From: Andi Kleen <andi@firstfloor.org>
To: Willy Tarreau <w@1wt.eu>
Cc: Adrian Bunk <bunk@kernel.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Shawn Bohrer <shawn.bohrer@gmail.com>,
Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: x86: 4kstacks default
Date: Sun, 20 Apr 2008 15:06:23 +0200 [thread overview]
Message-ID: <480B3FCF.1090207@firstfloor.org> (raw)
In-Reply-To: <20080420124717.GH8474@1wt.eu>
Willy Tarreau wrote:
> Clearly if I have the choice between a kernel which can run 50k threads
> and a kernel which does not crash under me during an I/O error, I choose
> the later! I don't even imagine what purpose 50k kernel threads may serve.
I don't know either but it was quoted to me earlier as the primary
reason 4k stacks were introduced.
> I have nothing against changing the default setting to 4k provided that
> it is easy to get back to the save setting
So you're saying that only advanced users who understand all their
CONFIG options should have the safe settings? And everyone else
the "only explodes once a week" mode?
For me that is exactly the wrong way around.
If someone is sure they know what they're doing they can set whatever
crazy settings they want (given there is a quick way to check
for the crazy settings in oops reports so that I can ignore those), but
the default should be always safe and optimized for reliability.
-Andi
next prev parent reply other threads:[~2008-04-20 13:06 UTC|newest]
Thread overview: 162+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200804181737.m3IHbabI010051@hera.kernel.org>
2008-04-18 21:29 ` x86: 4kstacks default Andrew Morton
2008-04-19 14:23 ` Ingo Molnar
2008-04-19 14:35 ` Oliver Pinter
2008-04-19 15:19 ` Adrian Bunk
2008-04-19 15:42 ` Oliver Pinter
2008-04-20 1:56 ` Eric Sandeen
2008-04-20 7:42 ` Adrian Bunk
2008-04-20 16:59 ` Chris Wedgwood
[not found] ` <480AA2B9.10305__23983.3358479247$1208657639$gmane$org@sandeen.net>
2008-04-20 11:48 ` Andi Kleen
2008-04-19 14:59 ` Shawn Bohrer
2008-04-19 18:00 ` Arjan van de Ven
2008-04-19 18:33 ` Ingo Molnar
2008-04-19 19:10 ` Stefan Richter
2008-04-20 2:36 ` Eric Sandeen
2008-04-20 6:11 ` Arjan van de Ven
2008-04-20 22:53 ` David Chinner
2008-04-20 8:09 ` Adrian Bunk
2008-04-20 8:06 ` Alan Cox
2008-04-20 8:51 ` Adrian Bunk
2008-04-20 9:36 ` Alan Cox
2008-04-20 10:44 ` Adrian Bunk
2008-04-20 11:02 ` Alan Cox
2008-04-20 11:54 ` Adrian Bunk
2008-04-20 11:37 ` Alan Cox
2008-04-20 12:18 ` Adrian Bunk
2008-04-20 14:05 ` Eric Sandeen
2008-04-20 14:21 ` Adrian Bunk
2008-04-20 14:56 ` Eric Sandeen
2008-04-20 15:41 ` Arjan van de Ven
2008-04-20 16:03 ` Adrian Bunk
2008-04-21 3:30 ` Alexander E. Patrakov
2008-04-23 8:57 ` Helge Hafting
2008-04-21 7:45 ` Denys Vlasenko
2008-04-21 9:55 ` Andi Kleen
2008-04-21 13:29 ` Eric Sandeen
2008-04-21 19:51 ` Denys Vlasenko
2008-04-21 20:28 ` Denys Vlasenko
2008-04-22 1:28 ` David Chinner
2008-04-22 2:33 ` [PATCH] xfs: do not pass size into kmem_free, it's unused Denys Vlasenko
2008-04-22 3:03 ` [PATCH] xfs: do not pass unused params to xfs_flush_pages Denys Vlasenko
2008-04-22 3:14 ` [PATCH] xfs: use smaller int param in call " Denys Vlasenko
2008-04-22 3:18 ` Eric Sandeen
2008-04-22 4:10 ` David Chinner
2008-04-22 9:42 ` [PATCH] xfs: remove unused parameter of xfs_qm_dqpurge Denys Vlasenko
2008-04-22 10:16 ` [PATCH] xfs: remove unused parameter of xfs_iomap_write_allocate Denys Vlasenko
2008-04-22 11:20 ` [PATCH] xfs: #define out unused parameters of xfs_bmap_add_free and xfs_btree_read_bufl Denys Vlasenko
2008-04-22 11:48 ` [PATCH] xfs: #define out unused parameters for seven functions in xfs_trans.h Denys Vlasenko
2008-04-22 11:51 ` Denys Vlasenko
2008-04-22 13:32 ` [PATCH] xfs: remove unused params from functions in xfs_dir2_leaf.h Denys Vlasenko
2008-04-22 13:40 ` [PATCH] xfs: remove unused params from functions in xfs/quota/* Denys Vlasenko
2008-04-22 13:46 ` [PATCH] xfs: expose no-op xfs_put_perag() Denys Vlasenko
2008-04-22 14:08 ` Eric Sandeen
2008-04-22 23:16 ` David Chinner
2008-04-22 23:08 ` [PATCH] xfs: remove unused params from functions in xfs/quota/* David Chinner
2008-04-22 22:47 ` [PATCH] xfs: #define out unused parameters for seven functions in xfs_trans.h David Chinner
2008-04-22 14:28 ` [PATCH] xfs: #define out unused parameters of xfs_bmap_add_free and xfs_btree_read_bufl Adrian Bunk
2008-04-22 16:17 ` Denys Vlasenko
2008-04-22 17:21 ` Adrian Bunk
2008-04-22 17:26 ` Eric Sandeen
2008-04-22 17:50 ` Denys Vlasenko
2008-04-22 18:28 ` [PATCH] xfs: #define out unused parameters of?xfs_bmap_add_free " Adrian Bunk
2008-04-22 19:32 ` Denys Vlasenko
2008-04-22 23:53 ` Adrian Bunk
2008-04-22 20:46 ` [PATCH] xfs: #define out unused parameters of xfs_bmap_add_free " Denys Vlasenko
2008-04-22 22:43 ` David Chinner
2008-04-22 22:33 ` [PATCH] xfs: remove unused parameter of xfs_iomap_write_allocate David Chinner
2008-04-22 22:11 ` [PATCH] xfs: remove unused parameter of xfs_qm_dqpurge David Chinner
2008-04-23 8:18 ` Christoph Hellwig
2008-04-22 22:08 ` [PATCH] xfs: use smaller int param in call to xfs_flush_pages David Chinner
2008-04-22 3:15 ` [PATCH] xfs: do not pass unused params " Eric Sandeen
2008-04-22 8:57 ` Denys Vlasenko
2008-04-22 9:56 ` Jakub Jelinek
2008-04-22 10:33 ` Denys Vlasenko
2008-04-22 12:51 ` Eric Sandeen
2008-04-22 22:07 ` David Chinner
2008-04-22 3:09 ` [PATCH] xfs: do not pass size into kmem_free, it's unused Eric Sandeen
2008-04-22 3:35 ` Eric Sandeen
2008-04-22 22:02 ` David Chinner
2008-04-22 12:48 ` x86: 4kstacks default Denys Vlasenko
2008-04-22 13:01 ` Adrian Bunk
2008-04-22 13:51 ` Denys Vlasenko
2008-04-27 19:27 ` Jörn Engel
2008-04-27 23:02 ` Denys Vlasenko
2008-04-27 23:08 ` Eric Sandeen
2008-04-28 0:00 ` Denys Vlasenko
2008-04-20 12:37 ` Andi Kleen
2008-04-20 12:27 ` Andi Kleen
2008-04-20 12:32 ` Adrian Bunk
2008-04-20 12:47 ` Willy Tarreau
2008-04-20 13:06 ` Andi Kleen [this message]
2008-04-20 13:30 ` Adrian Bunk
2008-04-20 13:34 ` Willy Tarreau
2008-04-20 14:04 ` Adrian Bunk
2008-04-28 17:56 ` Bill Davidsen
2008-04-20 13:21 ` Adrian Bunk
2008-04-23 9:13 ` Helge Hafting
2008-04-23 23:29 ` David Chinner
2008-04-24 15:46 ` Eric Sandeen
2008-04-28 18:38 ` Bill Davidsen
2008-04-20 13:27 ` Mark Lord
2008-04-20 13:38 ` Willy Tarreau
2008-04-20 14:19 ` Andi Kleen
2008-04-20 16:41 ` Jörn Engel
2008-04-20 17:19 ` Andi Kleen
2008-04-20 17:43 ` Jörn Engel
2008-04-20 18:19 ` Andi Kleen
2008-04-20 18:50 ` Arjan van de Ven
2008-04-20 20:09 ` Andi Kleen
2008-04-20 21:50 ` Andrew Morton
2008-04-20 21:55 ` Andi Kleen
2008-04-21 14:29 ` Ingo Molnar
2008-04-20 20:32 ` Jörn Engel
2008-04-20 20:35 ` Jörn Engel
2008-04-20 14:09 ` Eric Sandeen
2008-04-20 14:20 ` Willy Tarreau
2008-04-20 14:40 ` Eric Sandeen
2008-04-20 15:44 ` Daniel Hazelton
2008-04-20 17:26 ` Andi Kleen
2008-04-20 18:48 ` Arjan van de Ven
2008-04-20 20:01 ` Andi Kleen
2008-04-20 20:43 ` Daniel Hazelton
2008-04-20 21:40 ` Andi Kleen
2008-04-20 22:17 ` Bernd Eckenfels
2008-04-20 23:48 ` Avi Kivity
2008-04-21 1:45 ` Daniel Hazelton
2008-04-21 7:51 ` Andi Kleen
2008-04-21 17:34 ` Daniel Hazelton
2008-04-20 22:33 ` Arjan van de Ven
2008-04-20 22:33 ` Arjan van de Ven
2008-04-20 23:16 ` Andi Kleen
2008-04-21 5:53 ` Arjan van de Ven
2008-04-21 3:06 ` Eric Sandeen
2008-04-20 21:45 ` Andrew Morton
2008-04-20 21:51 ` Andi Kleen
2008-04-22 18:20 ` Romano Giannetti
2008-04-23 5:03 ` Denys Vlasenko
2008-04-23 5:21 ` Daniel Hazelton
2008-04-23 5:25 ` david
2008-04-23 5:41 ` Daniel Hazelton
2008-04-23 7:46 ` Romano Giannetti
2008-04-23 11:24 ` Stefan Richter
2008-04-23 12:15 ` Romano Giannetti
2008-04-23 15:59 ` Lennart Sorensen
2008-04-20 13:22 ` Mark Lord
2008-04-19 17:49 ` Andrew Morton
2008-04-25 17:39 ` Parag Warudkar
2008-04-20 3:29 ` Eric Sandeen
2008-04-20 12:36 ` Andi Kleen
2008-04-21 14:31 ` Ingo Molnar
2008-04-23 5:27 ` Benjamin Herrenschmidt
2008-04-23 23:36 ` David Chinner
2008-04-24 0:45 ` Arjan van de Ven
2008-04-24 9:52 ` Christoph Hellwig
2008-04-24 12:25 ` Peter Zijlstra
2008-04-24 15:41 ` Chris Mason
2008-04-24 18:30 ` Alexander van Heukelum
2008-04-24 0:56 ` Benjamin Herrenschmidt
[not found] <ak6tq-32p-7@gated-at.bofh.it>
[not found] ` <ak6tq-32p-5@gated-at.bofh.it>
2008-04-19 10:56 ` Bodo Eggert
[not found] ` <akFri-4yB-25@gated-at.bofh.it>
[not found] ` <akGQg-7TX-1@gated-at.bofh.it>
[not found] ` <akKhi-91-37@gated-at.bofh.it>
2008-04-20 20:23 ` Bodo Eggert
2008-04-20 20:59 ` Daniel Hazelton
2008-04-21 20:05 ` Bodo Eggert
2008-04-22 15:34 ` Daniel Hazelton
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