linux-kernel - Re: Regression [Was: Boot hang with stack protector on x86

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Message-ID: <20080222161256.GA1773@uranus.ravnborg.org>
Date:	Fri, 22 Feb 2008 17:12:56 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	James Morris <jmorris@...ei.org>, linux-kernel@...r.kernel.org,
	Arjan van de Ven <arjan@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: Regression [Was: Boot hang with stack protector on x86_64]

On Fri, Feb 22, 2008 at 07:43:08AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 22 Feb 2008, Sam Ravnborg wrote:
> >
> > This is a regression. Can you please revert this commit.
> 
> Not really. The thing is, CONFIG_CC_STACKPROTECTOR has never done anything 
> at all, now it does, and it shows that it never worked.
And this made a machine non-bootable that could boot before.

> 
> So the commit that made it do something shouldn't be reverted, but 
> CONFIG_CC_STACKPROTECTOR should be marked BROKEN, because it obviously is 
> broken right now.
> 
> But keeping the config option, and just not making it do anything is 
> misleading and wrong.
> 
> So just something like this? To make sure normal people don't enable it..
Whatever is fine with me - I hope Ingo & Co fixes the root cause soon so
we can get the right fix in.

	Sam
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