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

[Ivica Bukvic]

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

(supposedly tmpfs has replaced shmfs in the newer kernels)

Yet, I am not sure whether this thing has to be mounted explicitly or
what. On the other machine everything is automatic, but this one is
giving me all kinds of headaches. Should I maybe recompile the jack, now
that I've added this thingy to my fstab? What about a reboot?

Ico

> -----Original Message-----
> From: Antonis Galanopoulos [mailto:addon at blueyonder.co.uk]
> Sent: Thursday, April 17, 2003 9:10 PM
> To: linux-audio-user at music.columbia.edu
> Cc: ico at fuse.net
> Subject: Re: [linux-audio-user] jackd fails to start: cannot create
shm
> segment /jack-shm-registry (No such file or directory)
> 
> hi
> On Thursday 17 April 2003 23:44, Ivica Bukvic wrote:
> > key for /tmp/jack/shm/jack-shm-registry is 0x6a06252b
> > cannot create shm segment /jack-shm-registry (No such file or
directory)
> 
> You need to mount shmfs for jack to work. My /etc/fstab entry is like
> that:
> shmfs                /dev/shm             shm        defaults
0
> 0
> To do that you need  a kernel compiled with shm support.
> --regards
> anton