From: William Lee Irwin III <wli@holomorphy.com>
To: Dave Jones <davej@redhat.com>
Cc: Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org,
James Antill <james.antill@redhat.com>,
Bryn Reeves <breeves@redhat.com>,
rmk@arm.linux.org.uk
Subject: Re: don't let mmap allocate down to zero
Date: Wed, 26 Jan 2005 21:28:56 -0800 [thread overview]
Message-ID: <20050127052856.GT10843@holomorphy.com> (raw)
In-Reply-To: <20050127051855.GB24107@redhat.com>
On Wed, Jan 26, 2005 at 09:09:27PM -0800, William Lee Irwin III wrote:
>> There's a long discussion here, in which no one appears to have noticed
>> that SHLIB_BASE does not exist in mainline. Is anyone else awake here?
On Thu, Jan 27, 2005 at 12:18:56AM -0500, Dave Jones wrote:
> It's an exec-shield'ism. Rik likely was working off a Red Hat/Fedora
> kernel tree.
It does change things in a substantial way. Namely, the lower address
space boundary doesn't exist in mainline at all, and so its enforcement
requires introduction. Furthermore, mainline must concern itself with
all Linux-supported architectures (not distro-supported architectures),
not just ia32/x86-64, so there is also FIRST_USER_PGD_NR to take into
account as opposed to pulling magic ia32/x86-64 -specific numbers out
of a hat and splattering them all over core code. Not that you had
anything to do with any of this.
-- wli
next prev parent reply other threads:[~2005-01-27 5:29 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-26 16:18 don't let mmap allocate down to zero Rik van Riel
2005-01-26 16:38 ` linux-os
2005-01-26 17:05 ` Sytse Wielinga
2005-01-26 17:34 ` Chris Friesen
2005-01-26 17:57 ` Bryn Reeves
2005-01-26 18:37 ` linux-os
2005-01-26 18:54 ` Rik van Riel
2005-01-26 19:09 ` linux-os
2005-01-26 19:13 ` Chris Friesen
2005-01-26 19:08 ` Chris Friesen
2005-01-26 18:10 ` Olivier Galibert
2005-01-26 18:20 ` linux-os
2005-01-26 18:31 ` Olivier Galibert
2005-01-26 18:39 ` linux-os
2005-01-26 19:41 ` Arjan van de Ven
2005-01-26 20:26 ` Andy Isaacson
2005-01-26 20:42 ` Rik van Riel
2005-01-26 22:12 ` Kyle Moffett
2005-01-26 23:31 ` Brian Gerst
2005-01-26 17:25 ` William Lee Irwin III
2005-01-27 5:09 ` William Lee Irwin III
2005-01-27 5:18 ` Dave Jones
2005-01-27 5:28 ` William Lee Irwin III [this message]
2005-01-27 9:29 ` Mikael Pettersson
2005-01-27 12:52 ` William Lee Irwin III
2005-01-27 14:25 ` Russell King
2005-01-27 15:12 ` William Lee Irwin III
2005-01-27 19:22 ` Rik van Riel
2005-01-27 20:44 ` William Lee Irwin III
2005-01-27 20:58 ` Rik van Riel
2005-01-27 21:13 ` William Lee Irwin III
2005-01-27 21:28 ` Rik van Riel
2005-01-28 5:30 ` William Lee Irwin III
2005-01-28 13:01 ` Rik van Riel
2005-01-28 14:14 ` Hugh Dickins
2005-01-28 14:26 ` William Lee Irwin III
2005-01-28 15:41 ` Rik van Riel
2005-01-28 15:53 ` Hugh Dickins
2005-01-27 21:58 ` linux-os
2005-01-27 14:26 ` Mikael Pettersson
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