From: Pavel Machek <pavel@suse.cz>
To: Ulrich Drepper <drepper@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
Jason Baron <jbaron@redhat.com>,
akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: make PROT_WRITE imply PROT_READ
Date: Thu, 29 Jun 2006 09:30:33 +0200 [thread overview]
Message-ID: <20060629073033.GF27526@elf.ucw.cz> (raw)
In-Reply-To: <a36005b50606281647i58f2899eo7ae7e95757969d42@mail.gmail.com>
On Wed 2006-06-28 16:47:00, Ulrich Drepper wrote:
> On 6/28/06, Pavel Machek <pavel@ucw.cz> wrote:
> >mmap() behaviour always was platform-specific, and it happens to be
> >quite strange on i386. So what.
>
> Nonsense. The mmap semantics is specified in POSIX. If something
> doesn't work as requested it is a bug. For the specific issue hurting
> x86 and likely others the standard explicitly allows requiring
> PROT_READ to be used or implicitly adding it. Don't confuse people
> with wrong statement like yours.
Can you quote part of POSIX where it says that PROT_WRITE must imply
PROT_READ?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-06-29 7:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.PuMM6IwflUYh1MWILO9rb6z4fvY@ifi.uio.no>
2006-06-23 1:24 ` make PROT_WRITE imply PROT_READ Robert Hancock
2006-06-23 13:39 ` Jason Baron
2006-06-23 14:06 ` Arjan van de Ven
2006-06-23 14:05 ` Jason Baron
2006-06-23 14:18 ` Arjan van de Ven
2006-06-24 18:45 ` Ulrich Drepper
2006-06-27 9:56 ` Pavel Machek
2006-06-27 12:18 ` Arjan van de Ven
2006-06-28 16:43 ` Ulrich Drepper
2006-06-28 19:49 ` Pavel Machek
2006-06-28 20:05 ` Chase Venters
2006-06-28 23:47 ` Ulrich Drepper
2006-06-29 7:30 ` Pavel Machek [this message]
2006-06-29 11:58 ` Alan Cox
2006-06-29 17:20 ` Pavel Machek
2006-06-29 21:00 ` Jason Baron
2006-07-07 2:05 ` Jason Baron
2006-06-30 3:49 ` Ulrich Drepper
2006-06-29 8:15 ` Arjan van de Ven
2006-06-30 3:48 ` Ulrich Drepper
2006-06-30 8:35 ` Arjan van de Ven
2006-06-30 12:20 ` Alan Cox
[not found] <6qIEW-1Tx-23@gated-at.bofh.it>
[not found] ` <6qIEW-1Tx-21@gated-at.bofh.it>
[not found] ` <6qUwd-2Aq-9@gated-at.bofh.it>
[not found] ` <6qUwd-2Aq-7@gated-at.bofh.it>
[not found] ` <6qUFV-2N8-13@gated-at.bofh.it>
[not found] ` <6qUFY-2N8-33@gated-at.bofh.it>
[not found] ` <6rlmT-8op-37@gated-at.bofh.it>
[not found] ` <6siwJ-3dC-5@gated-at.bofh.it>
[not found] ` <6sLoY-4GV-31@gated-at.bofh.it>
[not found] ` <6sZUS-V5-19@gated-at.bofh.it>
[not found] ` <6tib4-2wA-3@gated-at.bofh.it>
[not found] ` <6tmHL-Oq-5@gated-at.bofh.it>
[not found] ` <6tpZ7-5Tj-13@gated-at.bofh.it>
2006-07-01 13:19 ` Bodo Eggert
2006-07-02 9:56 ` Alan Cox
2006-07-02 22:04 ` Bodo Eggert
2006-06-22 17:33 Jason Baron
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