Named pipes on NFS file system?

[George Robbins]

In article <PERF.89Aug2163421 at osiris.efd.lth.se> perf at efd.lth.se (Per Foreby) writes:
> 
> Running Ultrix 3.0 on Mvax II and VS2000.
> 
> Named pipes doesn`t work on NFS file systems.
...
> Does anyone know about this? Fixed in Ultrix 3.1? Some undocumented
> (or hard to find) option in the kernel?

Well, it's definitly not fixed in Ultrix 3.1.

There actually seem to be two problems.

1 - if you create a pipe from ultrix on a filesystem that is remotely
    mounted, the ultrix systems sees it as a special device as you described,
    to the actual pipe node seem to be correctly created.

2 - if you create a pipe from another system on a filesystem that is
    locally mounted on ultrix, the pipe appears to be created, but does
    not work correctly - writes don't do anyting and reads get a
    "is a directory"

There was a problem with 2.2 that was described as having to do with
"modes" on named pipes and NFS.  Perhaps the patch didn't make it
into Ultrix 3.0 or otherwise got messed up...

>From the 2.2 patch tape README file:

"	2. Fix for mode of named pipe created over NFS.

Have you reported this problem to DEC software support?

-- 
George Robbins - now working for,	uucp: {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr at uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)