From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <2044d50e23b4f3405867ad4c1ba901f1@rei2.9hal>
Date: Wed,  2 May 2012 12:11:30 +0200
From: cinap_lenrek@gmx.de
To: 9fans@9fans.net
In-Reply-To: <EFC8C99F-E1CB-4C27-8B37-44889AF17FA4@ar.aichi-u.ac.jp>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] ARG_MAX of Plan9
Topicbox-Message-UUID: 834992ac-ead7-11e9-9d60-3106f5b1d025

as far as i can see, its just limited by this:
    /*
	 * Build the stack segment, putting it in kernel virtual for the moment
	 */
	if(spage > TSTKSIZ)
		error(Enovmem);

in pc/mem.h:55: #define	TSTKSIZ 	100			/* pages in new stack; limits exec args */

so that will give you arround half a megabyte for program
arguments.

--
cinap