From: Eric Sandeen <sandeen@sandeen.net>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andrea Arcangeli <andrea@suse.de>, Matt Mackall <mpm@selenic.com>,
Rene Herman <rene.herman@gmail.com>,
Ray Lee <ray-lk@madrabbit.org>, Bodo Eggert <7eggert@gmx.de>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Jesper Juhl <jesper.juhl@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
William Lee Irwin III <wli@holomorphy.com>,
David Chinner <dgc@sgi.com>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...?
Date: Fri, 27 Jul 2007 08:02:13 -0500 [thread overview]
Message-ID: <46A9ECD5.3050801@sandeen.net> (raw)
In-Reply-To: <20070719124419.48c3d610@the-village.bc.nu>
Alan Cox wrote:
>> I don't think they're necessarily bugs. IMHO the WARN_ON is better off
>> at 7k level like it is today with the current STACK_WARN. 4k for a
>> stack for common code really is small. I doubt you're going to find
>
> You want the limit settable. On a production system you want to set the
> limit to somewhere appropriate for the stack size used. When debugging
> (eg to remove any last few bogus users of 8K stack space) you want to be
> able to set it to just under 4K
Hm, when cramming cxfs into 4k at sgi, I had a patch that did just that
for debugging (warn about encroaching on 4k without actually tipping
over, with a settable threshold...)
Maybe I should resurrect it & send it out...
(FWIW I think I recall that the warning itself sometimes tipped the
scales enough on 4k stacks to bring the box down)
-eric
next prev parent reply other threads:[~2007-07-27 13:36 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <8FO1e-2jW-35@gated-at.bofh.it>
[not found] ` <8FYWD-2eS-7@gated-at.bofh.it>
[not found] ` <8GdsH-8dc-13@gated-at.bofh.it>
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[not found] ` <8GVjY-PL-25@gated-at.bofh.it>
2007-07-15 17:17 ` [PATCH][RFC] 4K stacks default, not a debug thing any more...? Bodo Eggert
2007-07-15 17:35 ` Arjan van de Ven
2007-07-15 18:32 ` Måns Rullgård
2007-07-15 17:46 ` Rene Herman
2007-07-16 13:43 ` Bodo Eggert
2007-07-16 22:28 ` Rene Herman
2007-07-16 22:37 ` Ray Lee
2007-07-16 22:54 ` Alan Cox
2007-07-16 22:53 ` Ray Lee
2007-07-16 23:05 ` Rene Herman
2007-07-16 23:15 ` Ray Lee
2007-07-18 0:14 ` Alan Cox
2007-07-18 6:39 ` Ray Lee
2007-07-17 17:01 ` William Lee Irwin III
2007-07-17 23:39 ` Jesper Juhl
2007-07-18 0:22 ` Rene Herman
2007-07-16 22:54 ` Jesper Juhl
2007-07-16 23:01 ` Rene Herman
2007-07-16 23:42 ` Bodo Eggert
2007-07-16 23:51 ` Jesper Juhl
2007-07-19 19:34 ` Denis Vlasenko
2007-07-19 20:04 ` Bodo Eggert
2007-07-16 22:55 ` Rene Herman
2007-07-16 23:07 ` Matt Mackall
2007-07-16 23:12 ` Rene Herman
2007-07-16 23:27 ` Matt Mackall
2007-07-16 23:32 ` Rene Herman
2007-07-18 2:38 ` Rene Herman
2007-07-18 16:54 ` Matt Mackall
2007-07-18 17:17 ` Rene Herman
2007-07-19 0:15 ` Andrea Arcangeli
2007-07-19 0:39 ` Alan Cox
2007-07-19 1:33 ` Andrea Arcangeli
2007-07-19 1:37 ` Matt Mackall
2007-07-19 1:56 ` Rene Herman
2007-07-19 11:24 ` Andrea Arcangeli
2007-07-19 11:44 ` Alan Cox
2007-07-27 13:02 ` Eric Sandeen [this message]
2007-07-27 17:38 ` Alan Cox
2007-07-27 18:31 ` Satyam Sharma
2007-08-01 3:53 ` Eric Sandeen
2007-08-01 8:11 ` Dan Merillat
2007-08-01 10:04 ` Neil Brown
2007-08-10 4:51 ` Dan Merillat
2007-08-10 4:59 ` Neil Brown
2007-08-01 13:33 ` Andrea Arcangeli
2007-08-01 15:44 ` Alan Cox
2007-08-10 1:03 ` Dan Merillat
2007-07-19 9:23 ` Alan Cox
2007-07-19 10:52 ` Andrea Arcangeli
2007-07-27 13:03 ` Eric Sandeen
2007-07-27 17:18 ` Krzysztof Halasa
2007-07-19 0:41 ` Matt Mackall
2007-07-19 0:48 ` Rene Herman
2007-07-19 1:28 ` Matt Mackall
2007-07-16 23:13 ` Ray Lee
2007-07-16 23:22 ` Rene Herman
2007-07-16 23:35 ` Jesper Juhl
2007-07-16 23:40 ` Ray Lee
2007-07-17 0:57 ` Rene Herman
2007-07-17 16:14 ` Shawn Bohrer
2007-07-17 16:52 ` Rene Herman
2007-07-17 17:45 ` Zan Lynx
2007-07-18 0:16 ` Alan Cox
2007-07-16 23:45 ` Bodo Eggert
2007-07-17 0:28 ` Rene Herman
2007-07-17 10:06 ` Bodo Eggert
2007-07-17 14:38 ` Rene Herman
2007-07-17 23:19 ` Bodo Eggert
2007-07-17 23:29 ` Arjan van de Ven
2007-07-19 17:20 ` Bodo Eggert
2007-07-17 23:57 ` Rene Herman
2007-07-19 17:05 ` Bodo Eggert
2007-07-16 23:26 ` utz lehmann
2007-07-16 23:39 ` Måns Rullgård
2007-07-17 1:00 ` Rene Herman
2007-07-17 14:45 ` John Stoffel
2007-07-17 23:46 ` utz lehmann
[not found] <8IdHQ-7Pm-25@gated-at.bofh.it>
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[not found] ` <8IdHQ-7Pm-49@gated-at.bofh.it>
[not found] ` <8IdHQ-7Pm-23@gated-at.bofh.it>
2007-07-18 11:09 ` Nick Craig-Wood
[not found] <8HfVl-71J-15@gated-at.bofh.it>
[not found] ` <8Hgoq-7Cd-21@gated-at.bofh.it>
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[not found] ` <8HYzd-PZ-25@gated-at.bofh.it>
[not found] ` <8HZlt-27o-7@gated-at.bofh.it>
2007-07-18 8:37 ` Nick Craig-Wood
[not found] ` <8HHRD-rK-19@gated-at.bofh.it>
[not found] ` <8HI1j-Dn-21@gated-at.bofh.it>
[not found] ` <8HIb2-PD-5@gated-at.bofh.it>
[not found] ` <8IrUr-4SZ-9@gated-at.bofh.it>
[not found] ` <8IsdO-5g4-7@gated-at.bofh.it>
[not found] ` <8It9R-6Eb-3@gated-at.bofh.it>
[not found] ` <8IAkZ-WW-1@gated-at.bofh.it>
2007-07-19 13:37 ` Bodo Eggert
2007-07-11 17:16 Jesper Juhl
2007-07-11 17:54 ` Zan Lynx
2007-07-11 20:05 ` Daniel Phillips
2007-07-11 22:09 ` Neil Brown
2007-07-12 3:15 ` Daniel Phillips
2007-07-12 4:16 ` David Chinner
2007-07-12 4:59 ` Ray Lee
2007-07-12 20:24 ` Jesper Juhl
2007-07-13 0:34 ` Jeremy Fitzhardinge
2007-07-13 2:25 ` Jesper Juhl
2007-07-13 4:14 ` Jeremy Fitzhardinge
2007-07-13 9:19 ` Jan Engelhardt
2007-07-13 13:20 ` Rene Herman
2007-07-14 19:17 ` Matt Mackall
2007-07-14 22:19 ` Rene Herman
2007-07-16 23:38 ` Matt Mackall
2007-07-17 13:46 ` Rene Herman
2007-07-18 17:19 ` Phillip Susi
2007-07-18 17:32 ` Rene Herman
2007-07-18 17:32 ` Alan Cox
2007-07-18 17:33 ` Phillip Susi
2007-07-14 19:42 ` Matt Mackall
2007-07-12 6:08 ` Jeremy Fitzhardinge
2007-07-12 6:37 ` David Chinner
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