Date: Wed, 19 Jun 1996 09:04:52 +0100 (GMT+0100) From: "Alain FAUCONNET" <af@biomath.jussieu.fr> To: freebsd-questions@freebsd.org Subject: Re: Max first parameter of a Select call? Message-ID: <199606190804.AA28032@iaka.biomath.jussieu.fr>
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Christiaan Keet wrote / a ecrit:
>
> How do you get the 'select' call in FreeBSD to be happy with something
> greater than 256 as a first parameter?
> Anything above this seems to give a "Select error 22 - invalid argument"
>
Not a reply, just a followup: this "feature" seems to have a lot of
interesting side effects on my machine (2.1-STABLE pre-earthquake).
When I set user resources limits to hard limits ("unlimit" C-shell
command) and the max file descriptors goes >> 256, sudo no longer
works ("Password:" prompt exits immediately), fvwm sets system load at
1.0 permanently. I have ktraced fvwm and actually saw that select
returning an error. Everything goes back to normal when I set max fd
<= 256.
I pulled my hair for a while on this.
Why unlimiting ? for some reason on my machine maxproc per user is set
to 40 by the shell (tcsh) (despite MAXUSERS=64 in the config file)
which is just too low. I get frequent fork errors. Now I unlimit more
selectively :-)
_Alain_
--
Alain FAUCONNET Ingenieur systeme - System Manager AP-HP/SIM
Public Health 91 bld de l'Hopital 75013 PARIS FRANCE
Medical Computing Research Labs Mail: af@biomath.jussieu.fr
Tel: (+33) 1-40-77-96-19 Fax: (+33) 1-45-86-80-68
I've RTFMed. It says: "Refer to your system administrator"
But... I *am* the system administrator :-]
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