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From: Greg KH <greg@kroah.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	Ingo Molnar <mingo@elte.hu>,
	Siarhei Liakh <sliakh.lkml@gmail.com>,
	linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	James Morris <jmorris@namei.org>,
	Andrew Morton <akpm@linux-foundation.org>, Andi Kleen <ak@muc.de>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	linux-cris-kernel@axis.com
Subject: Re: [PATCH v5] RO/NX protection for loadable kernel modules
Date: Sun, 12 Jul 2009 15:14:30 -0700	[thread overview]
Message-ID: <20090712221430.GA16151@kroah.com> (raw)
In-Reply-To: <20090712145804.2f1fce98@infradead.org>

On Sun, Jul 12, 2009 at 02:58:04PM -0700, Arjan van de Ven wrote:
> On Sun, 12 Jul 2009 10:33:29 -0700
> Greg KH <greg@kroah.com> wrote:
> 
> > > 
> > > 105 is also a sign that you picked a somewhat suboptimal config...
> > > that's of course your choice but it's a choice that has a small
> > > price, if you don't want to pay that price, changing the config to
> > > not be entirely insane is a good answer as well ;-)
> > 
> > But this is the "common" case in the world of Linux where the distros
> > are forced to build everything as modules. 
> 
> who's holding the stick?
> Really.

Stick?

> I've seen some of these case, where the distro kernel has something as
> a module, but the other parts of the distro the unconditionally load
> that module always. That makes no sense.
> If you have 105 different real devices in your system, that have
> different drivers, sure, I'll buy 105. Somehow I doubt Rusty's box has
> 105 ;)

Sure, and I agree that some distros do modularize stuff too much, and am
personally changing this on a distro that I can change.  But even then,
I expect a "normal" system will end up with about 20-50 different
modules, due to a variety of good reasons (legacy system and ability to
handle wierd configurations better being both of them.)

thanks,

greg k-h

  reply	other threads:[~2009-07-12 22:15 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-08 23:10 [PATCH v5] RO/NX protection for loadable kernel modules Siarhei Liakh
     [not found] ` <20090710112403.GC3760@elte.hu>
     [not found]   ` <200907111537.03191.rusty@rustcorp.com.au>
2009-07-11  7:30     ` Ingo Molnar
2009-07-11 11:22       ` Rusty Russell
2009-07-11  8:51     ` Rusty Russell
2009-07-11 15:49       ` Arjan van de Ven
2009-07-12  4:40         ` Rusty Russell
2009-07-12  4:45           ` H. Peter Anvin
2009-07-12  7:45           ` Arjan van de Ven
2009-07-12  9:25             ` Andi Kleen
2009-07-12  9:58             ` Rusty Russell
2009-07-12 15:32               ` Arjan van de Ven
2009-07-12 17:33                 ` Greg KH
2009-07-12 21:58                   ` Arjan van de Ven
2009-07-12 22:14                     ` Greg KH [this message]
2009-07-13  9:02                     ` Andi Kleen
2009-07-12 23:21                 ` Rusty Russell
2009-07-13  3:11                   ` Arjan van de Ven
2009-07-12  9:24           ` Andi Kleen
2009-07-13 16:59             ` Roland Dreier
2009-07-13 10:59           ` Jesper Nilsson

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