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Re: [RFC][PATCH] 4KB stack + irq stack for x86

To: Andreas Dilger <adilger@clusterfs.com>,Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [RFC][PATCH] 4KB stack + irq stack for x86
From: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Date: Thu, 3 Oct 2002 09:10:51 -0200
Cc: linux-kernel@vger.kernel.org,"Martin J. Bligh" <Martin.Bligh@us.ibm.com>, linux-mm@kvack.org
Fake-Sender: owner-linux-mm@kvack.org
In-Reply-To: <20021002215649.GY3000@clusterfs.com>
Original-Recipient: rfc822;linux-mm-archive@humbolt.geo.uu.nl
References: <3D9B62AC.30607@us.ibm.com> <20021002215649.GY3000@clusterfs.com>
Reply-To: vda@port.imtp.ilyichevsk.odessa.ua
Sender: Rik van Riel <riel@nl.linux.org>

On 2 October 2002 19:56, Andreas Dilger wrote:
> Alternately, you could set up an 8kB stack + IRQ stack and "red-zone"
> the high page of the current 8kB stack and see if it is ever used.

This debugging technique definitely works. Look how many sleeping calls
under locks apkm has caught recently!
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vda
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References:
- [RFC][PATCH] 4KB stack + irq stack for x86
  - From: Dave Hansen <haveblue@us.ibm.com>
- Re: [RFC][PATCH] 4KB stack + irq stack for x86
  - From: Andreas Dilger <adilger@clusterfs.com>

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