Waiting for service media.audio_policy on android boot

Question

i am developing cyanogenmod 11 for my device samsung sm-g7102 garnd2 but it does not boot and gives bootloop on cyanogenmod logo. the logcat shows following

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W/AudioSystem( 684): AudioPolicyService not published, waiting...
I/ServiceManager( 684): Waiting for service media.audio_policy...
I/ServiceManager( 684): Waiting for service media.audio_policy...
I/ServiceManager( 684): Waiting for service media.audio_policy...
I/ServiceManager( 684): Waiting for service media.audio_policy...
I/ServiceManager( 684): Waiting for service media.audio_policy...
W/AudioSystem( 684): AudioPolicyService not published, waiting...
I/ServiceManager( 684): Waiting for service media.audio_policy...
I/ServiceManager( 684): Waiting for service media.audio_policy... 

#

this goes on and on....

also if i delete libsecnativefeature.so from system/lib it boots fine but there is no sound, camera, ril.

Answer 1

A Samsung Galaxy J5 I came around recently had a similar (if not same) problem and was stuck in a bootloop. Doing a quick search online, it seems this "bootloop caused by audio error" is common in many Samsung models, but not much information on it is out there.

The errors which were looping (obtained from logcat) included:

I/ServiceManager(  248): service 'media.audio_flinger' died
I/ServiceManager(  248): service 'media.player' died
I/ServiceManager(  248): service 'media.camera' died
I/ServiceManager(  513): Waiting for service media.audio_policy...
E/SamsungPowerSound(  513): wait_for_audio_policy
E/SamsungPowerSound(  513): media.audio_policy not published, waiting...

I was able to resolve the problem by chmoding the file /system/lib/libaudioflinger.so to 755 (rwx-rx-rx). By default, the permissions were 644 (rw-r-r).

Since this solved the issue, my speculation is that a process with low privileges needed to execute the library file.

Note: I had to root the phone before I could edit the the permissions of the file. This voids the warranty. Also for most Samsung models, make sure you have enabled OEM Unlock else you risk wiping your phone via some flashing methods like Odin.