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

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Date:	Tue, 18 Oct 2011 17:14:08 -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 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.

I believe the current vsnprintf max recursion is 3.
Each recursion uses at least 300 bytes of stack.

That might be some additional issue for 4k stacks.

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