From: "H. Peter Anvin" <hpa@zytor.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Nish Aravamudan <nish.aravamudan@gmail.com>,
Arjan van de Ven <arjan@linux.intel.com>,
torvalds@linux-foundation.org, hans.rosenfeld@amd.com,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: bisected boot regression post 2.6.25-rc3.. please revert
Date: Mon, 03 Mar 2008 09:58:10 -0800 [thread overview]
Message-ID: <47CC3C32.4000509@zytor.com> (raw)
In-Reply-To: <20080303175557.GA26718@elte.hu>
Ingo Molnar wrote:
> * Nish Aravamudan <nish.aravamudan@gmail.com> wrote:
>
>>> in any case, the commit has to be reverted as it clearly isnt a NOP
>>> on your box as it was intended to be. (it should only have made a
>>> difference in a rare hugetlbfs case)
>> On x86/{,_64}, _PAGE_PSE and _PAGE_PROTNONE are the same bit. Would
>> that have any effect here? We encountered that collision when adding
>> mprotect() support for hugepages.
>
> well, this is the PMD, and PROTNONE is a pte property.
The PSE bit in the PTE becomes the PATX bit. It shouldn't ever be set
in Linux.
-hpa
next prev parent reply other threads:[~2008-03-03 17:59 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-01 18:56 bisected boot regression post 2.6.25-rc3.. please revert Arjan van de Ven
2008-03-03 7:46 ` Ingo Molnar
2008-03-03 9:13 ` Ingo Molnar
2008-03-03 16:41 ` Arjan van de Ven
2008-03-03 17:40 ` Ingo Molnar
2008-03-03 17:51 ` Nish Aravamudan
2008-03-03 17:55 ` Ingo Molnar
2008-03-03 17:58 ` H. Peter Anvin [this message]
2008-03-03 18:36 ` Arjan van de Ven
2008-03-03 18:44 ` Linus Torvalds
2008-03-03 22:00 ` Arjan van de Ven
2008-03-04 1:05 ` Arjan van de Ven
2008-03-04 6:53 ` Ingo Molnar
2008-03-05 15:35 ` Arjan van de Ven
2008-03-09 11:56 ` Ingo Molnar
2008-03-09 17:27 ` Linus Torvalds
2008-03-09 18:57 ` Ingo Molnar
2008-03-10 2:45 ` Jeremy Fitzhardinge
2008-03-10 4:35 ` Paul Mackerras
2008-03-03 21:13 ` Segher Boessenkool
2008-03-03 21:22 ` Segher Boessenkool
2008-03-03 22:33 ` Segher Boessenkool
2008-03-03 22:55 ` H. Peter Anvin
2008-03-03 22:56 ` Jeremy Fitzhardinge
2008-03-03 23:04 ` H. Peter Anvin
2008-03-04 6:58 ` Ingo Molnar
2008-03-03 17:15 ` Nish Aravamudan
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