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SubjectRe: lockd does not work as expected


On Sat, 27 Feb 1999, Mike Harrelson wrote:

> On Sat, 27 Feb 1999, Steven N. Hirsch wrote:

> > > Thanks a lot. I'll try to replace the flock system
> > > call by any of the others. Actually flock worked
> > > perfectly as long as I just use solaris nodes. So
> > > the linux system is not "consistent with existing
> > > practice on other UNIX's".
> >
> > Yes, the semantics are not consistant across platforms. AIX and Digital
> > Unix 4.x also seem to support flock() over NFS. Which Unices _don't_
> > support it (just for curiousity)?
>
> Digital Unix, as of 4.0D, did not support NFS locking via flock(). It was
> a local lock only.

Odd. The last time I looked into this, it acted as if it was locking over
NFS. I ran one little Perl program on the Alpha, and a second on an AIX
NFS client machine. It certainly acted as if they were respecting each
other's flock(). And, yes, I checked the Perl sources. It's definitely
using flock().

Steve



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