName);
768 static boolean isInterestingForBackgroundTraces(ProcessRecord app) {
769 // The system_server is always considered interesting.
770 if (app.pid == MY_PID) {
774 // A package is considered interesting if any of the following is true :
776 // - It's displaying an activity.
777 // - It's the SystemUI.
778 // - It has an overlay or a top UI visible.
780 // NOTE: The check whether a given ProcessRecord belongs to the systemui
781 // process is a bit of a kludge, but the same pattern seems repeated at
782 // several places in the system server.
783 return app.isInterestingToUserLocked() ||
784 (app.info != null && "com.android.systemui".equals(app.info.packageName)) ||
785 (app.hasTopUi || app.hasOverlayUi);
788 final void appNotResponding(ProcessRecord app, ActivityRecord activity,
789 ActivityRecord parent, boolean aboveSystem, final String annotation) {
790 ArrayList<Integer> firstPids = new ArrayList<Integer>(5);
791 SparseArray<Boolean> lastPids = new SparseArray<Boolean>(20);
793 if (mService.mController != null) {
795 // 0 == continue, -1 = kill process immediately
796 int res = mService.mController.appEarlyNotResponding(
797 app.processName, app.pid, annotation);
798 if (res < 0 && app.pid != MY_PID) {
799 app.kill("anr", true);
801 } catch (RemoteException e) {
802 mService.mController = null;
803 Watchdog.getInstance().setActivityController(null);
807 long anrTime = SystemClock.uptimeMillis();
808 if (ActivityManagerService.MONITOR_CPU_USAGE) {
809 mService.updateCpuStatsNow();
812 // Unless configured otherwise, swallow ANRs in background processes & kill the process.
813 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
814 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
818 synchronized (mService) {
819 // PowerManager.reboot() can block for a long time, so ignore ANRs while shutting down.
820 if (mService.mShuttingDown) {
821 Slog.i(TAG, "During shutdown skipping ANR: " + app + " " + annotation);
823 } else if (app.notResponding) {
824 Slog.i(TAG, "Skipping duplicate ANR: " + app + " " + annotation);
826 } else if (app.crashing) {
827 Slog.i(TAG, "Crashing app skipping ANR: " + app + " " + annotation);
829 } else if (app.killedByAm) {
830 Slog.i(TAG, "App already killed by AM skipping ANR: " + app + " " + annotation);
832 } else if (app.killed) {
833 Slog.i(TAG, "Skipping died app ANR: " + app + " " + annotation);
837 // In case we come through here for the same app before completing
838 // this one, mark as anring now so we will bail out.
839 app.notResponding = true;
841 // Log the ANR to the event log.
842 EventLog.writeEvent(EventLogTags.AM_ANR, app.userId, app.pid,
843 app.processName, app.info.flags, annotation);
845 // Dump thread traces as quickly as we can, starting with "interesting" processes.
846 firstPids.add(app.pid);
848 // Don't dump other PIDs if it's a background ANR
849 isSilentANR = !showBackground && !isInterestingForBackgroundTraces(app);
851 int parentPid = app.pid;
852 if (parent != null && parent.app != null && parent.app.pid > 0) {
853 parentPid = parent.app.pid;
855 if (parentPid != app.pid) firstPids.add(parentPid);
857 if (MY_PID != app.pid && MY_PID != parentPid) firstPids.add(MY_PID);
859 for (int i = mService.mLruProcesses.size() - 1; i >= 0; i--) {
860 ProcessRecord r = mService.mLruProcesses.get(i);
861 if (r != null && r.thread != null) {
863 if (pid > 0 && pid != app.pid && pid != parentPid && pid != MY_PID) {
866 if (DEBUG_ANR) Slog.i(TAG, "Adding persistent proc: " + r);
867 } else if (r.treatLikeActivity) {
869 if (DEBUG_ANR) Slog.i(TAG, "Adding likely IME: " + r);
871 lastPids.put(pid, Boolean.TRUE);
872 if (DEBUG_ANR) Slog.i(TAG, "Adding ANR proc: " + r);
880 // Log the ANR to the main log.
881 StringBuilder info = new StringBuilder();
883 info.append("ANR in ").append(app.processName);
884 if (activity != null && activity.shortComponentName != null) {
885 info.append(" (").append(activity.shortComponentName).append(")");
888 info.append("PID: ").append(app.pid).append("\n");
889 if (annotation != null) {
890 info.append("Reason: ").append(annotation).append("\n");
892 if (parent != null && parent != activity) {
893 info.append("Parent: ").append(parent.shortComponentName).append("\n");
896 ProcessCpuTracker processCpuTracker = new ProcessCpuTracker(true);
898 // don't dump native PIDs for background ANRs unless it is the process of interest
899 String[] nativeProcs = null;
901 for (int i = 0; i < NATIVE_STACKS_OF_INTEREST.length; i++) {
902 if (NATIVE_STACKS_OF_INTEREST[i].equals(app.processName)) {
903 nativeProcs = new String[] { app.processName };
908 nativeProcs = NATIVE_STACKS_OF_INTEREST;
911 int[] pids = nativeProcs == null ? null : Process.getPidsForCommands(nativeProcs);
912 ArrayList<Integer> nativePids = null;
915 nativePids = new ArrayList<Integer>(pids.length);
921 // For background ANRs, don't pass the ProcessCpuTracker to
922 // avoid spending 1/2 second collecting stats to rank lastPids.
923 File tracesFile = ActivityManagerService.dumpStackTraces(
925 (isSilentANR) ? null : processCpuTracker,
926 (isSilentANR) ? null : lastPids,
929 String cpuInfo = null;
930 if (ActivityManagerService.MONITOR_CPU_USAGE) {
931 mService.updateCpuStatsNow();
932 synchronized (mService.mProcessCpuTracker) {
933 cpuInfo = mService.mProcessCpuTracker.printCurrentState(anrTime);
935 info.append(processCpuTracker.printCurrentLoad());
936 info.append(cpuInfo);
939 info.append(processCpuTracker.printCurrentState(anrTime));
941 Slog.e(TAG, info.toString());
942 if (tracesFile == null) {
943 // There is no trace file, so dump (only) the alleged culprit's threads to the log
944 Process.sendSignal(app.pid, Process.SIGNAL_QUIT);
947 mService.addErrorToDropBox("anr", app, app.processName, activity, parent, annotation,
948 cpuInfo, tracesFile, null);
950 if (mService.mController != null) {
952 // 0 == show dialog, 1 = keep waiting, -1 = kill process immediately
953 int res = mService.mController.appNotResponding(
954 app.processName, app.pid, info.toString());
956 if (res < 0 && app.pid != MY_PID) {
957 app.kill("anr", true);
959 synchronized (mService) {
960 mService.mServices.scheduleServiceTimeoutLocked(app);
965 } catch (RemoteException e) {
966 mService.mController = null;
967 Watchdog.getInstance().setActivityController(null);
971 synchronized (mService) {
972 mService.mBatteryStatsService.noteProcessAnr(app.processName, app.uid);
975 app.kill("bg anr", true);
979 // Set the app's notResponding state, and look up the errorReportReceiver
980 makeAppNotRespondingLocked(app,
981 activity != null ? activity.shortComponentName : null,
982 annotation != null ? "ANR " + annotation : "ANR",
985 // Bring up the infamous App Not Responding dialog
986 Message msg = Message.obtain();
987 HashMap<String, Object> map = new HashMap<String, Object>();
988 msg.what = ActivityManagerService.SHOW_NOT_RESPONDING_UI_MSG;
990 msg.arg1 = aboveSystem ? 1 : 0;
992 if (activity != null) {
993 map.put("activity", activity);
996 mService.mUiHandler.sendMessage(msg);
1000 private void makeAppNotRespondingLocked(ProcessRecord app,
1001 String activity, String shortMsg, String longMsg) {
1002 app.notResponding = true;
1003 app.notRespondingReport = generateProcessError(app,
1004 ActivityManager.ProcessErrorStateInfo.NOT_RESPONDING,
1005 activity, shortMsg, longMsg, null);
1006 startAppProblemLocked(app);
1007 app.stopFreezingAllLocked();
1010 void handleShowAnrUi(Message msg) {
1012 synchronized (mService) {
1013 HashMap<String, Object> data = (HashMap<String, Object>) msg.obj;
1014 ProcessRecord proc = (ProcessRecord)data.get("app");
1015 if (proc != null && proc.anrDialog != null) {
1016 Slog.e(TAG, "App already has anr dialog: " + proc);
1017 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_ANR,
1018 AppNotRespondingDialog.ALREADY_SHOWING);
1022 Intent intent = new Intent("android.intent.action.ANR");
1023 if (!mService.mProcessesReady) {
1024 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
1025 | Intent.FLAG_RECEIVER_FOREGROUND);
1027 mService.broadcastIntentLocked(null, null, intent,
1028 null, null, 0, null, null, null, AppOpsManager.OP_NONE,
1029 null, false, false, MY_PID, Process.SYSTEM_UID, 0 /* TODO: Verify */);
1031 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(),
1032 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0;
1033 if (mService.canShowErrorDialogs() || showBackground) {
1034 d = new AppNotRespondingDialog(mService,
1035 mContext, proc, (ActivityRecord)data.get("activity"),
1039 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_ANR,
1040 AppNotRespondingDialog.CANT_SHOW);
1041 // Just kill the app if there is no dialog to be shown.
1042 mService.killAppAtUsersRequest(proc, null);
1045 // If we've created a crash dialog, show it without the lock held
1052 * Information about a process that is currently marked as bad.
1054 static final class BadProcessInfo {
1055 BadProcessInfo(long time, String shortMsg, String longMsg, String stack) {
1057 this.shortMsg = shortMsg;
1058 this.longMsg = longMsg;
1063 final String shortMsg;
1064 final String longMsg;