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Re: [PATCH 1/4] MIPS: Replace _PAGE_READ with _PAGE_NO_READ

To: Ralf Baechle <>, Jayachandran C <>
Subject: Re: [PATCH 1/4] MIPS: Replace _PAGE_READ with _PAGE_NO_READ
From: Kevin Cernekee <>
Date: Fri, 13 May 2011 09:55:21 -0700
Cc: David Daney <>,,
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On Fri, May 13, 2011 at 8:56 AM, Ralf Baechle <> wrote:
> I'm not totally certain with my explanation but it seemed like a good
> working hypothesis.  Jayachandran C. bisected this morning's linux-queue
> on his Netlogic XLR which is MIPS64 R1 and found this comment causing
> the problem.

Jayachandran, could you please confirm/deny the following:

Netlogic XLR is a MIPS64 R1 system.

You are running a 32-bit kernel.

You are using 64-bit physical addresses.

You are not enabling RI/XI.

The commit that caused the regression was "[PATCH 1/4] MIPS: Replace
_PAGE_READ with _PAGE_NO_READ" (not 2/4, 3/4, or 4/4).

Do you have a log showing the failure, or any other details of what happened?


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