From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Jim Gettys <jg@pa.dec.com>,
Andi Kleen <ak@suse.de>, Ingo Molnar <mingo@elte.hu>,
Andrea Arcangeli <andrea@suse.de>,
Rik van Riel <riel@conectiva.com.br>,
Byron Stanoszek <gandalf@winds.org>,
MM mailing list <linux-mm@kvack.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] VM fix for 2.4.0-test9 & OOM handler
Date: Mon, 9 Oct 2000 22:51:34 +0100 (BST) [thread overview]
Message-ID: <E13ikpc-0002uZ-00@the-village.bc.nu> (raw)
In-Reply-To: <Pine.LNX.4.10.10010091435420.1438-100000@penguin.transmeta.com> from "Linus Torvalds" at Oct 09, 2000 02:38:10 PM
> > across AF_UNIX sockets so the mechanism is notionally there to provide the
> > credentials to X, just not to use them
>
> The problem is that there is no way to keep track of them afterwards.
If you use mmap for your allocator then beancounter will get it right. Every
resource knows which beancounter it was charged too. It adds an overhead the
average desktop user won't like but which is pretty much essential to do real
mainframe world operation. So it would become
seteuid(Client->passed_euid);
mmap(buffer in pages)
seteuid(getuid());
With lightwait counting semantics its hard to make any tracking system work
well in the corner cases like resources that survive process death.
Alan
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next prev parent reply other threads:[~2000-10-09 21:51 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-06 18:59 Rik van Riel
2000-10-06 20:19 ` Byron Stanoszek
2000-10-06 20:31 ` Rik van Riel
2000-10-09 10:12 ` Marco Colombo
2000-10-09 11:27 ` Byron Stanoszek
2000-10-09 16:26 ` Kurt Garloff
2000-10-09 18:29 ` Jamie Lokier
2000-10-09 17:27 ` Ingo Molnar
2000-10-09 17:25 ` Mark Hahn
2000-10-09 17:37 ` Ingo Molnar
2000-10-09 17:47 ` Ed Tomlinson
2000-10-09 18:01 ` Ingo Molnar
2000-10-09 18:14 ` Rik van Riel
2000-10-09 18:47 ` Ingo Molnar
2000-10-09 18:52 ` Rik van Riel
2000-10-09 19:27 ` Ingo Molnar
2000-10-09 19:38 ` Marco Colombo
2000-10-06 21:27 ` David Weinehall
2000-10-06 23:21 ` David Weinehall
2000-10-09 18:28 ` Andrea Arcangeli
2000-10-09 18:42 ` Ingo Molnar
2000-10-09 19:05 ` Andrea Arcangeli
2000-10-09 19:07 ` Rik van Riel
2000-10-09 19:42 ` Andrea Arcangeli
2000-10-09 20:06 ` Ingo Molnar
2000-10-09 20:06 ` Andi Kleen
2000-10-09 20:19 ` Ingo Molnar
2000-10-09 20:12 ` Rik van Riel
2000-10-09 20:24 ` Ingo Molnar
2000-10-09 20:18 ` Rik van Riel
2000-10-10 3:23 ` Philipp Rumpf
2000-10-09 20:38 ` James Sutherland
2000-10-09 20:40 ` Rik van Riel
2000-10-10 9:59 ` J.A. Sutherland
2000-10-09 20:44 ` Andrea Arcangeli
2000-10-09 21:52 ` Aaron Sethman
2000-10-09 21:54 ` Rik van Riel
2000-10-09 22:29 ` FORT David
2000-10-09 20:52 ` Linus Torvalds
2000-10-09 20:58 ` Andi Kleen
2000-10-09 21:21 ` Jim Gettys
2000-10-09 21:28 ` Alan Cox
2000-10-09 21:34 ` Andi Kleen
2000-10-09 21:38 ` Linus Torvalds
2000-10-09 21:39 ` Rik van Riel
2000-10-09 21:44 ` Linus Torvalds
2000-10-10 13:17 ` Marco Colombo
2000-10-09 21:44 ` Jim Gettys
2000-10-09 21:50 ` Linus Torvalds
2000-10-09 22:07 ` Jim Gettys
2000-10-09 23:13 ` Albert D. Cahalan
2000-10-09 23:16 ` Rik van Riel
2000-10-09 23:46 ` Jim Gettys
2000-10-10 9:46 ` Jamie Lokier
2000-10-10 14:41 ` Rogier Wolff
2000-10-10 17:28 ` Linus Torvalds
2000-10-09 21:51 ` Alan Cox [this message]
2000-10-09 21:40 ` Jim Gettys
2000-10-09 21:05 ` Rik van Riel
2000-10-09 22:08 ` Gerrit.Huizenga
2000-10-09 22:34 ` Byron Stanoszek
2000-10-09 22:57 ` Rik van Riel
2000-10-10 0:25 ` [RFC] New ideas for the " Byron Stanoszek
2000-10-09 20:11 ` [PATCH] VM fix for 2.4.0-test9 & " Andrea Arcangeli
2000-10-09 20:15 ` Rik van Riel
2000-10-09 20:40 ` Linus Torvalds
2000-10-09 20:47 ` Rik van Riel
2000-10-09 20:57 ` Ingo Molnar
2000-10-09 21:10 ` Peter Waltenberg
2000-10-09 22:25 ` Andrea Arcangeli
2000-10-09 22:59 ` Peter Waltenberg
2000-10-09 23:52 ` Andrea Arcangeli
2000-10-09 23:10 ` Rik van Riel
2000-10-09 21:10 ` Alan Cox
2000-10-09 21:25 ` Ingo Molnar
2000-10-09 21:26 ` Rik van Riel
2000-10-09 21:38 ` Ingo Molnar
2000-10-09 21:34 ` Rik van Riel
2000-10-10 9:09 ` john slee
2000-10-09 20:06 ` Rik van Riel
2000-10-09 20:18 ` Andrea Arcangeli
2000-10-10 3:29 ` Philipp Rumpf
2000-10-10 15:06 ` Rik van Riel
2000-10-10 15:24 ` Philipp Rumpf
2000-10-10 15:30 ` Rik van Riel
2000-10-10 15:37 ` Philipp Rumpf
2000-10-09 20:13 ` Ingo Molnar
2000-10-09 20:08 ` Rik van Riel
2000-10-09 20:22 ` Ingo Molnar
2000-10-09 20:28 ` David Ford
2000-10-09 20:34 ` Rik van Riel
2000-10-09 20:45 ` David Ford
2000-10-10 4:22 ` Andreas Dilger
2000-10-10 4:30 ` David Ford
2000-10-10 9:54 ` Jamie Lokier
2000-10-09 23:35 ` Ingo Oeser
2000-10-10 15:07 ` [PATCH] OOM killer API (was: [PATCH] VM fix for 2.4.0-test9 & OOM handler) Ingo Oeser
2000-10-10 15:32 ` Rik van Riel
2000-10-10 16:11 ` Ingo Oeser
2000-10-10 18:57 ` Tom Rini
2000-10-10 20:58 ` Rik van Riel
2000-10-10 22:46 ` Tom Rini
2000-10-09 19:30 ` [PATCH] VM fix for 2.4.0-test9 & OOM handler David Ford
2000-10-09 19:58 ` Andrea Arcangeli
2000-10-09 20:14 ` David Ford
2000-10-09 20:05 ` Rik van Riel
2000-10-09 21:07 ` Alan Cox
2000-10-10 3:38 ` Philipp Rumpf
2000-10-10 14:07 ` Andrea Arcangeli
2000-10-09 18:07 Wagner, Dave
2000-10-09 20:27 ` James Sutherland
2000-10-09 19:06 Hubertus Franke/Watson/IBM
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