From: Borislav Petkov <petkovbb@googlemail.com>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: Robin Holt <holt@sgi.com>,
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
Nishanth Aravamudan <nacc@us.ibm.com>,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Subject: Re: kernel unaligned accesses on IA64 in IDE
Date: Fri, 22 Aug 2008 20:54:31 +0000 [thread overview]
Message-ID: <20080822205431.GA5968@gollum.tnic> (raw)
In-Reply-To: <200808222036.m7MKa6bT008897@agluck-lia64.sc.intel.com>
On Fri, Aug 22, 2008 at 01:36:06PM -0700, Luck, Tony wrote:
> > How about long instead of int. int leaves us with the possibility that
> > something else will expect 8 byte alignment.
>
> How about this?
>
> Align __cmd to ward off kernel unaligned access consoles messages on
> ia64 (and perhaps make an almost imperceptible performance improvement
> on other architectures that can handle unaligned access, but do so
> more slowly than aligned accesses).
By the way, i've been wondering, this unaligned access breaking should have
happened earlier, how did we miss that? Nish, Robin, can you see that in some
older logs?
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2008-08-22 20:54 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-19 22:56 kernel unaligned accesses on IA64 in IDE Nishanth Aravamudan
2008-08-20 1:39 ` Peter Chubb
2008-08-21 21:28 ` Nishanth Aravamudan
2008-08-20 14:35 ` Robin Holt
2008-08-21 21:31 ` Nishanth Aravamudan
2008-08-21 21:54 ` Robin Holt
2008-08-22 0:39 ` Nishanth Aravamudan
2008-08-22 1:11 ` Robin Holt
2008-08-22 16:45 ` Nishanth Aravamudan
2008-08-22 10:15 ` Bartlomiej Zolnierkiewicz
2008-08-22 10:55 ` Boris Petkov
2008-08-22 16:45 ` Nishanth Aravamudan
2008-08-22 17:29 ` Boris Petkov
2008-08-22 18:36 ` Bartlomiej Zolnierkiewicz
2008-08-22 18:51 ` Luck, Tony
2008-08-22 19:39 ` Robin Holt
2008-08-22 20:36 ` Luck, Tony
2008-08-22 20:41 ` Borislav Petkov
2008-08-22 20:54 ` Borislav Petkov [this message]
2008-08-22 21:38 ` Nishanth Aravamudan
2008-08-22 21:49 ` Borislav Petkov
2008-08-22 21:14 ` Borislav Petkov
2008-08-22 23:02 ` Nishanth Aravamudan
2008-08-22 23:30 ` Luck, Tony
2008-08-22 23:33 ` James Bottomley
2008-08-22 21:15 ` James Bottomley
2008-08-25 16:31 ` Nishanth Aravamudan
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