From: David Woodhouse <dwmw2@infradead.org>
To: David Miller <davem@davemloft.net>
Cc: mark@mtfhpc.demon.co.uk, linux-mm@kvack.org,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
sparclinux@vger.kernel.org, clameter@engr.sgi.com,
wli@holomorphy.com
Subject: Re: [PATCH] Re: Sparc32: random invalid instruction occourances on sparc32 (sun4c)
Date: Tue, 03 Jul 2007 18:01:36 -0400 [thread overview]
Message-ID: <1183500096.29081.51.camel@shinybook.infradead.org> (raw)
In-Reply-To: <20070703.144112.24611353.davem@davemloft.net>
On Tue, 2007-07-03 at 14:41 -0700, David Miller wrote:
> Please don't use get_unaligned() or whatever to fix this, it's
> going to generate the byte-at-a-time accesses on sparc64
> which doesn't need it since the redzone will be aligned.
Yes, get_unaligned() would suck. But 'u64 __aligned__((BYTES_PER_WORD))'
as I suggested should result in a single 64-bit load on 64-bit
architectures, and two 32-bit loads on 32-bit architectures.
But I think the patch I just sent is a better option than that anyway.
--
dwmw2
next prev parent reply other threads:[~2007-07-03 22:01 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-03 16:45 [1/2] 2.6.22-rc7: known regressions Michal Piotrowski
2007-07-03 17:29 ` Sparc32: random invalid instruction occourances on sparc32 (sun4c) Mark Fortescue
2007-07-03 18:57 ` [PATCH] " Mark Fortescue
2007-07-03 19:26 ` David Woodhouse
2007-07-03 21:25 ` Mark Fortescue
2007-07-03 21:56 ` David Woodhouse
2007-07-03 22:47 ` Mark Fortescue
2007-07-03 23:36 ` David Woodhouse
2007-07-04 3:27 ` Mark Fortescue
2007-07-04 3:33 ` David Woodhouse
2007-07-04 10:27 ` Mark Fortescue
2007-07-04 14:46 ` David Woodhouse
2007-07-04 18:38 ` Mark Fortescue
2007-07-03 21:41 ` David Miller
2007-07-03 22:01 ` David Woodhouse [this message]
2007-07-03 17:50 ` [1/2] 2.6.22-rc7: known regressions Bartlomiej Zolnierkiewicz
2007-07-03 23:09 ` David Chinner
2007-07-05 0:20 ` David Woodhouse
2007-07-05 1:26 ` [PATCH 2.6.22 REGRESSION] Fix slab redzone alignment David Woodhouse
2007-07-05 1:42 ` [1/2] 2.6.22-rc7: known regressions David Woodhouse
2007-07-05 16:28 ` Linus Torvalds
2007-07-05 16:43 ` David Woodhouse
2007-07-05 18:46 ` David Woodhouse
2007-07-05 19:31 ` David Woodhouse
2007-07-05 19:51 ` Linus Torvalds
2007-07-05 21:03 ` Dmitry Torokhov
2007-07-06 22:50 ` Jiri Kosina
2007-07-07 0:33 ` Dmitry Torokhov
2007-07-07 1:05 ` Jiri Kosina
2007-07-07 1:28 ` David Woodhouse
2007-07-07 2:25 ` David Woodhouse
2007-07-07 18:28 ` Marcel Holtmann
2007-07-07 18:36 ` Linus Torvalds
2007-07-07 18:58 ` [PATCH] Fix use-after-free oops in Bluetooth HID David Woodhouse
2007-07-07 19:27 ` Linus Torvalds
2007-07-09 2:32 ` Dmitry Torokhov
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