From: Ralf Baechle <ralf@linux-mips.org>
To: Chris Dearman <chris@mips.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Subject: Re: [PATCH] Avoid potential hazard on Context register
Date: Sun, 11 Oct 2009 15:39:12 +0200 [thread overview]
Message-ID: <20091011133912.GA15684@linux-mips.org> (raw)
In-Reply-To: <4AD17619.1000201@mips.com>
On Sat, Oct 10, 2009 at 11:07:21PM -0700, Chris Dearman wrote:
> set_saved_sp reads Context register. Avoid reading stale value from
> earlier incomplete write
Which is executed fairly frequently. So it'll be cheaper to fix the issue
in the writers. Will post patch in a few minutes.
I'm curious, did you actually manage to trigger this one? The time between
the instructions should be fairly long but then again the 34K has been
good for a few surprises!
Ralf
next prev parent reply other threads:[~2009-10-11 13:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-11 6:07 [PATCH] Avoid potential hazard on Context register Chris Dearman
2009-10-11 13:39 ` Ralf Baechle [this message]
2009-10-11 14:53 ` Ralf Baechle
2009-10-11 20:26 ` Chris Dearman
2009-10-12 3:20 ` Ralf Baechle
2009-10-11 20:05 ` Chris Dearman
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=20091011133912.GA15684@linux-mips.org \
--to=ralf@linux-mips.org \
--cc=chris@mips.com \
--cc=linux-mips@linux-mips.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.