From: Matthew Wilcox <matthew@wil.cx>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] Ensure PSR.ac is cleared for early userspace
Date: Tue, 18 Nov 2008 07:12:55 +0000 [thread overview]
Message-ID: <20081118071255.GN1617@parisc-linux.org> (raw)
In-Reply-To: <200811120135.mAC1ZoSd017352@agluck-lia64.sc.intel.com>
On Tue, Nov 18, 2008 at 08:06:53AM +0100, Petr Tesarik wrote:
> Well, then let's make it a boot option (or a sysctl). The default must
> be psr.ac = 1, but if the admin sees "unaligned access" messages and
> knows that there is no way of getting a (timely) fix for that particular
> production system, s/he should be able to turn them off.
Or how about ia64 does what every other Linux port does and turn off
alignment warnings altogether? Are they *particularly* expensive
on Itanium? I bet they aren't.
--
Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
next prev parent reply other threads:[~2008-11-18 7:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-12 1:35 [PATCH] Ensure PSR.ac is cleared for early userspace Luck, Tony
2008-11-13 6:22 ` Isaku Yamahata
2008-11-15 1:38 ` Luck, Tony
2008-11-15 3:03 ` David Mosberger-Tang
2008-11-15 19:57 ` Tony Luck
2008-11-17 18:59 ` Rick Jones
2008-11-17 19:45 ` Luck, Tony
2008-11-17 19:52 ` Rick Jones
2008-11-17 20:58 ` Luck, Tony
2008-11-18 7:06 ` Petr Tesarik
2008-11-18 7:12 ` Matthew Wilcox [this message]
2008-11-18 11:58 ` Robin Holt
2008-11-20 22:45 ` Luck, Tony
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