linux-kernel - Re: [PATCH] Mark thread stack correctly in proc/<pid>/maps

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Message-ID: <CAHGf_=q7epQdxRMpQGhZ+734dZRPbM+wdAP74NwJrKLvkxZKuQ@mail.gmail.com>
Date:	Thu, 23 Feb 2012 19:49:45 -0500
From:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
To:	Siddhesh Poyarekar <siddhesh.poyarekar@...il.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org, Jamie Lokier <jamie@...reable.org>,
	vapier@...too.org
Subject: Re: [PATCH] Mark thread stack correctly in proc/<pid>/maps

2012/2/23 KOSAKI Motohiro <kosaki.motohiro@...il.com>:
> Hi
>
> This version makes sense to me. and I verified this change don't break
> procps tools.

Sigh. No, I missed one thing. If application use
makecontext()/swapcontext() pair,
ESP is not reliable way to detect pthread stack. At that time the
stack is still marked
as anonymous memory.
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