AppErrors.java revision 5b679c4d177b18435d362e34a2fce43e0d63e4ae
1/* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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 15 */ 16 17package com.android.server.am; 18 19import com.android.internal.app.ProcessMap; 20import com.android.internal.logging.MetricsLogger; 21import com.android.internal.logging.nano.MetricsProto; 22import com.android.internal.os.ProcessCpuTracker; 23import com.android.server.RescueParty; 24import com.android.server.Watchdog; 25 26import android.app.ActivityManager; 27import android.app.ActivityOptions; 28import android.app.ActivityThread; 29import android.app.AppOpsManager; 30import android.app.ApplicationErrorReport; 31import android.app.Dialog; 32import android.content.ActivityNotFoundException; 33import android.content.Context; 34import android.content.Intent; 35import android.content.pm.ApplicationInfo; 36import android.net.Uri; 37import android.os.Binder; 38import android.os.Message; 39import android.os.Process; 40import android.os.RemoteException; 41import android.os.SystemClock; 42import android.os.SystemProperties; 43import android.os.UserHandle; 44import android.provider.Settings; 45import android.util.ArrayMap; 46import android.util.ArraySet; 47import android.util.EventLog; 48import android.util.Log; 49import android.util.Slog; 50import android.util.SparseArray; 51import android.util.TimeUtils; 52 53import java.io.File; 54import java.io.FileDescriptor; 55import java.io.PrintWriter; 56import java.util.ArrayList; 57import java.util.Collections; 58import java.util.HashMap; 59import java.util.Set; 60 61import static com.android.server.Watchdog.NATIVE_STACKS_OF_INTEREST; 62import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ANR; 63import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; 64import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; 65import static com.android.server.am.ActivityManagerService.MY_PID; 66import static com.android.server.am.ActivityManagerService.SYSTEM_DEBUGGABLE; 67 68/** 69 * Controls error conditions in applications. 70 */ 71class AppErrors { 72 73 private static final String TAG = TAG_WITH_CLASS_NAME ? "AppErrors" : TAG_AM; 74 75 private final ActivityManagerService mService; 76 private final Context mContext; 77 78 private ArraySet<String> mAppsNotReportingCrashes; 79 80 /** 81 * The last time that various processes have crashed since they were last explicitly started. 82 */ 83 private final ProcessMap<Long> mProcessCrashTimes = new ProcessMap<>(); 84 85 /** 86 * The last time that various processes have crashed (not reset even when explicitly started). 87 */ 88 private final ProcessMap<Long> mProcessCrashTimesPersistent = new ProcessMap<>(); 89 90 /** 91 * Set of applications that we consider to be bad, and will reject 92 * incoming broadcasts from (which the user has no control over). 93 * Processes are added to this set when they have crashed twice within 94 * a minimum amount of time; they are removed from it when they are 95 * later restarted (hopefully due to some user action). The value is the 96 * time it was added to the list. 97 */ 98 private final ProcessMap<BadProcessInfo> mBadProcesses = new ProcessMap<>(); 99 100 101 AppErrors(Context context, ActivityManagerService service) { 102 context.assertRuntimeOverlayThemable(); 103 mService = service; 104 mContext = context; 105 } 106 107 boolean dumpLocked(FileDescriptor fd, PrintWriter pw, boolean needSep, 108 String dumpPackage) { 109 if (!mProcessCrashTimes.getMap().isEmpty()) { 110 boolean printed = false; 111 final long now = SystemClock.uptimeMillis(); 112 final ArrayMap<String, SparseArray<Long>> pmap = mProcessCrashTimes.getMap(); 113 final int processCount = pmap.size(); 114 for (int ip = 0; ip < processCount; ip++) { 115 final String pname = pmap.keyAt(ip); 116 final SparseArray<Long> uids = pmap.valueAt(ip); 117 final int uidCount = uids.size(); 118 for (int i = 0; i < uidCount; i++) { 119 final int puid = uids.keyAt(i); 120 final ProcessRecord r = mService.mProcessNames.get(pname, puid); 121 if (dumpPackage != null && (r == null 122 || !r.pkgList.containsKey(dumpPackage))) { 123 continue; 124 } 125 if (!printed) { 126 if (needSep) pw.println(); 127 needSep = true; 128 pw.println(" Time since processes crashed:"); 129 printed = true; 130 } 131 pw.print(" Process "); pw.print(pname); 132 pw.print(" uid "); pw.print(puid); 133 pw.print(": last crashed "); 134 TimeUtils.formatDuration(now-uids.valueAt(i), pw); 135 pw.println(" ago"); 136 } 137 } 138 } 139 140 if (!mBadProcesses.getMap().isEmpty()) { 141 boolean printed = false; 142 final ArrayMap<String, SparseArray<BadProcessInfo>> pmap = mBadProcesses.getMap(); 143 final int processCount = pmap.size(); 144 for (int ip = 0; ip < processCount; ip++) { 145 final String pname = pmap.keyAt(ip); 146 final SparseArray<BadProcessInfo> uids = pmap.valueAt(ip); 147 final int uidCount = uids.size(); 148 for (int i = 0; i < uidCount; i++) { 149 final int puid = uids.keyAt(i); 150 final ProcessRecord r = mService.mProcessNames.get(pname, puid); 151 if (dumpPackage != null && (r == null 152 || !r.pkgList.containsKey(dumpPackage))) { 153 continue; 154 } 155 if (!printed) { 156 if (needSep) pw.println(); 157 needSep = true; 158 pw.println(" Bad processes:"); 159 printed = true; 160 } 161 final BadProcessInfo info = uids.valueAt(i); 162 pw.print(" Bad process "); pw.print(pname); 163 pw.print(" uid "); pw.print(puid); 164 pw.print(": crashed at time "); pw.println(info.time); 165 if (info.shortMsg != null) { 166 pw.print(" Short msg: "); pw.println(info.shortMsg); 167 } 168 if (info.longMsg != null) { 169 pw.print(" Long msg: "); pw.println(info.longMsg); 170 } 171 if (info.stack != null) { 172 pw.println(" Stack:"); 173 int lastPos = 0; 174 for (int pos = 0; pos < info.stack.length(); pos++) { 175 if (info.stack.charAt(pos) == '\n') { 176 pw.print(" "); 177 pw.write(info.stack, lastPos, pos-lastPos); 178 pw.println(); 179 lastPos = pos+1; 180 } 181 } 182 if (lastPos < info.stack.length()) { 183 pw.print(" "); 184 pw.write(info.stack, lastPos, info.stack.length()-lastPos); 185 pw.println(); 186 } 187 } 188 } 189 } 190 } 191 return needSep; 192 } 193 194 boolean isBadProcessLocked(ApplicationInfo info) { 195 return mBadProcesses.get(info.processName, info.uid) != null; 196 } 197 198 void clearBadProcessLocked(ApplicationInfo info) { 199 mBadProcesses.remove(info.processName, info.uid); 200 } 201 202 void resetProcessCrashTimeLocked(ApplicationInfo info) { 203 mProcessCrashTimes.remove(info.processName, info.uid); 204 } 205 206 void resetProcessCrashTimeLocked(boolean resetEntireUser, int appId, int userId) { 207 final ArrayMap<String, SparseArray<Long>> pmap = mProcessCrashTimes.getMap(); 208 for (int ip = pmap.size() - 1; ip >= 0; ip--) { 209 SparseArray<Long> ba = pmap.valueAt(ip); 210 for (int i = ba.size() - 1; i >= 0; i--) { 211 boolean remove = false; 212 final int entUid = ba.keyAt(i); 213 if (!resetEntireUser) { 214 if (userId == UserHandle.USER_ALL) { 215 if (UserHandle.getAppId(entUid) == appId) { 216 remove = true; 217 } 218 } else { 219 if (entUid == UserHandle.getUid(userId, appId)) { 220 remove = true; 221 } 222 } 223 } else if (UserHandle.getUserId(entUid) == userId) { 224 remove = true; 225 } 226 if (remove) { 227 ba.removeAt(i); 228 } 229 } 230 if (ba.size() == 0) { 231 pmap.removeAt(ip); 232 } 233 } 234 } 235 236 void loadAppsNotReportingCrashesFromConfigLocked(String appsNotReportingCrashesConfig) { 237 if (appsNotReportingCrashesConfig != null) { 238 final String[] split = appsNotReportingCrashesConfig.split(","); 239 if (split.length > 0) { 240 mAppsNotReportingCrashes = new ArraySet<>(); 241 Collections.addAll(mAppsNotReportingCrashes, split); 242 } 243 } 244 } 245 246 void killAppAtUserRequestLocked(ProcessRecord app, Dialog fromDialog) { 247 app.crashing = false; 248 app.crashingReport = null; 249 app.notResponding = false; 250 app.notRespondingReport = null; 251 if (app.anrDialog == fromDialog) { 252 app.anrDialog = null; 253 } 254 if (app.waitDialog == fromDialog) { 255 app.waitDialog = null; 256 } 257 if (app.pid > 0 && app.pid != MY_PID) { 258 handleAppCrashLocked(app, "user-terminated" /*reason*/, 259 null /*shortMsg*/, null /*longMsg*/, null /*stackTrace*/, null /*data*/); 260 app.kill("user request after error", true); 261 } 262 } 263 264 /** 265 * Induce a crash in the given app. 266 * 267 * @param uid if nonnegative, the required matching uid of the target to crash 268 * @param initialPid fast-path match for the target to crash 269 * @param packageName fallback match if the stated pid is not found or doesn't match uid 270 * @param userId If nonnegative, required to identify a match by package name 271 * @param message 272 */ 273 void scheduleAppCrashLocked(int uid, int initialPid, String packageName, int userId, 274 String message) { 275 ProcessRecord proc = null; 276 277 // Figure out which process to kill. We don't trust that initialPid 278 // still has any relation to current pids, so must scan through the 279 // list. 280 281 synchronized (mService.mPidsSelfLocked) { 282 for (int i=0; i<mService.mPidsSelfLocked.size(); i++) { 283 ProcessRecord p = mService.mPidsSelfLocked.valueAt(i); 284 if (uid >= 0 && p.uid != uid) { 285 continue; 286 } 287 if (p.pid == initialPid) { 288 proc = p; 289 break; 290 } 291 if (p.pkgList.containsKey(packageName) 292 && (userId < 0 || p.userId == userId)) { 293 proc = p; 294 } 295 } 296 } 297 298 if (proc == null) { 299 Slog.w(TAG, "crashApplication: nothing for uid=" + uid 300 + " initialPid=" + initialPid 301 + " packageName=" + packageName 302 + " userId=" + userId); 303 return; 304 } 305 306 proc.scheduleCrash(message); 307 } 308 309 /** 310 * Bring up the "unexpected error" dialog box for a crashing app. 311 * Deal with edge cases (intercepts from instrumented applications, 312 * ActivityController, error intent receivers, that sort of thing). 313 * @param r the application crashing 314 * @param crashInfo describing the failure 315 */ 316 void crashApplication(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo) { 317 final int callingPid = Binder.getCallingPid(); 318 final int callingUid = Binder.getCallingUid(); 319 320 final long origId = Binder.clearCallingIdentity(); 321 try { 322 crashApplicationInner(r, crashInfo, callingPid, callingUid); 323 } finally { 324 Binder.restoreCallingIdentity(origId); 325 } 326 } 327 328 void crashApplicationInner(ProcessRecord r, ApplicationErrorReport.CrashInfo crashInfo, 329 int callingPid, int callingUid) { 330 long timeMillis = System.currentTimeMillis(); 331 String shortMsg = crashInfo.exceptionClassName; 332 String longMsg = crashInfo.exceptionMessage; 333 String stackTrace = crashInfo.stackTrace; 334 if (shortMsg != null && longMsg != null) { 335 longMsg = shortMsg + ": " + longMsg; 336 } else if (shortMsg != null) { 337 longMsg = shortMsg; 338 } 339 340 // If a persistent app is stuck in a crash loop, the device isn't very 341 // usable, so we want to consider sending out a rescue party. 342 if (r != null && r.persistent) { 343 RescueParty.notePersistentAppCrash(mContext, r.uid); 344 } 345 346 AppErrorResult result = new AppErrorResult(); 347 TaskRecord task; 348 synchronized (mService) { 349 /** 350 * If crash is handled by instance of {@link android.app.IActivityController}, 351 * finish now and don't show the app error dialog. 352 */ 353 if (handleAppCrashInActivityController(r, crashInfo, shortMsg, longMsg, stackTrace, 354 timeMillis, callingPid, callingUid)) { 355 return; 356 } 357 358 /** 359 * If this process was running instrumentation, finish now - it will be handled in 360 * {@link ActivityManagerService#handleAppDiedLocked}. 361 */ 362 if (r != null && r.instr != null) { 363 return; 364 } 365 366 // Log crash in battery stats. 367 if (r != null) { 368 mService.mBatteryStatsService.noteProcessCrash(r.processName, r.uid); 369 } 370 371 AppErrorDialog.Data data = new AppErrorDialog.Data(); 372 data.result = result; 373 data.proc = r; 374 375 // If we can't identify the process or it's already exceeded its crash quota, 376 // quit right away without showing a crash dialog. 377 if (r == null || !makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace, data)) { 378 return; 379 } 380 381 final Message msg = Message.obtain(); 382 msg.what = ActivityManagerService.SHOW_ERROR_UI_MSG; 383 384 task = data.task; 385 msg.obj = data; 386 mService.mUiHandler.sendMessage(msg); 387 } 388 389 int res = result.get(); 390 391 Intent appErrorIntent = null; 392 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_CRASH, res); 393 if (res == AppErrorDialog.TIMEOUT || res == AppErrorDialog.CANCEL) { 394 res = AppErrorDialog.FORCE_QUIT; 395 } 396 synchronized (mService) { 397 if (res == AppErrorDialog.MUTE) { 398 stopReportingCrashesLocked(r); 399 } 400 if (res == AppErrorDialog.RESTART) { 401 mService.removeProcessLocked(r, false, true, "crash"); 402 if (task != null) { 403 try { 404 mService.startActivityFromRecents(task.taskId, 405 ActivityOptions.makeBasic().toBundle()); 406 } catch (IllegalArgumentException e) { 407 // Hmm, that didn't work, app might have crashed before creating a 408 // recents entry. Let's see if we have a safe-to-restart intent. 409 final Set<String> cats = task.intent.getCategories(); 410 if (cats != null && cats.contains(Intent.CATEGORY_LAUNCHER)) { 411 mService.getActivityStartController().startActivityInPackage( 412 task.mCallingUid, callingPid, callingUid, task.mCallingPackage, 413 task.intent, null, null, null, 0, 0, 414 new SafeActivityOptions(ActivityOptions.makeBasic()), 415 task.userId, null, 416 "AppErrors"); 417 } 418 } 419 } 420 } 421 if (res == AppErrorDialog.FORCE_QUIT) { 422 long orig = Binder.clearCallingIdentity(); 423 try { 424 // Kill it with fire! 425 mService.mStackSupervisor.handleAppCrashLocked(r); 426 if (!r.persistent) { 427 mService.removeProcessLocked(r, false, false, "crash"); 428 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked(); 429 } 430 } finally { 431 Binder.restoreCallingIdentity(orig); 432 } 433 } 434 if (res == AppErrorDialog.APP_INFO) { 435 appErrorIntent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); 436 appErrorIntent.setData(Uri.parse("package:" + r.info.packageName)); 437 appErrorIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 438 } 439 if (res == AppErrorDialog.FORCE_QUIT_AND_REPORT) { 440 appErrorIntent = createAppErrorIntentLocked(r, timeMillis, crashInfo); 441 } 442 if (r != null && !r.isolated && res != AppErrorDialog.RESTART) { 443 // XXX Can't keep track of crash time for isolated processes, 444 // since they don't have a persistent identity. 445 mProcessCrashTimes.put(r.info.processName, r.uid, 446 SystemClock.uptimeMillis()); 447 } 448 } 449 450 if (appErrorIntent != null) { 451 try { 452 mContext.startActivityAsUser(appErrorIntent, new UserHandle(r.userId)); 453 } catch (ActivityNotFoundException e) { 454 Slog.w(TAG, "bug report receiver dissappeared", e); 455 } 456 } 457 } 458 459 private boolean handleAppCrashInActivityController(ProcessRecord r, 460 ApplicationErrorReport.CrashInfo crashInfo, 461 String shortMsg, String longMsg, 462 String stackTrace, long timeMillis, 463 int callingPid, int callingUid) { 464 if (mService.mController == null) { 465 return false; 466 } 467 468 try { 469 String name = r != null ? r.processName : null; 470 int pid = r != null ? r.pid : callingPid; 471 int uid = r != null ? r.info.uid : callingUid; 472 if (!mService.mController.appCrashed(name, pid, 473 shortMsg, longMsg, timeMillis, crashInfo.stackTrace)) { 474 if ("1".equals(SystemProperties.get(SYSTEM_DEBUGGABLE, "0")) 475 && "Native crash".equals(crashInfo.exceptionClassName)) { 476 Slog.w(TAG, "Skip killing native crashed app " + name 477 + "(" + pid + ") during testing"); 478 } else { 479 Slog.w(TAG, "Force-killing crashed app " + name 480 + " at watcher's request"); 481 if (r != null) { 482 if (!makeAppCrashingLocked(r, shortMsg, longMsg, stackTrace, null)) 483 { 484 r.kill("crash", true); 485 } 486 } else { 487 // Huh. 488 Process.killProcess(pid); 489 ActivityManagerService.killProcessGroup(uid, pid); 490 } 491 } 492 return true; 493 } 494 } catch (RemoteException e) { 495 mService.mController = null; 496 Watchdog.getInstance().setActivityController(null); 497 } 498 return false; 499 } 500 501 private boolean makeAppCrashingLocked(ProcessRecord app, 502 String shortMsg, String longMsg, String stackTrace, AppErrorDialog.Data data) { 503 app.crashing = true; 504 app.crashingReport = generateProcessError(app, 505 ActivityManager.ProcessErrorStateInfo.CRASHED, null, shortMsg, longMsg, stackTrace); 506 startAppProblemLocked(app); 507 app.stopFreezingAllLocked(); 508 return handleAppCrashLocked(app, "force-crash" /*reason*/, shortMsg, longMsg, stackTrace, 509 data); 510 } 511 512 void startAppProblemLocked(ProcessRecord app) { 513 // If this app is not running under the current user, then we 514 // can't give it a report button because that would require 515 // launching the report UI under a different user. 516 app.errorReportReceiver = null; 517 518 for (int userId : mService.mUserController.getCurrentProfileIds()) { 519 if (app.userId == userId) { 520 app.errorReportReceiver = ApplicationErrorReport.getErrorReportReceiver( 521 mContext, app.info.packageName, app.info.flags); 522 } 523 } 524 mService.skipCurrentReceiverLocked(app); 525 } 526 527 /** 528 * Generate a process error record, suitable for attachment to a ProcessRecord. 529 * 530 * @param app The ProcessRecord in which the error occurred. 531 * @param condition Crashing, Application Not Responding, etc. Values are defined in 532 * ActivityManager.ProcessErrorStateInfo 533 * @param activity The activity associated with the crash, if known. 534 * @param shortMsg Short message describing the crash. 535 * @param longMsg Long message describing the crash. 536 * @param stackTrace Full crash stack trace, may be null. 537 * 538 * @return Returns a fully-formed ProcessErrorStateInfo record. 539 */ 540 private ActivityManager.ProcessErrorStateInfo generateProcessError(ProcessRecord app, 541 int condition, String activity, String shortMsg, String longMsg, String stackTrace) { 542 ActivityManager.ProcessErrorStateInfo report = new ActivityManager.ProcessErrorStateInfo(); 543 544 report.condition = condition; 545 report.processName = app.processName; 546 report.pid = app.pid; 547 report.uid = app.info.uid; 548 report.tag = activity; 549 report.shortMsg = shortMsg; 550 report.longMsg = longMsg; 551 report.stackTrace = stackTrace; 552 553 return report; 554 } 555 556 Intent createAppErrorIntentLocked(ProcessRecord r, 557 long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) { 558 ApplicationErrorReport report = createAppErrorReportLocked(r, timeMillis, crashInfo); 559 if (report == null) { 560 return null; 561 } 562 Intent result = new Intent(Intent.ACTION_APP_ERROR); 563 result.setComponent(r.errorReportReceiver); 564 result.putExtra(Intent.EXTRA_BUG_REPORT, report); 565 result.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 566 return result; 567 } 568 569 private ApplicationErrorReport createAppErrorReportLocked(ProcessRecord r, 570 long timeMillis, ApplicationErrorReport.CrashInfo crashInfo) { 571 if (r.errorReportReceiver == null) { 572 return null; 573 } 574 575 if (!r.crashing && !r.notResponding && !r.forceCrashReport) { 576 return null; 577 } 578 579 ApplicationErrorReport report = new ApplicationErrorReport(); 580 report.packageName = r.info.packageName; 581 report.installerPackageName = r.errorReportReceiver.getPackageName(); 582 report.processName = r.processName; 583 report.time = timeMillis; 584 report.systemApp = (r.info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 585 586 if (r.crashing || r.forceCrashReport) { 587 report.type = ApplicationErrorReport.TYPE_CRASH; 588 report.crashInfo = crashInfo; 589 } else if (r.notResponding) { 590 report.type = ApplicationErrorReport.TYPE_ANR; 591 report.anrInfo = new ApplicationErrorReport.AnrInfo(); 592 593 report.anrInfo.activity = r.notRespondingReport.tag; 594 report.anrInfo.cause = r.notRespondingReport.shortMsg; 595 report.anrInfo.info = r.notRespondingReport.longMsg; 596 } 597 598 return report; 599 } 600 601 boolean handleAppCrashLocked(ProcessRecord app, String reason, 602 String shortMsg, String longMsg, String stackTrace, AppErrorDialog.Data data) { 603 final long now = SystemClock.uptimeMillis(); 604 final boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(), 605 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0; 606 607 final boolean procIsBoundForeground = 608 (app.curProcState == ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE); 609 610 Long crashTime; 611 Long crashTimePersistent; 612 boolean tryAgain = false; 613 614 if (!app.isolated) { 615 crashTime = mProcessCrashTimes.get(app.info.processName, app.uid); 616 crashTimePersistent = mProcessCrashTimesPersistent.get(app.info.processName, app.uid); 617 } else { 618 crashTime = crashTimePersistent = null; 619 } 620 621 // Bump up the crash count of any services currently running in the proc. 622 for (int i = app.services.size() - 1; i >= 0; i--) { 623 // Any services running in the application need to be placed 624 // back in the pending list. 625 ServiceRecord sr = app.services.valueAt(i); 626 // If the service was restarted a while ago, then reset crash count, else increment it. 627 if (now > sr.restartTime + ProcessList.MIN_CRASH_INTERVAL) { 628 sr.crashCount = 1; 629 } else { 630 sr.crashCount++; 631 } 632 // Allow restarting for started or bound foreground services that are crashing. 633 // This includes wallpapers. 634 if (sr.crashCount < mService.mConstants.BOUND_SERVICE_MAX_CRASH_RETRY 635 && (sr.isForeground || procIsBoundForeground)) { 636 tryAgain = true; 637 } 638 } 639 640 if (crashTime != null && now < crashTime + ProcessList.MIN_CRASH_INTERVAL) { 641 // The process crashed again very quickly. If it was a bound foreground service, let's 642 // try to restart again in a while, otherwise the process loses! 643 Slog.w(TAG, "Process " + app.info.processName 644 + " has crashed too many times: killing!"); 645 EventLog.writeEvent(EventLogTags.AM_PROCESS_CRASHED_TOO_MUCH, 646 app.userId, app.info.processName, app.uid); 647 mService.mStackSupervisor.handleAppCrashLocked(app); 648 if (!app.persistent) { 649 // We don't want to start this process again until the user 650 // explicitly does so... but for persistent process, we really 651 // need to keep it running. If a persistent process is actually 652 // repeatedly crashing, then badness for everyone. 653 EventLog.writeEvent(EventLogTags.AM_PROC_BAD, app.userId, app.uid, 654 app.info.processName); 655 if (!app.isolated) { 656 // XXX We don't have a way to mark isolated processes 657 // as bad, since they don't have a peristent identity. 658 mBadProcesses.put(app.info.processName, app.uid, 659 new BadProcessInfo(now, shortMsg, longMsg, stackTrace)); 660 mProcessCrashTimes.remove(app.info.processName, app.uid); 661 } 662 app.bad = true; 663 app.removed = true; 664 // Don't let services in this process be restarted and potentially 665 // annoy the user repeatedly. Unless it is persistent, since those 666 // processes run critical code. 667 mService.removeProcessLocked(app, false, tryAgain, "crash"); 668 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked(); 669 if (!showBackground) { 670 return false; 671 } 672 } 673 mService.mStackSupervisor.resumeFocusedStackTopActivityLocked(); 674 } else { 675 TaskRecord affectedTask = 676 mService.mStackSupervisor.finishTopRunningActivityLocked(app, reason); 677 if (data != null) { 678 data.task = affectedTask; 679 } 680 if (data != null && crashTimePersistent != null 681 && now < crashTimePersistent + ProcessList.MIN_CRASH_INTERVAL) { 682 data.repeating = true; 683 } 684 } 685 686 if (data != null && tryAgain) { 687 data.isRestartableForService = true; 688 } 689 690 // If the crashing process is what we consider to be the "home process" and it has been 691 // replaced by a third-party app, clear the package preferred activities from packages 692 // with a home activity running in the process to prevent a repeatedly crashing app 693 // from blocking the user to manually clear the list. 694 final ArrayList<ActivityRecord> activities = app.activities; 695 if (app == mService.mHomeProcess && activities.size() > 0 696 && (mService.mHomeProcess.info.flags & ApplicationInfo.FLAG_SYSTEM) == 0) { 697 for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) { 698 final ActivityRecord r = activities.get(activityNdx); 699 if (r.isActivityTypeHome()) { 700 Log.i(TAG, "Clearing package preferred activities from " + r.packageName); 701 try { 702 ActivityThread.getPackageManager() 703 .clearPackagePreferredActivities(r.packageName); 704 } catch (RemoteException c) { 705 // pm is in same process, this will never happen. 706 } 707 } 708 } 709 } 710 711 if (!app.isolated) { 712 // XXX Can't keep track of crash times for isolated processes, 713 // because they don't have a persistent identity. 714 mProcessCrashTimes.put(app.info.processName, app.uid, now); 715 mProcessCrashTimesPersistent.put(app.info.processName, app.uid, now); 716 } 717 718 if (app.crashHandler != null) mService.mHandler.post(app.crashHandler); 719 return true; 720 } 721 722 void handleShowAppErrorUi(Message msg) { 723 AppErrorDialog.Data data = (AppErrorDialog.Data) msg.obj; 724 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(), 725 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0; 726 synchronized (mService) { 727 ProcessRecord proc = data.proc; 728 AppErrorResult res = data.result; 729 if (proc != null && proc.crashDialog != null) { 730 Slog.e(TAG, "App already has crash dialog: " + proc); 731 if (res != null) { 732 res.set(AppErrorDialog.ALREADY_SHOWING); 733 } 734 return; 735 } 736 boolean isBackground = (UserHandle.getAppId(proc.uid) 737 >= Process.FIRST_APPLICATION_UID 738 && proc.pid != MY_PID); 739 for (int userId : mService.mUserController.getCurrentProfileIds()) { 740 isBackground &= (proc.userId != userId); 741 } 742 if (isBackground && !showBackground) { 743 Slog.w(TAG, "Skipping crash dialog of " + proc + ": background"); 744 if (res != null) { 745 res.set(AppErrorDialog.BACKGROUND_USER); 746 } 747 return; 748 } 749 final boolean showFirstCrash = Settings.Global.getInt( 750 mContext.getContentResolver(), 751 Settings.Global.SHOW_FIRST_CRASH_DIALOG, 0) != 0; 752 final boolean showFirstCrashDevOption = Settings.Secure.getIntForUser( 753 mContext.getContentResolver(), 754 Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION, 755 0, 756 mService.mUserController.getCurrentUserId()) != 0; 757 final boolean crashSilenced = mAppsNotReportingCrashes != null && 758 mAppsNotReportingCrashes.contains(proc.info.packageName); 759 if ((mService.canShowErrorDialogs() || showBackground) && !crashSilenced 760 && (showFirstCrash || showFirstCrashDevOption || data.repeating)) { 761 proc.crashDialog = new AppErrorDialog(mContext, mService, data); 762 } else { 763 // The device is asleep, so just pretend that the user 764 // saw a crash dialog and hit "force quit". 765 if (res != null) { 766 res.set(AppErrorDialog.CANT_SHOW); 767 } 768 } 769 } 770 // If we've created a crash dialog, show it without the lock held 771 if(data.proc.crashDialog != null) { 772 Slog.i(TAG, "Showing crash dialog for package " + data.proc.info.packageName 773 + " u" + data.proc.userId); 774 data.proc.crashDialog.show(); 775 } 776 } 777 778 void stopReportingCrashesLocked(ProcessRecord proc) { 779 if (mAppsNotReportingCrashes == null) { 780 mAppsNotReportingCrashes = new ArraySet<>(); 781 } 782 mAppsNotReportingCrashes.add(proc.info.packageName); 783 } 784 785 static boolean isInterestingForBackgroundTraces(ProcessRecord app) { 786 // The system_server is always considered interesting. 787 if (app.pid == MY_PID) { 788 return true; 789 } 790 791 // A package is considered interesting if any of the following is true : 792 // 793 // - It's displaying an activity. 794 // - It's the SystemUI. 795 // - It has an overlay or a top UI visible. 796 // 797 // NOTE: The check whether a given ProcessRecord belongs to the systemui 798 // process is a bit of a kludge, but the same pattern seems repeated at 799 // several places in the system server. 800 return app.isInterestingToUserLocked() || 801 (app.info != null && "com.android.systemui".equals(app.info.packageName)) || 802 (app.hasTopUi || app.hasOverlayUi); 803 } 804 805 final void appNotResponding(ProcessRecord app, ActivityRecord activity, 806 ActivityRecord parent, boolean aboveSystem, final String annotation) { 807 ArrayList<Integer> firstPids = new ArrayList<Integer>(5); 808 SparseArray<Boolean> lastPids = new SparseArray<Boolean>(20); 809 810 if (mService.mController != null) { 811 try { 812 // 0 == continue, -1 = kill process immediately 813 int res = mService.mController.appEarlyNotResponding( 814 app.processName, app.pid, annotation); 815 if (res < 0 && app.pid != MY_PID) { 816 app.kill("anr", true); 817 } 818 } catch (RemoteException e) { 819 mService.mController = null; 820 Watchdog.getInstance().setActivityController(null); 821 } 822 } 823 824 long anrTime = SystemClock.uptimeMillis(); 825 if (ActivityManagerService.MONITOR_CPU_USAGE) { 826 mService.updateCpuStatsNow(); 827 } 828 829 // Unless configured otherwise, swallow ANRs in background processes & kill the process. 830 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(), 831 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0; 832 833 boolean isSilentANR; 834 835 synchronized (mService) { 836 // PowerManager.reboot() can block for a long time, so ignore ANRs while shutting down. 837 if (mService.mShuttingDown) { 838 Slog.i(TAG, "During shutdown skipping ANR: " + app + " " + annotation); 839 return; 840 } else if (app.notResponding) { 841 Slog.i(TAG, "Skipping duplicate ANR: " + app + " " + annotation); 842 return; 843 } else if (app.crashing) { 844 Slog.i(TAG, "Crashing app skipping ANR: " + app + " " + annotation); 845 return; 846 } else if (app.killedByAm) { 847 Slog.i(TAG, "App already killed by AM skipping ANR: " + app + " " + annotation); 848 return; 849 } else if (app.killed) { 850 Slog.i(TAG, "Skipping died app ANR: " + app + " " + annotation); 851 return; 852 } 853 854 // In case we come through here for the same app before completing 855 // this one, mark as anring now so we will bail out. 856 app.notResponding = true; 857 858 // Log the ANR to the event log. 859 EventLog.writeEvent(EventLogTags.AM_ANR, app.userId, app.pid, 860 app.processName, app.info.flags, annotation); 861 862 // Dump thread traces as quickly as we can, starting with "interesting" processes. 863 firstPids.add(app.pid); 864 865 // Don't dump other PIDs if it's a background ANR 866 isSilentANR = !showBackground && !isInterestingForBackgroundTraces(app); 867 if (!isSilentANR) { 868 int parentPid = app.pid; 869 if (parent != null && parent.app != null && parent.app.pid > 0) { 870 parentPid = parent.app.pid; 871 } 872 if (parentPid != app.pid) firstPids.add(parentPid); 873 874 if (MY_PID != app.pid && MY_PID != parentPid) firstPids.add(MY_PID); 875 876 for (int i = mService.mLruProcesses.size() - 1; i >= 0; i--) { 877 ProcessRecord r = mService.mLruProcesses.get(i); 878 if (r != null && r.thread != null) { 879 int pid = r.pid; 880 if (pid > 0 && pid != app.pid && pid != parentPid && pid != MY_PID) { 881 if (r.persistent) { 882 firstPids.add(pid); 883 if (DEBUG_ANR) Slog.i(TAG, "Adding persistent proc: " + r); 884 } else if (r.treatLikeActivity) { 885 firstPids.add(pid); 886 if (DEBUG_ANR) Slog.i(TAG, "Adding likely IME: " + r); 887 } else { 888 lastPids.put(pid, Boolean.TRUE); 889 if (DEBUG_ANR) Slog.i(TAG, "Adding ANR proc: " + r); 890 } 891 } 892 } 893 } 894 } 895 } 896 897 // Log the ANR to the main log. 898 StringBuilder info = new StringBuilder(); 899 info.setLength(0); 900 info.append("ANR in ").append(app.processName); 901 if (activity != null && activity.shortComponentName != null) { 902 info.append(" (").append(activity.shortComponentName).append(")"); 903 } 904 info.append("\n"); 905 info.append("PID: ").append(app.pid).append("\n"); 906 if (annotation != null) { 907 info.append("Reason: ").append(annotation).append("\n"); 908 } 909 if (parent != null && parent != activity) { 910 info.append("Parent: ").append(parent.shortComponentName).append("\n"); 911 } 912 913 ProcessCpuTracker processCpuTracker = new ProcessCpuTracker(true); 914 915 // don't dump native PIDs for background ANRs unless it is the process of interest 916 String[] nativeProcs = null; 917 if (isSilentANR) { 918 for (int i = 0; i < NATIVE_STACKS_OF_INTEREST.length; i++) { 919 if (NATIVE_STACKS_OF_INTEREST[i].equals(app.processName)) { 920 nativeProcs = new String[] { app.processName }; 921 break; 922 } 923 } 924 } else { 925 nativeProcs = NATIVE_STACKS_OF_INTEREST; 926 } 927 928 int[] pids = nativeProcs == null ? null : Process.getPidsForCommands(nativeProcs); 929 ArrayList<Integer> nativePids = null; 930 931 if (pids != null) { 932 nativePids = new ArrayList<Integer>(pids.length); 933 for (int i : pids) { 934 nativePids.add(i); 935 } 936 } 937 938 // For background ANRs, don't pass the ProcessCpuTracker to 939 // avoid spending 1/2 second collecting stats to rank lastPids. 940 File tracesFile = ActivityManagerService.dumpStackTraces( 941 true, firstPids, 942 (isSilentANR) ? null : processCpuTracker, 943 (isSilentANR) ? null : lastPids, 944 nativePids); 945 946 String cpuInfo = null; 947 if (ActivityManagerService.MONITOR_CPU_USAGE) { 948 mService.updateCpuStatsNow(); 949 synchronized (mService.mProcessCpuTracker) { 950 cpuInfo = mService.mProcessCpuTracker.printCurrentState(anrTime); 951 } 952 info.append(processCpuTracker.printCurrentLoad()); 953 info.append(cpuInfo); 954 } 955 956 info.append(processCpuTracker.printCurrentState(anrTime)); 957 958 Slog.e(TAG, info.toString()); 959 if (tracesFile == null) { 960 // There is no trace file, so dump (only) the alleged culprit's threads to the log 961 Process.sendSignal(app.pid, Process.SIGNAL_QUIT); 962 } 963 964 mService.addErrorToDropBox("anr", app, app.processName, activity, parent, annotation, 965 cpuInfo, tracesFile, null); 966 967 if (mService.mController != null) { 968 try { 969 // 0 == show dialog, 1 = keep waiting, -1 = kill process immediately 970 int res = mService.mController.appNotResponding( 971 app.processName, app.pid, info.toString()); 972 if (res != 0) { 973 if (res < 0 && app.pid != MY_PID) { 974 app.kill("anr", true); 975 } else { 976 synchronized (mService) { 977 mService.mServices.scheduleServiceTimeoutLocked(app); 978 } 979 } 980 return; 981 } 982 } catch (RemoteException e) { 983 mService.mController = null; 984 Watchdog.getInstance().setActivityController(null); 985 } 986 } 987 988 synchronized (mService) { 989 mService.mBatteryStatsService.noteProcessAnr(app.processName, app.uid); 990 991 if (isSilentANR) { 992 app.kill("bg anr", true); 993 return; 994 } 995 996 // Set the app's notResponding state, and look up the errorReportReceiver 997 makeAppNotRespondingLocked(app, 998 activity != null ? activity.shortComponentName : null, 999 annotation != null ? "ANR " + annotation : "ANR", 1000 info.toString()); 1001 1002 // Bring up the infamous App Not Responding dialog 1003 Message msg = Message.obtain(); 1004 HashMap<String, Object> map = new HashMap<String, Object>(); 1005 msg.what = ActivityManagerService.SHOW_NOT_RESPONDING_UI_MSG; 1006 msg.obj = map; 1007 msg.arg1 = aboveSystem ? 1 : 0; 1008 map.put("app", app); 1009 if (activity != null) { 1010 map.put("activity", activity); 1011 } 1012 1013 mService.mUiHandler.sendMessage(msg); 1014 } 1015 } 1016 1017 private void makeAppNotRespondingLocked(ProcessRecord app, 1018 String activity, String shortMsg, String longMsg) { 1019 app.notResponding = true; 1020 app.notRespondingReport = generateProcessError(app, 1021 ActivityManager.ProcessErrorStateInfo.NOT_RESPONDING, 1022 activity, shortMsg, longMsg, null); 1023 startAppProblemLocked(app); 1024 app.stopFreezingAllLocked(); 1025 } 1026 1027 void handleShowAnrUi(Message msg) { 1028 Dialog d = null; 1029 synchronized (mService) { 1030 HashMap<String, Object> data = (HashMap<String, Object>) msg.obj; 1031 ProcessRecord proc = (ProcessRecord)data.get("app"); 1032 if (proc != null && proc.anrDialog != null) { 1033 Slog.e(TAG, "App already has anr dialog: " + proc); 1034 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_ANR, 1035 AppNotRespondingDialog.ALREADY_SHOWING); 1036 return; 1037 } 1038 1039 Intent intent = new Intent("android.intent.action.ANR"); 1040 if (!mService.mProcessesReady) { 1041 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY 1042 | Intent.FLAG_RECEIVER_FOREGROUND); 1043 } 1044 mService.broadcastIntentLocked(null, null, intent, 1045 null, null, 0, null, null, null, AppOpsManager.OP_NONE, 1046 null, false, false, MY_PID, Process.SYSTEM_UID, 0 /* TODO: Verify */); 1047 1048 boolean showBackground = Settings.Secure.getInt(mContext.getContentResolver(), 1049 Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0; 1050 if (mService.canShowErrorDialogs() || showBackground) { 1051 d = new AppNotRespondingDialog(mService, 1052 mContext, proc, (ActivityRecord)data.get("activity"), 1053 msg.arg1 != 0); 1054 proc.anrDialog = d; 1055 } else { 1056 MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_APP_ANR, 1057 AppNotRespondingDialog.CANT_SHOW); 1058 // Just kill the app if there is no dialog to be shown. 1059 mService.killAppAtUsersRequest(proc, null); 1060 } 1061 } 1062 // If we've created a crash dialog, show it without the lock held 1063 if (d != null) { 1064 d.show(); 1065 } 1066 } 1067 1068 /** 1069 * Information about a process that is currently marked as bad. 1070 */ 1071 static final class BadProcessInfo { 1072 BadProcessInfo(long time, String shortMsg, String longMsg, String stack) { 1073 this.time = time; 1074 this.shortMsg = shortMsg; 1075 this.longMsg = longMsg; 1076 this.stack = stack; 1077 } 1078 1079 final long time; 1080 final String shortMsg; 1081 final String longMsg; 1082 final String stack; 1083 } 1084 1085} 1086