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From: "H. Peter Anvin" <hpa@zytor.com>
To: Kees Cook <kees.cook@canonical.com>
Cc: mingo@redhat.com, linux-kernel@vger.kernel.org,
	castet.matthieu@free.fr, tglx@linutronix.de, hpa@linux.intel.com
Subject: Re: [tip:x86/urgent] x86-32: Make sure the stack is set up before we use it
Date: Fri, 04 Feb 2011 20:37:37 -0800	[thread overview]
Message-ID: <4D4CD411.6070800@zytor.com> (raw)
In-Reply-To: <20110205021922.GP5503@outflux.net>

On 02/04/2011 06:19 PM, Kees Cook wrote:
> Hi Peter,
> 
> This works for me doing CPU hotplugging on ia32, but on x86_64 it hangs.
> (Both boot, though.)
> 
> Thanks,
> 
> -Kees

I can't reproduce the failure here, and it's hard to see how this patch
would make a significant change on 64 bits.  Could you try reverting
*only* the head_64.S hunk and try it on your platform again?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.


  reply	other threads:[~2011-02-05  4:38 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-27 21:49 [BUG] broken ebba638ae723d8a8fc2f7abce5ec18b688b791d7 matthieu castet
2011-01-27 23:00 ` Kees Cook
2011-01-28  2:24   ` H. Peter Anvin
2011-01-28  3:38     ` H. Peter Anvin
2011-01-28 16:58       ` Jeremy Fitzhardinge
2011-02-02 22:48         ` H. Peter Anvin
2011-02-03  1:19           ` Rusty Russell
2011-02-03  2:00             ` Rusty Russell
2011-02-03  2:35               ` H. Peter Anvin
2011-02-03 10:02                 ` Rusty Russell
2011-02-03 17:11                   ` H. Peter Anvin
2011-01-31 21:38     ` Kees Cook
2011-01-31 23:11       ` matthieu castet
2011-01-31 23:17         ` Rafael J. Wysocki
2011-02-01 13:07           ` castet.matthieu
2011-02-01 18:50             ` Rafael J. Wysocki
2011-01-31 23:52         ` Kees Cook
2011-02-01  1:10           ` H. Peter Anvin
2011-02-02 20:40             ` Kees Cook
2011-02-04  5:47               ` H. Peter Anvin
2011-01-31 23:12       ` matthieu castet
2011-02-05  0:34 ` [tip:x86/urgent] x86-32: Make sure the stack is set up before we use it tip-bot for H. Peter Anvin
2011-02-05  0:45 ` tip-bot for H. Peter Anvin
2011-02-05  2:19   ` Kees Cook
2011-02-05  4:37     ` H. Peter Anvin [this message]
2011-02-05  5:37       ` Kees Cook
2011-02-05  6:26         ` H. Peter Anvin
2011-02-05  6:31 ` tip-bot for H. Peter Anvin

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