linux-kernel - Re: [3.10][3.8][3.5] ARM: Fix FIQ code on VIVT CPUs (was Re: [PATCH 076/133] ARM: update FIQ support for relocation of vectors)

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Message-ID: <87mwoclcj5.fsf@canonical.com>
Date:	Tue, 20 Aug 2013 14:25:34 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	Kamal Mostafa <kamal@...onical.com>
Cc:	Aaro Koskinen <aaro.koskinen@....fi>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: Re: [3.10][3.8][3.5] ARM: Fix FIQ code on VIVT CPUs (was Re: [PATCH 076/133] ARM: update FIQ support for relocation of vectors)

Kamal Mostafa <kamal@...onical.com> writes:

> Thanks Aaro.  I'll apply "2ba85e7 ARM: Fix FIQ code on VIVT CPUs" to
> 3.8-stable.
>
> Greg KH and Luis Henriques:  Heads up!  3.10-stable and 3.5-stable also
> need 2ba85e7 but it isn't marked cc: stable.
>
>  -Kamal
>

Thanks.  I've also seen your IRC msg.  I'll hold this commit for now.

Btw, not sure if you've seen the discussion around

58ad436 genetlink: fix family dump race

Looks like there's a regression introduced by this commit.  I'm
holding it as well.

Cheers,
-- 
Luis


>
> On Mon, 2013-08-19 at 00:09 +0300, Aaro Koskinen wrote:
>> On Fri, Aug 16, 2013 at 03:33:38PM -0700, Kamal Mostafa wrote:
>> > 3.8.13.7 -stable review patch.  If anyone has any objections, please let me know.
>> > 
>> > ------------------
>> > 
>> > From: Russell King <rmk+kernel@....linux.org.uk>
>> > 
>> > commit e39e3f3ebfef03450cf7bfa7a974a8c61f7980c8 upstream.
>> > 
>> > FIQ should no longer copy the FIQ code into the user visible vector
>> > page.  Instead, it should use the hidden page.  This change makes
>> > that happen.
>> 
>> FYI, this patch introduced regression (kernel crash) at least on Amstrad
>> E1 board (where FIQ is used for the keyboard). See the following thread:
>> http://marc.info/?t=137583169900003&r=1&w=2
>> 
>> So any stable kernels where this patch was added should also take:
>> 
>> 	commit 2ba85e7af4c639d933c9a87a6d7363f2983d5ada
>> 	Author: Russell King <rmk+kernel@....linux.org.uk>
>> 	Date:   Thu Aug 8 11:51:21 2013 +0100
>> 
>> 	ARM: Fix FIQ code on VIVT CPUs
>> 
>> That patch fixes the regression.
>> 
>> A.
>> 
>

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