[Asterisk-Users] ALSA Sound dies after a while

[Juan Pablo Morales]

I am currently running an asterisk server locally on a PC, to see what 
kinds of things it can do. The output device is the sound system, via 
alsa. It starts perfectly and plays the first sounds but after a minute 
or to the sound dies and several messages
Mar  3 21:30:29 WARNING[180236]: chan_oss.c:272 sound_thread: Failed to 
write sound
Mar  3 21:30:29 WARNING[180236]: chan_oss.c:181 send_sound: Unable to 
read output space

are issued.
This looks like an alsa lock. I have tried to run the system both with 
and without esd. When running lsof for /dev/dsp only asterik and it's 
child processes are using it.

Has anybody experienced this?

thanks in advance
Juan Pablo Morales