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From: Andrea Arcangeli <andrea@suse.de>
To: Peter Waltenberg <peterw@dascom.com.au>
Cc: Ingo Molnar <mingo@elte.hu>, MM mailing list <linux-mm@kvack.org>,
	Byron Stanoszek <gandalf@winds.org>,
	Rik van Riel <riel@conectiva.com.br>,
	Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [PATCH] VM fix for 2.4.0-test9 & OOM handler
Date: Tue, 10 Oct 2000 00:25:20 +0200	[thread overview]
Message-ID: <20001010002520.B8709@athlon.random> (raw)
In-Reply-To: <XFMail.20001010071013.peterw@mulga.surf.ap.tivoli.com>; from peterw@dascom.com.au on Tue, Oct 10, 2000 at 07:10:13AM +1000

On Tue, Oct 10, 2000 at 07:10:13AM +1000, Peter Waltenberg wrote:
> People seem to be forgetting (again), that Rik's code is *REALLY* an

Please explain why you think "people" is forgetting that. At least from my part
I wasn't forgetting that and so far I didn't read any email that made me to
think others are forgetting that.

> It's probably reasonable to not kill init, but the rest just don't matter.

Killing init is a kernel bug.

> Without the OOM killer the machine would have locked up and you'd lose that 3

Grab 2.2.18pre15aa1 and try to lockup the machine if you can.

> At least with Rik's code you end up with a usable machine afterwards which is
> a major improvement.

If current 2.4.x lockups during OOM that's because of bugs introduced during
2.[34].x. The oom killer is completly irrelevant to the stability of the kernel,
the oom killer only deals with the _selection_ of the task to kill. OOM
detection is a completly orthogonal issue.

If something the oom killer can introduce a lockup condition if there isn't
a mechamism to fallback killing the current task (all the other tasks
may be sleeping on a down-nfs-server in interruptible mode).

Andrea
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  reply	other threads:[~2000-10-09 22:25 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
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 [this message]
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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