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From: John Reiser <jreiser@BitWagon.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andi Kleen <andi@firstfloor.org>,
	Vegard Nossum <vegard.nossum@gmail.com>,
	Bart Van Assche <bart.vanassche@gmail.com>,
	Pekka Enberg <penberg@cs.helsinki.fi>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Christoph Lameter <clameter@sgi.com>,
	Daniel Walker <dwalker@mvista.com>,
	Randy Dunlap <randy.dunlap@oracle.com>,
	Josh Aune <luken@omner.org>, Pekka Paalanen <pq@iki.fi>
Subject: Re: [ANNOUNCE] kmemcheck v7
Date: Sat, 10 May 2008 14:29:26 -0700	[thread overview]
Message-ID: <482613B6.2080301@BitWagon.com> (raw)
In-Reply-To: <4826095F.3070501@goop.org>

Jeremy Fitzhardinge wrote:

> Determining stack
> boundaries has always been a bit fraught.  Typically a stack switch has
> been determined heuristically by looking for a "large" change in stack
> pointer, but there's a callback to specifically mark a range of memory
> as a stack, so that movements into and out of a stack can be determined
> as a switch (added specifically to deal with small densely packed stacks
> in uml).

The valgrind+uml patches added a callback, "I am switching stacks >NOW<."
If possible then it is better to tell an interpreter what is happening,
rather than requiring that the interpreter [try to] figure it out.

-- 
John Reiser, jreiser@BitWagon.com

  reply	other threads:[~2008-05-10 21:36 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-04 13:44 [ANNOUNCE] kmemcheck v7 Vegard Nossum
2008-04-04 13:45 ` [PATCH 1/3] kmemcheck: add the kmemcheck core Vegard Nossum
2008-04-04 13:46 ` [PATCH 2/3] x86: add hooks for kmemcheck Vegard Nossum
2008-04-04 13:47 ` [PATCH 3/3] slub: " Vegard Nossum
2008-05-10  9:07 ` [ANNOUNCE] kmemcheck v7 Bart Van Assche
2008-05-10  9:06   ` Pekka Enberg
2008-05-10 11:04     ` Bart Van Assche
2008-05-10 12:02       ` Vegard Nossum
2008-05-10 12:37         ` Andi Kleen
2008-05-10 13:22           ` Bart Van Assche
2008-05-10 17:17           ` Jeremy Fitzhardinge
2008-05-10 17:48             ` Andi Kleen
2008-05-10 20:45               ` Jeremy Fitzhardinge
2008-05-10 21:29                 ` John Reiser [this message]
2008-05-10 23:05                   ` Jeremy Fitzhardinge
2008-05-10 21:31                 ` Andi Kleen
2008-05-10 22:59                   ` Jeremy Fitzhardinge
2008-05-10 13:29         ` Bart Van Assche
2008-05-10 17:17         ` Jeremy Fitzhardinge
2008-05-10 20:35           ` Jeff Dike
2008-05-11 11:23             ` John Reiser
2008-05-11 12:08         ` John Reiser

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