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Commit 9ebefe12 authored by riddle_hsu's avatar riddle_hsu Committed by Steve Kondik
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[ActivityManager] Fix index out of bounds when updating next pss time. 

Symptom:
System server crash.

Root Cause:
The value curProcState for array index is -1 if the process
has not attached yet.

Solution:
Skip computing for process which is not attached or have
invalid curProcState.

Change-Id: I71aaf45bb78d73097ebe9dfebf76b72f2d243232
parent 676a5b43

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

+3 −0
Original line number Diff line number Diff line
@@ -17315,6 +17315,9 @@ public final class ActivityManagerService extends ActivityManagerNative 
        mPendingPssProcesses.clear();

        for (int i=mLruProcesses.size()-1; i>=0; i--) {

            ProcessRecord app = mLruProcesses.get(i);

            if (app.thread == null || app.curProcState < 0) {

                continue;

            }

            if (memLowered || now > (app.lastStateTime+ProcessList.PSS_ALL_INTERVAL)) {

                app.pssProcState = app.setProcState;

                app.nextPssTime = ProcessList.computeNextPssTime(app.curProcState, true,