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Date: Mon, 19 Nov 2007 20:42:36 +0100
From: Roman Divacky <rdivacky@freebsd.org>
To: Ulrich Spoerlein <uspoerlein@gmail.com>
Message-ID: <20071119194236.GA61631@freebsd.org>
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Cc: cvs-src@freebsd.org, Alfred Perlstein <alfred@freebsd.org>
Subject: Re: cvs commit: src/sys/kern subr_param.c
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On Mon, Nov 19, 2007 at 07:41:11PM +0100, Ulrich Spoerlein wrote:
> On Sun, 18.11.2007 at 18:53:28 -0800, Alfred Perlstein wrote:
> > * Roman Divacky <rdivacky@FreeBSD.org> [071118 14:42] wrote:
> > > On Tue, Oct 16, 2007 at 10:40:54AM +0000, Alfred Perlstein wrote:
> > > >   Modified files:
> > > >     sys/kern             subr_param.c 
> > > >   Log:
> > > >   Export maxswzone, maxbcache, maxtsiz, dfldsiz, maxdsiz, dflssiz, maxssiz,
> > > >   and sgrowsiz via sysctl.
> > > 
> > > why is maxssiz RD_ONLY? its used only in exec_new_vmspace() for setting the default
> > > stack area size and only if thats not set by sysentvec, so it's RW already just
> > > not defined so.
> > > 
> > > also... dflssiz is not used at all, and the "default stack size" is set by maxssiz
> > 
> > If you think it can be safely changed, then go for it!
> 
> Could this be done for maxdsiz, too? It's kinda sad you need to reboot a
> FreeBSD system to work around the 512MB data size limit (in this day and
> age, processes can easily hit the 512MB barrier)

as I can see the maxdsiz is used only as a barrier for rlimit.. I see no harm
in changing that to RW too..

I already asked kib@ if he's willing to commit this, waiting for answer...