From: joe@perches.com (Joe Perches)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] ARM 4Kstacks: introduction
Date: Tue, 18 Oct 2011 17:31:41 -0700 [thread overview]
Message-ID: <1318984301.7569.9.camel@Joe-Laptop> (raw)
In-Reply-To: <4E9E1944.80601@am.sony.com>
On Tue, 2011-10-18 at 17:26 -0700, Tim Bird wrote:
> On 10/18/2011 05:14 PM, Joe Perches wrote:
> > On Tue, 2011-10-18 at 16:27 -0700, Tim Bird wrote:
> >> I'm about to submit a set of patches (really pretty small)
> >> to add 4K stack support to ARM (defaulted to 'N').
> > When 4k stacks went away, I thought it safe enough
> > to submit vsnprintf recursion using %pV.
> Even inside Sony, usage of 4K stacks is limited
> to some very special cases, where memory is exceedingly
> tight (we have one system with 4M of RAM). And we
> don't mind lopping off features or coding around
> problem areas to support our special case.
I believe CONFIG_PRINTK=n assures no %pV problem.
WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Tim Bird <tim.bird@am.sony.com>
Cc: Russell King <rmk@arm.linux.org.uk>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Arnd Bergmann <arnd@arndb.de>, Andi Kleen <andi@firstfloor.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/3] ARM 4Kstacks: introduction
Date: Tue, 18 Oct 2011 17:31:41 -0700 [thread overview]
Message-ID: <1318984301.7569.9.camel@Joe-Laptop> (raw)
In-Reply-To: <4E9E1944.80601@am.sony.com>
On Tue, 2011-10-18 at 17:26 -0700, Tim Bird wrote:
> On 10/18/2011 05:14 PM, Joe Perches wrote:
> > On Tue, 2011-10-18 at 16:27 -0700, Tim Bird wrote:
> >> I'm about to submit a set of patches (really pretty small)
> >> to add 4K stack support to ARM (defaulted to 'N').
> > When 4k stacks went away, I thought it safe enough
> > to submit vsnprintf recursion using %pV.
> Even inside Sony, usage of 4K stacks is limited
> to some very special cases, where memory is exceedingly
> tight (we have one system with 4M of RAM). And we
> don't mind lopping off features or coding around
> problem areas to support our special case.
I believe CONFIG_PRINTK=n assures no %pV problem.
next prev parent reply other threads:[~2011-10-19 0:31 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-18 23:27 [PATCH 0/3] ARM 4Kstacks: introduction Tim Bird
2011-10-18 23:27 ` Tim Bird
2011-10-18 23:29 ` [PATCH 1/3] ARM 4Kstacks: Add support for 4K kernel stacks to ARM Tim Bird
2011-10-18 23:29 ` Tim Bird
2011-10-18 23:31 ` [PATCH 2/3] ARM: Add static kernel function stack size analyzer, for ARM Tim Bird
2011-10-18 23:31 ` Tim Bird
2011-10-19 10:45 ` Arnd Bergmann
2011-10-19 10:45 ` Arnd Bergmann
2011-10-21 17:03 ` Andi Kleen
2011-10-21 17:03 ` Andi Kleen
2011-10-18 23:34 ` [PATCH 3/3] ARM 4Kstacks: Decrease poll and select stack usage, when using 4K stacks Tim Bird
2011-10-18 23:34 ` Tim Bird
2011-10-20 12:21 ` Arnd Bergmann
2011-10-20 12:21 ` Arnd Bergmann
2011-10-19 0:14 ` [PATCH 0/3] ARM 4Kstacks: introduction Joe Perches
2011-10-19 0:14 ` Joe Perches
2011-10-19 0:26 ` Tim Bird
2011-10-19 0:26 ` Tim Bird
2011-10-19 0:31 ` Joe Perches [this message]
2011-10-19 0:31 ` Joe Perches
2011-10-19 23:43 ` Tim Bird
2011-10-19 23:43 ` Tim Bird
2011-10-19 4:54 ` Dave Chinner
2011-10-19 4:54 ` Dave Chinner
2011-10-19 5:02 ` Andi Kleen
2011-10-19 5:02 ` Andi Kleen
2011-10-19 10:51 ` Arnd Bergmann
2011-10-19 10:51 ` Arnd Bergmann
2011-10-22 8:50 ` Ming Lei
2011-10-22 8:50 ` Ming Lei
2011-10-22 13:13 ` Måns Rullgård
2011-10-22 13:13 ` Måns Rullgård
2011-10-22 14:27 ` Andi Kleen
2011-10-22 14:27 ` Andi Kleen
2011-10-22 13:36 ` Russell King - ARM Linux
2011-10-22 13:36 ` Russell King - ARM Linux
2011-10-23 19:25 ` Tim Bird
2011-10-23 19:25 ` Tim Bird
2011-10-23 20:11 ` Russell King - ARM Linux
2011-10-23 20:11 ` Russell King - ARM Linux
2011-10-24 10:36 ` Ming Lei
2011-10-24 10:36 ` Ming Lei
2011-10-23 14:06 ` Bernd Petrovitsch
2011-10-23 14:06 ` Bernd Petrovitsch
2011-10-19 4:33 ` Dave Chinner
2011-10-19 4:33 ` Dave Chinner
2011-10-19 7:35 ` Russell King - ARM Linux
2011-10-19 7:35 ` Russell King - ARM Linux
2011-10-19 23:36 ` Tim Bird
2011-10-19 23:36 ` Tim Bird
2011-10-20 0:13 ` Måns Rullgård
2011-10-20 0:13 ` Måns Rullgård
2011-10-20 1:08 ` Tim Bird
2011-10-20 1:08 ` Tim Bird
2011-10-20 1:55 ` Måns Rullgård
2011-10-20 1:55 ` Måns Rullgård
2011-10-20 22:21 ` Dave Chinner
2011-10-20 22:21 ` Dave Chinner
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