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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20081118071255.GN1617@parisc-linux.org \
--to=matthew@wil.cx \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.