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Date: Thu, 12 Apr 2007 17:00:29 -0700
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: Andi Kleen <ak@suse.de>
CC: Andrew Morton <akpm@linux-foundation.org>,
       Tim Yamin <plasmaroo@gentoo.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH UPDATE] deflate stack usage in lib/inflate.c
References: <461DED14.1070603@goop.org> <200704122321.23318.ak@suse.de> <461EB938.6080807@goop.org> <200704130102.30588.ak@suse.de>
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Andi Kleen wrote:
> Yes, but then we should have seen more frequently, shouldn't we? I always
> run with the stack overflow check enabled and I don't think I ever saw 
> warnings in inflate.
>   

I guess the window is just while decompressing the root filesystem. 
Interrupts under Xen might be using a little more stack (~40-50 bytes?),
but its not a qualitative difference.  It might have more to do with
different timing.

    J