linux-kernel - Re: [PATCH 1/3] signal(i386): alternative signal stack wraparound occurs

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Message-Id: <20071004211746.3071b717.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 4 Oct 2007 21:17:46 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Shi Weihua <shiwh@...fujitsu.com>
Cc:	mikpe@...uu.se, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] signal(i386): alternative signal stack wraparound
 occurs

On Thu, 04 Oct 2007 20:56:14 +0900
Shi Weihua <shiwh@...fujitsu.com> wrote:

> 	stack.ss_sp = addr + pagesize;
> 	stack.ss_flags = 0;
> 	stack.ss_size = pagesize;
Here is bad. 
stack,ss_sp = addr;
stack.ss_flags = 0;
stack.ss_size = pagesize * 2;

cheers.
-Kame
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