From: Andi Kleen <ak@suse.de>
To: Daniel Phillips <phillips@istop.com>
Subject: Re: RFC: i386: kill !4KSTACKS
Date: Wed, 7 Sep 2005 00:21:29 +0200
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Cc: Giridhar Pemmasani <giri@lmc.cs.sunysb.edu>, linux-kernel@vger.kernel.org
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On Wednesday 07 September 2005 00:19, Daniel Phillips wrote:

> Andi, their stack will have to have a valid thread_info->task because
> interrupts will use it.  Out of interest, could you please explain what
> for?

No, with 4k interrupts run on their own stack with their own thread_info
Or rather they mostly do. Currently do_IRQ does irq_enter which refers
thread_info before switching to the interrupt stack, that order would likely 
need to be
exchanged.

-Andi
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