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