linux-kernel - Re: [PATCH 0/3] ARM 4Kstacks: introduction

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Message-ID: <1318984301.7569.9.camel@Joe-Laptop>
Date:	Tue, 18 Oct 2011 17:31:41 -0700
From:	Joe Perches <joe@...ches.com>
To:	Tim Bird <tim.bird@...sony.com>
Cc:	Russell King <rmk@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] ARM 4Kstacks: introduction

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.

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