[Samsung Galaxy Nexus] Chahk:
Face unlock still doesn't work on the 07/23 build with the following in logcat:

D/FULLockscreen( 336): Binding to Face Unlock service
D/dalvikvm( 141): WAIT_FOR_CONCURRENT_GC blocked 0ms
I/ActivityManager( 336): Start proc com.android.facelock for service com.android.facelock/.FaceLockService: pid=6889 uid=10016 gids={1006, 1028}
D/dalvikvm( 141): GC_EXPLICIT freed 38K, 44% free 10756K/19011K, paused 5ms+5ms, total 41ms
D/dalvikvm( 141): WAIT_FOR_CONCURRENT_GC blocked 0ms
D/dalvikvm( 141): GC_EXPLICIT freed <1K, 44% free 10756K/19011K, paused 2ms+6ms, total 39ms
D/dalvikvm( 141): WAIT_FOR_CONCURRENT_GC blocked 0ms
D/dalvikvm( 141): GC_EXPLICIT freed <1K, 44% free 10756K/19011K, paused 2ms+3ms, total 31ms
I/WindowManager( 336): Lock screen displayed!
I/dalvikvm( 6889): Could not find method com.android.internal.policy.IFaceLockCallback.pokeWakelock, referenced from method com.android.facelock.FaceLockService.doCallback
W/dalvikvm( 6889): VFY: unable to resolve interface method 435: Lcom/android/internal/policy/IFaceLockCallback;.pokeWakelock ()V
D/dalvikvm( 6889): VFY: replacing opcode 0x72 at 0x0057
I/CameraService( 143): Opening camera 1
I/CameraHAL( 143): camera_device open
D/dalvikvm( 6889): No JNI_OnLoad found in /system/lib/libfacelock_jni.so 0x419c7ad8, skipping init
I/AwesomePlayer( 143): setDataSource_l('/system/media/audio/ui/camera_click.ogg')
I/AwesomePlayer( 143): setDataSource_l('/system/media/audio/ui/VideoRecord.ogg')
D/SurfaceFlinger( 140): Screen about to return, flinger = 0x40d40bb8
E/PowerManagerService( 336): Excessive delay setting brightness: 256ms, mask=2
D/FULLockscreen( 336): Connected to Face Unlock service
D/FULLockscreen( 336): handleServiceConnected()
D/FULLockscreen( 336): Starting Face Unlock
D/dalvikvm( 6889): --- called into dvmAbstractMethodStub
E/JavaBinder( 6889): *** Uncaught remote exception! (Exceptions are not yet supported across processes.)
E/JavaBinder( 6889): java.lang.AbstractMethodError: abstract method not implemented
E/JavaBinder( 6889): at com.android.internal.policy.IFaceLockInterface$Stub.startUi(IFaceLockInterface.java)
E/JavaBinder( 6889): at com.android.internal.policy.IFaceLockInterface$Stub.onTransact(IFaceLockInterface.java:61)
E/JavaBinder( 6889): at android.os.Binder.execTransact(Binder.java:367)
E/JavaBinder( 6889): at dalvik.system.NativeStart.run(Native Method)
W/dalvikvm( 6889): threadid=9: thread exiting with uncaught exception (group=0x40f31300)
I/Process ( 6889): Sending signal. PID: 6889 SIG: 9
E/AndroidRuntime( 6889): FATAL EXCEPTION: Binder_1
E/AndroidRuntime( 6889): java.lang.AbstractMethodError: abstract method not implemented
E/AndroidRuntime( 6889): at com.android.internal.policy.IFaceLockInterface$Stub.startUi(IFaceLockInterface.java)
E/AndroidRuntime( 6889): at com.android.internal.policy.IFaceLockInterface$Stub.onTransact(IFaceLockInterface.java:61)
E/AndroidRuntime( 6889): at android.os.Binder.execTransact(Binder.java:367)
E/AndroidRuntime( 6889): at dalvik.system.NativeStart.run(Native Method)
E/FULLockscreen( 336): Caught exception starting Face Unlock: android.os.DeadObjectException
E/FULLockscreen( 336): Unexpected disconnect from Face Unlock service
E/FULLockscreen( 336): handleServiceDisconnected()
I/CameraService( 143): Destroying camera 1
I/ActivityManager( 336): Process com.android.facelock (pid 6889) has died.
W/ActivityManager( 336): Scheduling restart of crashed service com.android.facelock/.FaceLockService in 5000ms
W/AudioFlinger( 143): session id 27 not found for pid 143
W/AudioFlinger( 143): session id 28 not found for pid 143
D/MediaProvider( 877): object removed 23013
D/MediaProvider( 877): object removed 23014
D/MediaProvider( 877): object removed 23015
D/MediaProvider( 877): object removed 23016
D/MediaProvider( 877): object removed 23017
I/ActivityManager( 336): Start proc com.android.facelock for service com.android.facelock/.FaceLockService: pid=6919 uid=10016 gids={1006, 1028}
D/MediaProvider( 877): object removed 23018
I/dalvikvm( 6919): Could not find method com.android.internal.policy.IFaceLockCallback.pokeWakelock, referenced from method com.android.facelock.FaceLockService.doCallback
W/dalvikvm( 6919): VFY: unable to resolve interface method 435: Lcom/android/internal/policy/IFaceLockCallback;.pokeWakelock ()V
D/dalvikvm( 6919): VFY: replacing opcode 0x72 at 0x0057
I/CameraService( 143): Opening camera 1
I/CameraHAL( 143): camera_device open
D/dalvikvm( 6919): No JNI_OnLoad found in /system/lib/libfacelock_jni.so 0x419bec70, skipping init
I/AwesomePlayer( 143): setDataSource_l('/system/media/audio/ui/camera_click.ogg')
I/AwesomePlayer( 143): setDataSource_l('/system/media/audio/ui/VideoRecord.ogg')
D/FULLockscreen( 336): Connected to Face Unlock service
D/FULLockscreen( 336): handleServiceConnected()
D/FULLockscreen( 336): Dropping startUi() in handleServiceConnected() because no longer bound

The good thing is that it doesn't kill the camera (until reboot) like it used to on previous builds.

Does CM team still not accept bug reports on jellybean nightlies?