Subject: Re: that VM/fs cache coherency problem
To: None <tech-kern@NetBSD.ORG>
From: Zdenek Salvet <>
List: tech-kern
Date: 08/01/1995 13:55:28
Allen Briggs wrote:
> > tail -f on logfiles is coredumping.
> > (The problem seems to be related to tail's tendency to read the file
> > via mmap().)
> Is this over NFS?  I do this all the time on my mac68k box with all
> local filesystems and have never seen tail -f dump or fail at all.
> The way I usually build the world is to nohup and background the
> make, then tail -f the log file sometimes from multiple terminals
> at once...

I have built entire X11R6+contrib that way even on NFS several times 
without any shade of problem with 1.0/i386. What is different in mmap&tail
in -current ?

Zdenek Salvet