Add drop box reports of low memory. (e4d4fbc8) · Commits · e / os / android_frameworks_base

cmds/am/src/com/android/commands/am/Am.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -109,6 +109,10 @@ public class Am {
		runStartService();
		} else if (op.equals("force-stop")) {
		runForceStop();
		} else if (op.equals("kill")) {
		runKill();
		} else if (op.equals("kill-all")) {
		runKillAll();
		} else if (op.equals("instrument")) {
		runInstrument();
		} else if (op.equals("broadcast")) {
		@@ -484,6 +488,14 @@ public class Am {
		mAm.forceStopPackage(nextArgRequired());
		}

		private void runKill() throws Exception {
		mAm.killBackgroundProcesses(nextArgRequired());
		}

		private void runKillAll() throws Exception {
		mAm.killAllBackgroundProcesses();
		}

		private void sendBroadcast() throws Exception {
		Intent intent = makeIntent();
		IntentReceiver receiver = new IntentReceiver();
		@@ -1179,6 +1191,8 @@ public class Am {
		" [--R COUNT] [-S] <INTENT>\n" +
		" am startservice <INTENT>\n" +
		" am force-stop <PACKAGE>\n" +
		" am kill <PACKAGE>\n" +
		" am kill-all\n" +
		" am broadcast <INTENT>\n" +
		" am instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w]\n" +
		" [--no-window-animation] <COMPONENT>\n" +
		@@ -1202,6 +1216,12 @@ public class Am {
		"\n" +
		"am force-stop: force stop everything associated with <PACKAGE>.\n" +
		"\n" +
		"am kill: Kill all processes associated with <PACKAGE>. Only kills.\n" +
		" processes that are safe to kill -- that is, will not impact the user\n" +
		" experience.\n" +
		"\n" +
		"am kill-all: Kill all background processes.\n" +
		"\n" +
		"am broadcast: send a broadcast Intent.\n" +
		"\n" +
		"am instrument: start an Instrumentation. Typically this target <COMPONENT>\n" +

core/java/android/app/ActivityManagerNative.java

+19 −2

Original line number	Diff line number	Diff line
		@@ -1093,6 +1093,13 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
		return true;
		}

		case KILL_ALL_BACKGROUND_PROCESSES_TRANSACTION: {
		data.enforceInterface(IActivityManager.descriptor);
		killAllBackgroundProcesses();
		reply.writeNoException();
		return true;
		}

		case FORCE_STOP_PACKAGE_TRANSACTION: {
		data.enforceInterface(IActivityManager.descriptor);
		String packageName = data.readString();
		@@ -2918,6 +2925,16 @@ class ActivityManagerProxy implements IActivityManager
		reply.recycle();
		}

		public void killAllBackgroundProcesses() throws RemoteException {
		Parcel data = Parcel.obtain();
		Parcel reply = Parcel.obtain();
		data.writeInterfaceToken(IActivityManager.descriptor);
		mRemote.transact(KILL_ALL_BACKGROUND_PROCESSES_TRANSACTION, data, reply, 0);
		reply.readException();
		data.recycle();
		reply.recycle();
		}

		public void forceStopPackage(String packageName) throws RemoteException {
		Parcel data = Parcel.obtain();
		Parcel reply = Parcel.obtain();

core/java/android/app/IActivityManager.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -234,6 +234,7 @@ public interface IActivityManager extends IInterface {
		public void getMemoryInfo(ActivityManager.MemoryInfo outInfo) throws RemoteException;

		public void killBackgroundProcesses(final String packageName) throws RemoteException;
		public void killAllBackgroundProcesses() throws RemoteException;
		public void forceStopPackage(final String packageName) throws RemoteException;

		// Note: probably don't want to allow applications access to these.
		@@ -605,4 +606,5 @@ public interface IActivityManager extends IInterface {
		int GET_PROCESS_PSS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+136;
		int SHOW_BOOT_MESSAGE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+137;
		int DISMISS_KEYGUARD_ON_NEXT_ACTIVITY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+138;
		int KILL_ALL_BACKGROUND_PROCESSES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+139;
		}

services/java/com/android/server/am/ActivityManagerService.java

+84 −20

Original line number	Diff line number	Diff line
		@@ -1220,6 +1220,8 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		Thread thread = new Thread() {
		@Override public void run() {
		StringBuilder dropBuilder = new StringBuilder(1024);
		StringBuilder logBuilder = new StringBuilder(1024);
		try {
		java.lang.Process proc = Runtime.getRuntime().exec(new String[] {
		"procrank", });
		@@ -1233,16 +1235,29 @@ public final class ActivityManagerService extends ActivityManagerNative
		break;
		}
		if (line.length() > 0) {
		Slog.i(TAG, line);
		logBuilder.append(line);
		logBuilder.append('\n');
		}
		dropBuilder.append(line);
		dropBuilder.append('\n');
		}
		converter.close();
		} catch (IOException e) {
		}
		StringWriter sw = new StringWriter();
		PrintWriter pw = new PrintWriter(sw);
		dumpApplicationMemoryUsage(null, pw, " ", new String[] { }, true);
		Slog.i(TAG, sw.toString());
		StringWriter catSw = new StringWriter();
		PrintWriter catPw = new PrintWriter(catSw);
		dumpApplicationMemoryUsage(null, pw, " ", new String[] { }, true, catPw);
		String memUsage = sw.toString();
		dropBuilder.append('\n');
		dropBuilder.append(memUsage);
		dropBuilder.append(catSw.toString());
		logBuilder.append(memUsage);
		addErrorToDropBox("watchdog", null, "system_server", null,
		null, "Low on memory -- no more background processes",
		dropBuilder.toString(), null, null);
		Slog.i(TAG, logBuilder.toString());
		synchronized (ActivityManagerService.this) {
		long now = SystemClock.uptimeMillis();
		if (mLastMemUsageReportTime < now) {
		@@ -1394,7 +1409,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		return;
		}

		mActivityManagerService.dumpApplicationMemoryUsage(fd, pw, " ", args, false);
		mActivityManagerService.dumpApplicationMemoryUsage(fd, pw, " ", args, false, null);
		}
		}

		@@ -3192,7 +3207,49 @@ public final class ActivityManagerService extends ActivityManagerNative
		return;
		}
		killPackageProcessesLocked(packageName, pkgUid,
		ProcessList.SERVICE_ADJ, false, true, true, false);
		ProcessList.SERVICE_ADJ, false, true, true, false, "kill background");
		}
		} finally {
		Binder.restoreCallingIdentity(callingId);
		}
		}

		public void killAllBackgroundProcesses() {
		if (checkCallingPermission(android.Manifest.permission.KILL_BACKGROUND_PROCESSES)
		!= PackageManager.PERMISSION_GRANTED) {
		String msg = "Permission Denial: killAllBackgroundProcesses() from pid="
		+ Binder.getCallingPid()
		+ ", uid=" + Binder.getCallingUid()
		+ " requires " + android.Manifest.permission.KILL_BACKGROUND_PROCESSES;
		Slog.w(TAG, msg);
		throw new SecurityException(msg);
		}

		long callingId = Binder.clearCallingIdentity();
		try {
		synchronized(this) {
		ArrayList<ProcessRecord> procs = new ArrayList<ProcessRecord>();
		for (SparseArray<ProcessRecord> apps : mProcessNames.getMap().values()) {
		final int NA = apps.size();
		for (int ia=0; ia<NA; ia++) {
		ProcessRecord app = apps.valueAt(ia);
		if (app.persistent) {
		// we don't kill persistent processes
		continue;
		}
		if (app.removed) {
		procs.add(app);
		} else if (app.setAdj >= ProcessList.HIDDEN_APP_MIN_ADJ) {
		app.removed = true;
		procs.add(app);
		}
		}
		}

		int N = procs.size();
		for (int i=0; i<N; i++) {
		removeProcessLocked(procs.get(i), false, true, "kill all background");
		}
		}
		} finally {
		Binder.restoreCallingIdentity(callingId);
		@@ -3364,7 +3421,7 @@ public final class ActivityManagerService extends ActivityManagerNative

		private final boolean killPackageProcessesLocked(String packageName, int uid,
		int minOomAdj, boolean callerWillRestart, boolean allowRestart, boolean doit,
		boolean evenPersistent) {
		boolean evenPersistent, String reason) {
		ArrayList<ProcessRecord> procs = new ArrayList<ProcessRecord>();

		// Remove all processes this package may have touched: all with the
		@@ -3399,7 +3456,7 @@ public final class ActivityManagerService extends ActivityManagerNative

		int N = procs.size();
		for (int i=0; i<N; i++) {
		removeProcessLocked(procs.get(i), callerWillRestart, allowRestart);
		removeProcessLocked(procs.get(i), callerWillRestart, allowRestart, reason);
		}
		return N > 0;
		}
		@@ -3430,7 +3487,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		}

		boolean didSomething = killPackageProcessesLocked(name, uid, -100,
		callerWillRestart, false, doit, evenPersistent);
		callerWillRestart, false, doit, evenPersistent, "force stop");

		TaskRecord lastTask = null;
		for (i=0; i<mMainStack.mHistory.size(); i++) {
		@@ -3518,11 +3575,11 @@ public final class ActivityManagerService extends ActivityManagerNative
		}

		private final boolean removeProcessLocked(ProcessRecord app,
		boolean callerWillRestart, boolean allowRestart) {
		boolean callerWillRestart, boolean allowRestart, String reason) {
		final String name = app.processName;
		final int uid = app.info.uid;
		if (DEBUG_PROCESSES) Slog.d(
		TAG, "Force removing process " + app + " (" + name
		TAG, "Force removing proc " + app.toShortString() + " (" + name
		+ "/" + uid + ")");

		mProcessNames.remove(name, uid);
		@@ -3537,9 +3594,10 @@ public final class ActivityManagerService extends ActivityManagerNative
		mPidsSelfLocked.remove(pid);
		mHandler.removeMessages(PROC_START_TIMEOUT_MSG, app);
		}
		Slog.i(TAG, "Killing proc " + app.toShortString() + ": " + reason);
		handleAppDiedLocked(app, true, allowRestart);
		mLruProcesses.remove(app);
		Process.killProcess(pid);
		Process.killProcessQuiet(pid);

		if (app.persistent) {
		if (!callerWillRestart) {
		@@ -6846,7 +6904,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		for (int i=procsToKill.size()-1; i>=0; i--) {
		ProcessRecord proc = procsToKill.get(i);
		Slog.i(TAG, "Removing system update proc: " + proc);
		removeProcessLocked(proc, true, false);
		removeProcessLocked(proc, true, false, "system update done");
		}
		}

		@@ -7042,7 +7100,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		// Don't let services in this process be restarted and potentially
		// annoy the user repeatedly. Unless it is persistent, since those
		// processes run critical code.
		removeProcessLocked(app, false, false);
		removeProcessLocked(app, false, false, "crash");
		mMainStack.resumeTopActivityLocked(null);
		return false;
		}
		@@ -9298,8 +9356,10 @@ public final class ActivityManagerService extends ActivityManagerNative
		}

		final void dumpApplicationMemoryUsage(FileDescriptor fd,
		PrintWriter pw, String prefix, String[] args, boolean brief) {
		PrintWriter pw, String prefix, String[] args, boolean brief,
		PrintWriter categoryPw) {
		boolean dumpAll = false;
		boolean oomOnly = false;

		int opti = 0;
		while (opti < args.length) {
		@@ -9310,9 +9370,12 @@ public final class ActivityManagerService extends ActivityManagerNative
		opti++;
		if ("-a".equals(opt)) {
		dumpAll = true;
		} else if ("--oom".equals(opt)) {
		oomOnly = true;
		} else if ("-h".equals(opt)) {
		pw.println("meminfo dump options: [-a] [process]");
		pw.println("meminfo dump options: [-a] [--oom] [process]");
		pw.println(" -a: include all available information for each process.");
		pw.println(" --oom: only show processes organized by oom adj.");
		pw.println("If [process] is specified it can be the name or ");
		pw.println("pid of a specific process to dump.");
		return;
		@@ -9438,7 +9501,7 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		if (!brief) {
		if (!brief && !oomOnly) {
		pw.println();
		pw.println("Total PSS by process:");
		dumpMemItems(pw, " ", procMems, true);
		@@ -9446,10 +9509,11 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		pw.println("Total PSS by OOM adjustment:");
		dumpMemItems(pw, " ", oomMems, false);
		if (!brief) {
		pw.println();
		pw.println("Total PSS by category:");
		dumpMemItems(pw, " ", catMems, true);
		if (!oomOnly) {
		PrintWriter out = categoryPw != null ? categoryPw : pw;
		out.println();
		out.println("Total PSS by category:");
		dumpMemItems(out, " ", catMems, true);
		}
		pw.println();
		pw.print("Total PSS: "); pw.print(totalPss); pw.println(" Kb");