From: "H. Peter Anvin" <hpa@zytor.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Jeremy Fitzhardinge <jeremy@goop.org>,
mingo@redhat.com, linux-kernel@vger.kernel.org,
jeremy.fitzhardinge@citrix.com, stable@kernel.org,
tglx@linutronix.de, linux-tip-commits@vger.kernel.org,
Tejun Heo <tj@kernel.org>
Subject: Re: [tip:x86/asm] x86/i386: Make sure stack-protector segment base is cache aligned
Date: Fri, 04 Sep 2009 09:06:44 -0700 [thread overview]
Message-ID: <4AA13B14.20000@zytor.com> (raw)
In-Reply-To: <20090904071524.0a7267ce@infradead.org>
On 09/04/2009 07:15 AM, Arjan van de Ven wrote:
>
> the other issue is that afaik we want the kernel to use the other
> register than userspace does...
>
Yes, although it's a pretty marginal win on 32 bits as far as I know.
On 64 bits, not so.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2009-09-04 17:32 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-03 19:27 [PATCH] x86/i386: make sure stack-protector segment base is cache aligned Jeremy Fitzhardinge
2009-09-03 19:47 ` Eric Dumazet
2009-09-03 20:41 ` Jeremy Fitzhardinge
2009-09-03 21:07 ` Eric Dumazet
2009-09-03 21:31 ` Jeremy Fitzhardinge
2009-09-04 7:58 ` [tip:x86/asm] x86/i386: Put aligned stack-canary in percpu shared_aligned section tip-bot for Jeremy Fitzhardinge
2009-09-03 20:03 ` [tip:x86/asm] x86/i386: Make sure stack-protector segment base is cache aligned tip-bot for Jeremy Fitzhardinge
2009-09-03 20:26 ` H. Peter Anvin
2009-09-03 20:45 ` Jeremy Fitzhardinge
2009-09-03 21:15 ` H. Peter Anvin
2009-09-03 21:18 ` Ingo Molnar
2009-09-03 21:21 ` H. Peter Anvin
2009-09-04 14:15 ` Arjan van de Ven
2009-09-04 15:59 ` Jeremy Fitzhardinge
2009-09-04 16:06 ` H. Peter Anvin [this message]
2009-09-03 21:28 ` Jeremy Fitzhardinge
2009-09-04 2:51 ` Tejun Heo
2009-09-04 2:59 ` Tejun Heo
2009-09-04 3:35 ` H. Peter Anvin
2009-09-04 3:47 ` Tejun Heo
2009-09-04 3:51 ` H. Peter Anvin
2009-09-04 5:06 ` Tejun Heo
2009-09-04 5:12 ` Ingo Molnar
2009-09-04 16:04 ` Jeremy Fitzhardinge
2009-09-04 16:09 ` Tejun Heo
2009-09-04 16:13 ` H. Peter Anvin
2009-09-04 16:01 ` Jeremy Fitzhardinge
2009-09-04 16:52 ` H. Peter Anvin
2009-09-04 16:57 ` Jeremy Fitzhardinge
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