am 05db19bc: Merge "trigger kernel blocked stack trace on system server watchdog" into jb-mr1.1-dev

import android.util.Slog;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Calendar;

                dumpKernelStackTraces();

            }

            // Trigger the kernel to dump all blocked threads to the kernel log

            try {

                FileWriter sysrq_trigger = new FileWriter("/proc/sysrq-trigger");

                sysrq_trigger.write("w");

                sysrq_trigger.close();

            } catch (IOException e) {

                Slog.e(TAG, "Failed to write to /proc/sysrq-trigger");

                Slog.e(TAG, e.getMessage());

            }

            // Try to add the error to the dropbox, but assuming that the ActivityManager

            // itself may be deadlocked.  (which has happened, causing this statement to

            // deadlock and the watchdog as a whole to be ineffective)