From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Michael Buesch <mb@bu3sch.de>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Really good idea to allow mmap(0, FIXED)?
Date: Thu, 05 Oct 2006 22:58:00 +0100 [thread overview]
Message-ID: <1160085480.1607.32.camel@localhost.localdomain> (raw)
In-Reply-To: <200610052059.11714.mb@bu3sch.de>
Ar Iau, 2006-10-05 am 20:59 +0200, ysgrifennodd Michael Buesch:
> Is is really a good idea to allow processes to remap something
> to address 0?
It is very useful indeed. Consider for example dosemu.
> Besides that, I currently don't see a valid reason to mmap address 0.
>
> Comments?
User zero is not neccessarily mapped at kernel zero so your argument
isn't portable either.
next prev parent reply other threads:[~2006-10-05 21:32 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-05 18:59 Really good idea to allow mmap(0, FIXED)? Michael Buesch
2006-10-05 19:50 ` linux-os (Dick Johnson)
2006-10-06 14:40 ` Michael Buesch
2006-10-05 21:58 ` Alan Cox [this message]
2006-10-06 14:44 ` Michael Buesch
2006-10-07 11:23 ` Pavel Machek
2006-10-05 23:55 ` David Wagner
2006-10-06 4:34 ` Jeremy Fitzhardinge
2006-10-06 5:39 ` Jan Engelhardt
2006-10-06 19:47 ` David Wagner
2006-10-06 7:25 ` Arjan van de Ven
2006-10-06 10:36 ` Mikael Pettersson
2006-10-06 11:20 ` Arjan van de Ven
2006-10-06 19:43 ` David Wagner
2006-10-08 0:22 ` Jeremy Fitzhardinge
2006-10-08 2:03 ` David Wagner
2006-10-08 19:18 ` Michael Buesch
2006-10-06 14:55 ` Michael Buesch
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