From: Mike McCormack <mike@codeweavers.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jakub Jelinek <jakub@redhat.com>,
Arjan van de Ven <arjanv@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: WINE + NX (No eXecute) support for x86, 2.6.7-rc2-bk2
Date: Tue, 08 Jun 2004 21:01:13 +0900 [thread overview]
Message-ID: <40C5AA89.4060803@codeweavers.com> (raw)
In-Reply-To: <20040608103221.GA7632@elte.hu>
Ingo Molnar wrote:
>>I did not investigate this, but others who did think that it is not
>>possible to create a segment that is reserve only so that does not
>>unnecessarily consume virtual memory. Apparently ELF allows it, but
>>Linux doesn't.
>
>
> what do you mean by "Linux doesn't"?
Apparently Linux will back all segments by swap space, even if they're
marked as non-accessable. Maybe I was told the wrong thing? Or maybe
the it's just difficult to create such a segment, as Jukub was saying?
In any case, the solution we have now reserves exactly the amount of
memory that is needed. If we were to use a fixed size segment, we would
be reserving too much memory most of the time, and preventing shared
libraries being loaded at their prefered addresses.
Mike
next prev parent reply other threads:[~2004-06-08 10:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-06 6:09 WINE + NX (No eXecute) support for x86, 2.6.7-rc2-bk2 Mike McCormack
2004-06-06 5:26 ` Ingo Molnar
2004-06-06 8:29 ` Mike McCormack
2004-06-06 7:32 ` Arjan van de Ven
2004-06-08 9:20 ` Jakub Jelinek
2004-06-08 11:15 ` Mike McCormack
2004-06-08 10:32 ` Ingo Molnar
2004-06-08 12:01 ` Mike McCormack [this message]
2004-06-09 1:40 ` John Reiser
2004-06-09 2:27 ` Paul Jackson
2004-06-06 7:32 ` Christoph Hellwig
2004-06-06 9:13 ` Mike McCormack
2004-06-06 8:10 ` Christoph Hellwig
2004-06-06 9:37 ` Mike McCormack
2004-06-06 8:39 ` Christoph Hellwig
2004-06-06 8:43 ` Christoph Hellwig
2004-06-06 10:20 ` Mike McCormack
2004-06-06 11:17 ` Felipe Alfaro Solana
2004-06-07 4:20 ` Horst von Brand
2004-06-07 14:19 ` Ingo Molnar
2004-06-08 21:50 ` Robert White
2004-06-08 21:57 ` Robert White
2004-06-09 16:53 ` Jesse Pollard
2004-06-09 20:53 ` Robert White
2004-06-10 13:35 ` Jesse Pollard
2004-06-10 21:13 ` Robert White
2004-06-11 9:50 ` Marc Bevand
2004-06-09 17:14 ` Jesper Juhl
2004-06-09 18:02 ` Evaldo Gardenali
2004-06-09 19:58 ` Felipe Alfaro Solana
2004-06-10 18:07 ` Stefanos Harhalakis
2004-06-06 11:38 ` David Woodhouse
2004-06-06 15:58 ` Mike McCormack
2004-06-07 8:49 ` David Howells
[not found] <23Y4Y-6F5-1@gated-at.bofh.it>
[not found] ` <240qb-8ir-7@gated-at.bofh.it>
[not found] ` <240Tc-gV-5@gated-at.bofh.it>
[not found] ` <2412S-pU-3@gated-at.bofh.it>
[not found] ` <24vX0-81P-7@gated-at.bofh.it>
2004-06-07 17:40 ` Andi Kleen
2004-06-08 9:42 ` Eric W. Biederman
[not found] ` <24WNz-4pO-3@gated-at.bofh.it>
2004-06-10 18:57 ` Bill Davidsen
2004-06-10 21:33 ` Robert White
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=40C5AA89.4060803@codeweavers.com \
--to=mike@codeweavers.com \
--cc=arjanv@redhat.com \
--cc=jakub@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.