linux-kernel - Re: [PATCH 1/5] signal(x86_32): Improve the signal stack overflow check

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Date:	Wed, 20 Feb 2008 08:49:38 +0800
From:	Shi Weihua <shiwh@...fujitsu.com>
To:	Roland McGrath <roland@...hat.com>
CC:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH 1/5] signal(x86_32): Improve the signal stack overflow
 check

Roland McGrath wrote::
> This change looks bogus to me.  Before I get to the content, there is a nit
> that annoys me.  You changed the punctuation in my comment so that it no
> longer means what it did, and now the comment is nonsensical.  I don't
> demand decent English from hackers of any linguistic bent, but please don't
> louse up the coherent sentences I wrote when moving them down ten lines.
> 
> Please elaborate on the rationale that justifies this change.
> I don't see it at all.

I have corrected the comment in the latest patch which has been apllied by Ingo.
Please refer to http://lkml.org/lkml/2008/2/18/575 and http://lkml.org/lkml/2008/2/19/119 .

Thanks.
Shi Weihua

> 
> If you are already on the signal stack, it doesn't matter whether the
> signal that just arrived has SA_ONSTACK set or not.  If you are going to
> overflow the stack with the new signal frame, we want to prevent that
> clobberation regardless.
> 
> 
> Thanks,
> Roland
> 
> 
> 

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