diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
index ff64855..7164b78 100644
--- a/include/media/AudioRecord.h
+++ b/include/media/AudioRecord.h
@@ -335,6 +335,7 @@
     uint32_t                mNotificationFrames;
     uint32_t                mRemainingFrames;
     uint32_t                mMarkerPosition;
+    bool                    mMarkerReached;
     uint32_t                mNewPosition;
     uint32_t                mUpdatePeriod;
 };
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 77c90ba..3a3a714 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -38,6 +38,7 @@
         ALARM           = 4,
         NOTIFICATION    = 5,
         BLUETOOTH_SCO   = 6,
+        ENFORCED_AUDIBLE = 7, // Sounds that cannot be muted by user and must be routed to speaker
         NUM_STREAM_TYPES
     };
 
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index 659f5f8..7645978 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -409,6 +409,7 @@
     int                     mLoopCount;
     uint32_t                mRemainingFrames;
     uint32_t                mMarkerPosition;
+    bool                    mMarkerReached;
     uint32_t                mNewPosition;
     uint32_t                mUpdatePeriod;
 };
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index 58906d1..255a67b 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -173,6 +173,7 @@
     };
 
     sp<IMediaPlayer>            mPlayer;
+    thread_id_t                 mLockThreadId;
     Mutex                       mLock;
     Mutex                       mNotifyLock;
     Condition                   mSignal;
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
index 78d7621..b9ea0c6 100644
--- a/include/media/mediarecorder.h
+++ b/include/media/mediarecorder.h
@@ -104,7 +104,8 @@
 // 
 enum media_recorder_info_type {
     MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
-    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800
+    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
+    MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index 1991aa7..bda969c 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -64,7 +64,8 @@
                 uint16_t    waitTimeMs;      // Cumulated wait time
                 // Padding ensuring that data buffer starts on a cache line boundary (32 bytes). 
                 // See AudioFlinger::TrackBase constructor
-                int32_t     Padding[3];
+                int32_t     Padding[1];
+                // Cache line boundary
                 
                             audio_track_cblk_t();
                 uint32_t    stepUser(uint32_t frameCount);
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index 7594ff0..986f88e 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -200,6 +200,7 @@
     // TODO: add audio hardware input latency here
     mLatency = (1000*mFrameCount) / mSampleRate;
     mMarkerPosition = 0;
+    mMarkerReached = false;
     mNewPosition = 0;
     mUpdatePeriod = 0;
 
@@ -293,6 +294,9 @@
 
     if (android_atomic_and(~1, &mActive) == 1) {
         mAudioRecord->stop();
+        // the record head position will reset to 0, so if a marker is set, we need
+        // to activate it again
+        mMarkerReached = false;
         if (t != 0) {
             t->requestExit();
         } else {
@@ -317,6 +321,7 @@
     if (mCbf == 0) return INVALID_OPERATION;
 
     mMarkerPosition = marker;
+    mMarkerReached = false;
 
     return NO_ERROR;
 }
@@ -492,10 +497,10 @@
     size_t readSize;
 
     // Manage marker callback
-    if (mMarkerPosition > 0) {
+    if (!mMarkerReached && (mMarkerPosition > 0)) {
         if (mCblk->user >= mMarkerPosition) {
             mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition);
-            mMarkerPosition = 0;
+            mMarkerReached = true;
         }
     }
 
@@ -527,7 +532,14 @@
         readSize = audioBuffer.size;
 
         // Sanity check on returned size
-        if (ssize_t(readSize) <= 0) break;
+        if (ssize_t(readSize) <= 0) {
+            // The callback is done filling buffers
+            // Keep this thread going to handle timed events and
+            // still try to get more data in intervals of WAIT_PERIOD_MS
+            // but don't just loop and block the CPU, so wait
+            usleep(WAIT_PERIOD_MS*1000);
+            break;
+        }
         if (readSize > reqSize) readSize = reqSize;
 
         audioBuffer.size = readSize;
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index d26b0c5..24f7281 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -259,6 +259,7 @@
     mLatency = afLatency + (1000*mFrameCount) / mSampleRate;
     mLoopCount = 0;
     mMarkerPosition = 0;
+    mMarkerReached = false;
     mNewPosition = 0;
     mUpdatePeriod = 0;
 
@@ -360,6 +361,9 @@
         // Cancel loops (If we are in the middle of a loop, playback
         // would not stop until loopCount reaches 0).
         setLoop(0, 0, 0);
+        // the playback head position will reset to 0, so if a marker is set, we need
+        // to activate it again
+        mMarkerReached = false;
         // Force flush if a shared buffer is used otherwise audioflinger
         // will not stop before end of buffer is reached.
         if (mSharedBuffer != 0) {
@@ -385,14 +389,18 @@
 void AudioTrack::flush()
 {
     LOGV("flush");
+    
+    // clear playback marker and periodic update counter
+    mMarkerPosition = 0;
+    mMarkerReached = false;
+    mUpdatePeriod = 0;
+    
 
     if (!mActive) {
-        mCblk->lock.lock();
         mAudioTrack->flush();
         // Release AudioTrack callback thread in case it was waiting for new buffers
         // in AudioTrack::obtainBuffer()
         mCblk->cv.signal();
-        mCblk->lock.unlock();
     }
 }
 
@@ -443,7 +451,7 @@
     if (rate > afSamplingRate*2) rate = afSamplingRate*2;
     if (rate > MAX_SAMPLE_RATE) rate = MAX_SAMPLE_RATE;
 
-    mCblk->sampleRate = rate;
+    mCblk->sampleRate = (uint16_t)rate;
 }
 
 uint32_t AudioTrack::getSampleRate()
@@ -510,6 +518,7 @@
     if (mCbf == 0) return INVALID_OPERATION;
 
     mMarkerPosition = marker;
+    mMarkerReached = false;
 
     return NO_ERROR;
 }
@@ -757,10 +766,10 @@
     }
 
     // Manage marker callback
-    if(mMarkerPosition > 0) {
+    if (!mMarkerReached && (mMarkerPosition > 0)) {
         if (mCblk->server >= mMarkerPosition) {
             mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition);
-            mMarkerPosition = 0;
+            mMarkerReached = true;
         }
     }
 
diff --git a/media/libmedia/JetPlayer.cpp b/media/libmedia/JetPlayer.cpp
index 2c62104..586aacb 100644
--- a/media/libmedia/JetPlayer.cpp
+++ b/media/libmedia/JetPlayer.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#define LOG_NDEBUG 0
+//#define LOG_NDEBUG 0
 #define LOG_TAG "JetPlayer-C"
 
 #include <utils/Log.h>
@@ -194,8 +194,15 @@
     }
 
    while (1) {
+    
         mMutex.lock(); // [[[[[[[[ LOCK ---------------------------------------
 
+        if (mEasData == NULL) {
+            mMutex.unlock();
+            LOGV("JetPlayer::render(): NULL EAS data, exiting render.");
+            goto threadExit;
+        }
+            
         // nothing to render, wait for client thread to wake us up
         while (!mRender)
         {
@@ -255,7 +262,10 @@
     }//while (1)
 
 threadExit:
-    mAudioTrack->flush();
+    if (mAudioTrack) {
+        mAudioTrack->stop();
+        mAudioTrack->flush();
+    }
     if (mAudioBuffer) {
         delete [] mAudioBuffer;
         mAudioBuffer = NULL;
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 6b40412..809316a 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -91,6 +91,7 @@
     mLoop = false;
     mLeftVolume = mRightVolume = 1.0;
     mVideoWidth = mVideoHeight = 0;
+    mLockThreadId = 0;
 }
 
 void MediaPlayer::onFirstRef()
@@ -223,16 +224,24 @@
 {
     LOGV("prepare");
     Mutex::Autolock _l(mLock);
-    if (mPrepareSync) return -EALREADY;
+    mLockThreadId = getThreadId();
+    if (mPrepareSync) {
+        mLockThreadId = 0;
+        return -EALREADY;
+    }
     mPrepareSync = true;
     status_t ret = prepareAsync_l();
-    if (ret != NO_ERROR) return ret;
+    if (ret != NO_ERROR) {
+        mLockThreadId = 0;
+        return ret;
+    }
 
     if (mPrepareSync) {
         mSignal.wait(mLock);  // wait for prepare done
         mPrepareSync = false;
     }
     LOGV("prepare complete - status=%d", mPrepareStatus);
+    mLockThreadId = 0;
     return mPrepareStatus;
 }
 
@@ -407,8 +416,12 @@
 
 status_t MediaPlayer::seekTo(int msec)
 {
+    mLockThreadId = getThreadId();
     Mutex::Autolock _l(mLock);
-    return seekTo_l(msec);
+    status_t result = seekTo_l(msec);
+    mLockThreadId = 0;
+
+    return result;
 }
 
 status_t MediaPlayer::reset()
@@ -485,14 +498,24 @@
 {
     LOGV("message received msg=%d, ext1=%d, ext2=%d", msg, ext1, ext2);
     bool send = true;
+    bool locked = false;
 
     // TODO: In the future, we might be on the same thread if the app is
     // running in the same process as the media server. In that case,
     // this will deadlock.
-    mLock.lock();
+    // 
+    // The threadId hack below works around this for the care of prepare
+    // and seekTo within the same process.
+    // FIXME: Remember, this is a hack, it's not even a hack that is applied
+    // consistently for all use-cases, this needs to be revisited.
+     if (mLockThreadId != getThreadId()) {
+        mLock.lock();
+        locked = true;
+    } 
+
     if (mPlayer == 0) {
         LOGV("notify(%d, %d, %d) callback on disconnected mediaplayer", msg, ext1, ext2);
-        mLock.unlock();   // release the lock when done.
+        if (locked) mLock.unlock();   // release the lock when done.
         return;
     }
 
@@ -561,7 +584,7 @@
     }
 
     sp<MediaPlayerListener> listener = mListener;
-    mLock.unlock();
+    if (locked) mLock.unlock();
 
     // this prevents re-entrant calls into client code
     if ((listener != 0) && send) {
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index 23b3b9d..6b26faf 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -367,8 +367,9 @@
     status_t ret = mMediaRecorder->setParameters(params);
     if (OK != ret) {
         LOGE("setParameters(%s) failed: %d", params.string(), ret);
-        mCurrentState = MEDIA_RECORDER_ERROR;
-        return ret;
+        // Do not change our current state to MEDIA_RECORDER_ERROR, failures
+        // of the only currently supported parameters, "max-duration" and
+        // "max-filesize" are _not_ fatal.
     }
 
     return ret;
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 95001c6..8ef0dc6 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -460,6 +460,7 @@
         Mutex::Autolock l(mLock);
         p = mPlayer;
     }
+    mClient.clear();
     mPlayer.clear();
 
     // clear the notification to prevent callbacks to dead client