[linux-audio-user] jackd fails to start: cannot create shm segment /jack-shm-registry (No such file or directory)

Mark Knecht mknecht at controlnet.com
Fri Apr 18 12:53:59 EDT 2003


>
> > Well, the odd thing is that I have the exactly same setup on another
> > machine with the same kernel rpm installed and that one has shm just
> > fine.
> >
> > At any rate, according to Mdk there needs to be this kind of line added:
> >
> > none /tmp tmpfs defaults 0 0
>
> I think your problem is that, for JACK, the mount point should be
> /dev/shm.  You can use tmpfs for the /tmp file system if you want, but
> that does not satisfy JACK's requirement for POSIX openshm support.
>

Jack,
   I found (in my Redhat case) that there is support for something that
'replaces' the shm file system in the kernel I built this morning, but when
I went to mount it I found that /dev/shm doesn't exist. I know from my 1394
work that these things have to be created correctly, but I do not know how
to do it. Do you know of any documentation on the right way to get this
created? I admit I have not searched the Jack archives yet.

   What value does this provide, by the way? Jack seemed to be working just
fine for me up to now.

Thanks,
Mark





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