From: Dave Jones <davej@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>,
Stefani Seibold <stefani@seibold.net>,
Andy Lutomirski <luto@amacapital.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andreas Brief <Andreas.Brief@rohde-schwarz.com>,
Martin Runge <Martin.Runge@rohde-schwarz.com>
Subject: Re: [x86, vdso] BUG: unable to handle kernel paging request at d34bd000
Date: Mon, 10 Mar 2014 17:51:11 -0400 [thread overview]
Message-ID: <20140310215111.GA27749@redhat.com> (raw)
In-Reply-To: <CA+55aFwuVYds=ssv755WKBvux1ru6fcDLGi+ORSFyU8xYP7+=w@mail.gmail.com>
On Mon, Mar 10, 2014 at 02:20:34PM -0700, Linus Torvalds wrote:
> I also suspect we should get rid of CONFIG_X86_OOSTORE, or at least
> limit it to !SMP - I don't think anybody ever made SMP systems with
> those IDT/Centaur Winchip chips in them.
Given the number of people who ever used that code when it was new could
probably be counted on a couple hands, I'd be amazed if a) anyone was still
using it, and b) that it hasn't regressed in some way in the last 15 years.
Even when it worked, it was only a small performance increase anyway,
and anyone who notices a circa 1998 CPU is now slightly slower on benchmarks
in 2014 probably needs psychiatric help.
I'd say rip it out completely.
Dave
next prev parent reply other threads:[~2014-03-10 21:51 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-07 1:38 [x86, vdso] BUG: unable to handle kernel paging request at d34bd000 Fengguang Wu
2014-03-07 1:48 ` [x86, vdso] BUG: unable to handle kernel paging request at 91c24000 Fengguang Wu
2014-03-07 7:21 ` [x86, vdso] BUG: unable to handle kernel paging request at d34bd000 Stefani Seibold
2014-03-07 18:56 ` Andy Lutomirski
2014-03-07 21:53 ` Stefani Seibold
2014-03-07 23:07 ` Andy Lutomirski
2014-03-09 8:47 ` Stefani Seibold
2014-03-10 0:16 ` H. Peter Anvin
2014-03-10 3:18 ` Andy Lutomirski
2014-03-10 4:46 ` Andy Lutomirski
2014-03-10 14:59 ` H. Peter Anvin
[not found] ` <CA+55aFwKpBybz9S9A=+tcr1BbdzAbagL30Br2cak2GrdPH=hhA@mail.gmail.com>
2014-03-10 17:12 ` Andy Lutomirski
2014-03-10 17:24 ` H. Peter Anvin
2014-03-10 17:31 ` Andy Lutomirski
2014-03-10 17:38 ` H. Peter Anvin
2014-03-10 17:46 ` Andy Lutomirski
2014-03-10 17:48 ` H. Peter Anvin
2014-03-10 17:52 ` Andy Lutomirski
2014-03-10 17:58 ` H. Peter Anvin
2014-03-10 18:10 ` Andy Lutomirski
2014-03-10 17:49 ` H. Peter Anvin
2014-03-10 20:03 ` Stefani Seibold
2014-03-10 20:06 ` H. Peter Anvin
2014-03-10 20:19 ` Linus Torvalds
2014-03-10 21:20 ` Linus Torvalds
2014-03-10 21:43 ` Andy Lutomirski
2014-03-10 21:51 ` Dave Jones [this message]
2014-03-10 22:59 ` H. Peter Anvin
2014-03-10 23:32 ` [PATCH] x86: Remove CONFIG_X86_OOSTORE Dave Jones
2014-03-11 10:11 ` [x86, vdso] BUG: unable to handle kernel paging request at d34bd000 Ingo Molnar
2014-03-10 21:25 ` stefani
2014-03-10 21:39 ` Linus Torvalds
2014-03-10 21:53 ` stefani
2014-03-10 22:03 ` Andy Lutomirski
2014-03-10 22:36 ` Andy Lutomirski
2014-03-10 23:02 ` H. Peter Anvin
2014-03-10 21:29 ` stefani
2014-03-11 6:02 ` H. Peter Anvin
2014-03-07 8:47 ` Stefani Seibold
2014-03-07 9:15 ` Fengguang Wu
2014-03-07 9:57 ` Stefani Seibold
2014-03-07 10:21 ` Fengguang Wu
2014-03-07 16:06 ` Stefani Seibold
2014-03-07 23:12 ` H. Peter Anvin
2014-03-07 10:36 ` Fengguang Wu
2014-03-07 23:44 ` Fengguang Wu
2014-03-09 8:08 ` Stefani Seibold
2014-03-10 0:00 ` H. Peter Anvin
2014-03-10 19:41 ` Greg Kroah-Hartman
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=20140310215111.GA27749@redhat.com \
--to=davej@redhat.com \
--cc=Andreas.Brief@rohde-schwarz.com \
--cc=Martin.Runge@rohde-schwarz.com \
--cc=hpa@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=stefani@seibold.net \
--cc=torvalds@linux-foundation.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox