From: Andreas Schwab <schwab@suse.de>
To: linux-ia64@vger.kernel.org
Subject: Re: NS83820 2.6.0-test5 driver seems unstable on IA64
Date: Tue, 23 Sep 2003 19:16:33 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106434479211293@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106394503001622@msgid-missing>
"David S. Miller" <davem@redhat.com> writes:
> On Tue, 23 Sep 2003 21:09:47 +0200
> Andreas Schwab <schwab@suse.de> wrote:
>
>> The compiler is allowed to take advantage that there are no unaligned
>> accesses. You need to use compiler extensions (like attribute packed) to
>> stop it from doing this.
>
> That's correct, and if the address is misaligned the cpu "traps"
> and the kernel fixes up the load/store access to fix it up.
Or the compiler generates code to take advantage of the fact that the
lower address bits are zero.
> That's what we're talking about here.
Of course, the kernel language is not ISO C, and never will be.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2003-09-23 19:16 UTC|newest]
Thread overview: 148+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-19 4:16 NS83820 2.6.0-test5 driver seems unstable on IA64 Peter Chubb
2003-09-19 4:38 ` Grant Grundler
2003-09-19 4:43 ` Andi Kleen
2003-09-19 5:01 ` Peter Chubb
2003-09-19 5:04 ` Grant Grundler
2003-09-19 5:11 ` Peter Chubb
2003-09-19 5:53 ` Andi Kleen
2003-09-19 10:49 ` Benjamin LaHaise
2003-09-23 0:34 ` Peter Chubb
2003-09-23 0:36 ` Benjamin LaHaise
2003-09-23 6:22 ` David S. Miller
2003-09-23 10:40 ` Peter Chubb
2003-09-23 10:51 ` David S. Miller
2003-09-23 14:59 ` David Mosberger
2003-09-23 17:27 ` David S. Miller
2003-09-23 17:56 ` David Mosberger
2003-09-23 17:56 ` David Mosberger
2003-09-23 17:57 ` David S. Miller
2003-09-23 17:58 ` Van Maren, Kevin
2003-09-23 18:06 ` David Mosberger
2003-09-23 18:21 ` Luck, Tony
2003-09-23 18:27 ` David Mosberger
2003-09-23 18:29 ` Benjamin LaHaise
2003-09-23 18:45 ` David S. Miller
2003-09-23 18:47 ` David S. Miller
2003-09-23 18:51 ` Grant Grundler
2003-09-23 18:51 ` David S. Miller
2003-09-23 18:52 ` David S. Miller
2003-09-23 18:54 ` Andreas Schwab
2003-09-23 19:01 ` David S. Miller
2003-09-23 19:04 ` Benjamin LaHaise
2003-09-23 19:08 ` David S. Miller
2003-09-23 19:09 ` Andreas Schwab
2003-09-23 19:10 ` Jeff Garzik
2003-09-23 19:10 ` David S. Miller
2003-09-23 19:11 ` David S. Miller
2003-09-23 19:11 ` Benjamin LaHaise
2003-09-23 19:16 ` Andreas Schwab [this message]
2003-09-23 19:17 ` David Mosberger
2003-09-23 19:22 ` David S. Miller
2003-09-23 19:22 ` Jeff Garzik
2003-09-23 19:28 ` Matthew Wilcox
2003-09-23 20:00 ` David Mosberger
2003-09-23 20:00 ` David Mosberger
2003-09-23 20:38 ` Grant Grundler
2003-09-23 20:45 ` David S. Miller
2003-09-23 21:00 ` Alan Cox
2003-09-23 21:16 ` David Mosberger
2003-09-23 22:35 ` Grant Grundler
2003-09-23 22:58 ` Luck, Tony
2003-09-23 23:04 ` Ian Wienand
2003-09-23 23:15 ` Andrew Morton
2003-09-23 23:32 ` David S. Miller
2003-09-23 23:35 ` David S. Miller
2003-09-23 23:35 ` David S. Miller
2003-09-23 23:37 ` David S. Miller
2003-09-24 0:04 ` David S. Miller
2003-09-24 0:06 ` David S. Miller
2003-09-24 0:13 ` Grant Grundler
2003-09-24 0:14 ` Matthew Wilcox
2003-09-24 1:47 ` David S. Miller
2003-09-24 1:58 ` William Lee Irwin III
2003-09-24 2:55 ` David S. Miller
2003-09-24 3:08 ` David S. Miller
2003-09-24 5:18 ` Valdis.Kletnieks
2003-09-25 16:11 ` Ivan Kokshaysky
2003-09-26 1:12 ` David S. Miller
[not found] <A4gy.8wi.13@gated-at.bofh.it>
[not found] ` <A4gy.8wi.15@gated-at.bofh.it>
[not found] ` <A4gy.8wi.17@gated-at.bofh.it>
[not found] ` <A4gy.8wi.11@gated-at.bofh.it>
[not found] ` <A4Tv.Ud.37@gated-at.bofh.it>
[not found] ` <AepM.5Zb.41@gated-at.bofh.it>
2003-09-27 4:26 ` Andi Kleen
2003-09-27 4:34 ` David Mosberger
2003-09-27 23:36 ` David S. Miller
[not found] <A2yd.64p.31@gated-at.bofh.it>
[not found] ` <A2yd.64p.29@gated-at.bofh.it>
[not found] ` <A317.6GH.7@gated-at.bofh.it>
2003-09-26 17:04 ` Andi Kleen
2003-09-26 17:22 ` Chris Friesen
2003-09-26 17:47 ` David Mosberger
2003-09-27 3:57 ` David S. Miller
2003-09-27 4:36 ` Andi Kleen
2003-09-27 4:52 ` David Mosberger
[not found] <zU7D.2Ji.27@gated-at.bofh.it>
2003-09-26 15:14 ` Andi Kleen
2003-09-26 15:41 ` David Mosberger
-- strict thread matches above, loose matches on Subject: below --
2003-09-26 6:16 Manfred Spraul
2003-09-26 6:07 ` David S. Miller
2003-09-26 6:41 ` David Mosberger
2003-09-26 14:38 ` Ivan Kokshaysky
2003-09-27 3:12 ` David S. Miller
2003-09-23 22:58 Luck, Tony
2003-09-23 23:32 ` David S. Miller
2003-09-24 5:18 ` Valdis.Kletnieks
2003-09-23 18:21 Luck, Tony
2003-09-23 18:29 ` Benjamin LaHaise
2003-09-23 18:45 ` David S. Miller
2003-09-23 18:51 ` Grant Grundler
2003-09-23 18:51 ` David S. Miller
2003-09-23 20:38 ` Grant Grundler
2003-09-23 20:45 ` David S. Miller
2003-09-23 22:35 ` Grant Grundler
2003-09-23 23:35 ` David S. Miller
2003-09-24 0:13 ` Grant Grundler
2003-09-24 0:04 ` David S. Miller
2003-09-24 1:58 ` William Lee Irwin III
2003-09-23 19:04 ` Benjamin LaHaise
2003-09-23 18:54 ` Andreas Schwab
2003-09-23 18:52 ` David S. Miller
2003-09-23 19:09 ` Andreas Schwab
2003-09-23 19:01 ` David S. Miller
2003-09-23 19:16 ` Andreas Schwab
2003-09-23 19:08 ` David S. Miller
2003-09-23 19:28 ` Matthew Wilcox
2003-09-23 19:22 ` David S. Miller
2003-09-23 23:15 ` Andrew Morton
2003-09-23 23:37 ` David S. Miller
2003-09-24 0:14 ` Matthew Wilcox
2003-09-24 0:06 ` David S. Miller
2003-09-23 19:10 ` Jeff Garzik
2003-09-23 19:11 ` Benjamin LaHaise
2003-09-23 19:22 ` Jeff Garzik
2003-09-23 21:00 ` Alan Cox
2003-09-23 21:16 ` David Mosberger
2003-09-24 1:47 ` David S. Miller
2003-09-23 17:58 Van Maren, Kevin
2003-09-23 17:57 ` David S. Miller
2003-09-23 18:27 ` David Mosberger
2003-09-23 18:47 ` David S. Miller
2003-09-23 19:17 ` David Mosberger
2003-09-23 19:10 ` David S. Miller
2003-09-23 20:00 ` David Mosberger
2003-09-24 3:08 ` David S. Miller
2003-09-25 16:11 ` Ivan Kokshaysky
2003-09-26 1:12 ` David S. Miller
2003-09-23 18:06 ` David Mosberger
2003-09-23 19:11 ` David S. Miller
2003-09-19 4:16 Peter Chubb
2003-09-19 4:38 ` Grant Grundler
2003-09-19 4:43 ` Andi Kleen
2003-09-19 5:01 ` Peter Chubb
2003-09-19 5:53 ` Andi Kleen
2003-09-19 10:49 ` Benjamin LaHaise
2003-09-23 0:34 ` Peter Chubb
2003-09-23 0:36 ` Benjamin LaHaise
2003-09-23 6:22 ` David S. Miller
2003-09-23 10:40 ` Peter Chubb
2003-09-23 10:51 ` David S. Miller
2003-09-23 14:59 ` David Mosberger
2003-09-23 17:27 ` David S. Miller
2003-09-23 17:56 ` David Mosberger
2003-09-24 2:55 ` David S. Miller
2003-09-23 23:04 ` Ian Wienand
2003-09-23 23:35 ` David S. Miller
2003-09-19 5:04 ` Grant Grundler
2003-09-19 5:11 ` Peter Chubb
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