linux-kernel - Re: [PATCH] x86: push old stack address on irqstack for unwinder

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Message-ID: <4987D3AD.1080605@zytor.com>
Date:	Mon, 02 Feb 2009 21:18:37 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Martin Hicks <mort@....com>
CC:	Ingo Molnar <mingo@...e.hu>, tglx@...utronix.de, mingo@...hat.com,
	heukelum@...lshack.com,
	linux-kernel <linux-kernel@...r.kernel.org>, kdb@....com
Subject: Re: [PATCH] x86: push old stack address on irqstack for unwinder

Martin Hicks wrote:
> 
> I was searching around, trying to find out if there was another way for
> kdb to do this, and I think removing the backlink is breaking other
> stuff also.  dump_trace() in dumpstack_64.S is using the same trick as
> KDB to trace out of the interrupt stack:
> 

OK, that makes it a no-brainer.  Applied to tip:x86/urgent, thanks!

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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