lsof and fuser do not work with /dev/dsp

alexrait1 · 10-08-2004, 02:23 PM

I can't figure out what wrong with lsof and fuser, that they work on all distributions but slackware 10.
Usually, If I hear a sound (radio stream) and give this command to the kconsole:

Code:

losf /dev/dsp

or

Code:

fuser /dev/dsp

one of them at least would produce an output with the application name (the one which currently opened /dev/dsp). But, on Slackware that trick would not work, what can be wrong? It goes to the next line instead...

Tinkster · 10-08-2004, 03:24 PM

Works here ... no idea what your problem is.

I have tried it on my notebook using OSS and
a workstation using ALSA.

Cheers,
Tink

alexrait1 · 10-09-2004, 07:52 AM

Hey, thanx for the reply.

Indeed if I try to play some radio station or anything with xmms for instance, I can see an appropriate line appears when I type lsof.
But, it does not appear when I do the same with xine, totem, kaffeine.

andrade · 10-09-2004, 07:59 AM

I'm not much inside of the this subject... but try do to that... run the script alsaconf ... and retry... ot try to use other device instead of dsp

Tinkster · 10-09-2004, 04:07 PM

Quote:

Originally posted by alexrait1
Hey, thanx for the reply.

Indeed if I try to play some radio station or anything with xmms for instance, I can see an appropriate line appears when I type lsof.
But, it does not appear when I do the same with xine, totem, kaffeine.

Hard to say - I can't think of any logical explanation.

All I can say is it works here, and if you didn't compile
your apps differently or aren't running a security hardened
kernel that will disallow users to see root's activities (and
totem and co e.g. running against a sound-server that's
onwed by root) I have no clue as to what's going on.

Cheers,
Tink