Ошибка при перезапуске alsa.

При попытке перезапуска mpd при запущенном mplayer с выходом на алсу возникает такая ситуация:

# /etc/init.d/mpd restart      
* Stopping Music Player Daemon...                                                                                                                        [ ok ]
* Starting Music Player Daemon...
No "audio_output" defined in config file
Attempt to detect audio output device
Attempting to detect a alsa audio device
ALSA lib pcm_dmix.c:975:(snd_pcm_dmix_open) unable to create IPC semaphore
Error opening default ALSA device: Permission denied
Attempting to detect a oss audio device
oss: Error opening OSS device "/dev/dsp": Device or resource busy
oss: Error opening OSS device "/dev/sound/dsp": No such file or directory
Attempting to detect a pulse audio device
Cannot connect to default PulseAudio server: Connection refused
Attempting to detect a jack audio device
Successfully detected a jack audio device        

Обращаю внимание на строку:
ALSA lib pcm_dmix.c:975:(snd_pcm_dmix_open) unable to create IPC semaphore

Звуковая карта Creative Audigy SE, содержимое файлов /etc/modules.d/alsa, /etc/modprobe.d/alsa, /etc/modprobe.d/sound (скопированны из первого в поиске решения проблемы):

# --- BEGIN: Generated by ALSACONF, do not edit. ---
# --- ALSACONF version 1.0.19 ---
alias char-major-116 snd
alias char-major-14 soundcore
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
alias snd-card-0 snd-ca0106
alias sound-slot-0 snd-ca0106
# --- END: Generated by ALSACONF, do not edit. ---