[alsa-devel] Can not rmmod snd_hda_codec_hdmi

[Xuebing Wang]

On Wed, 2014-12-24 at 22:21 +0900, Takashi Sakamoto wrote:
> On Dec 24 2014 22:07, Xuebing Wang wrote:
> > 2) However, in Fedora, 'pulseaudio --kill' or your way can get refcount
> > of snd_hda_intel from 7 to 2 (5 decreased). Any suggestions how to
> > decrease the rest 2 refcount?
> > 
> > 3) I did try to build tag 3.13 from mainline kernel (using Fedora 3.17.4
> > config file) and tried 3.13 kernel on Fedora, and got the same result
> > (refcount of snd_hda_intel is down from 7 to 2).
> 
> Hm. In this case that the refcount is down to 2, how is the output of
> 'fuser' command? If any applications use these character devices, we can
> see the name of command.

Sakamoto-san, thanks for your help.

I found out that it is alsactl in Fedora. After kill alsactl, refcnt is
now down to 0, and both snd_hda_intel and snd_hda_codec_hdmi can be
rmmod'ed. 'fuser -v /dev/snd' does not reveal alsactl.

Thanks again.


> Regards
> 
> Takashi Sakamoto
> o-takashi at sakamocchi.jp
>