From: David Laight <David.Laight@ACULAB.COM>
To: 'Sam Ravnborg' <sam@ravnborg.org>, Arnd Bergmann <arnd@kernel.org>
Cc: Guo Ren <guoren@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
"Marco Elver" <elver@google.com>, Arnd Bergmann <arnd@arndb.de>,
Russell King <linux@armlinux.org.uk>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Darren Hart <dvhart@infradead.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Davidlohr Bueso <dave@stgolabs.net>,
"Elena Reshetova" <elena.reshetova@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-csky@vger.kernel.org" <linux-csky@vger.kernel.org>,
sparclinux <sparclinux@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>
Subject: RE: [PATCH 1/2] futex: mark futex_detect_cmpxchg() as 'noinline'
Date: Wed, 16 Dec 2020 10:07:17 +0000 [thread overview]
Message-ID: <56daed1d2cbd40fea0a7170c45081cf7@AcuMS.aculab.com> (raw)
In-Reply-To: <20201215193800.GA1098247@ravnborg.org>
From: Sam Ravnborg
> Sent: 15 December 2020 19:38
>
> Hi Arnd,
>
> On Tue, Dec 15, 2020 at 12:26:10PM +0100, Arnd Bergmann wrote:
> > On Tue, Dec 15, 2020 at 7:09 AM Guo Ren <guoren@kernel.org> wrote:
...
> > - Disable SMP support for sun4m/sun4d. From the historic git
> > tree, it's unclear how well this ever worked, and very few machines
> > of this class ever existed
> Yeah, I have collection of sparc32 machines that I played around with
> once. Including one sun4d that I brought from a friendly Linux fellow in
> the UK. But somehow I lost interest as this is all very nice machines
> but not useful for anything real work.
ICL made a few SMP sparc32 systems.
I think the first ones used the original Cypress cpu running at 25MHz.
(I'm fairly sure these were SMP-capable, the later 40MHz definitely were.)
These were full sized VMEbus beasts.
Somewhere I've got a 32MByte memory board - over a square foot of board.
The memory is all 64k by 1 with all the pins on one edge and the chips vertical.
Really looks as though it should glow red and be used for cooking toast.
Even with 4 of those you're not going to run anything modern!
There were also some later mbus+sbus systems with dual sbus!
Designed by Fujitsu.
None of these ever ran solaris.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2020-12-16 10:09 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-07 9:14 [PATCH 1/2] futex: mark futex_detect_cmpxchg() as 'noinline' Arnd Bergmann
2019-03-07 9:14 ` [PATCH 2/2] ARM: futex: make futex_detect_cmpxchg more reliable Arnd Bergmann
2019-03-07 19:39 ` Nick Desaulniers
2019-03-07 23:48 ` Russell King - ARM Linux admin
2019-03-08 0:04 ` Nick Desaulniers
2019-03-08 9:54 ` Russell King - ARM Linux admin
2019-03-08 8:57 ` Ard Biesheuvel
2019-03-08 9:53 ` Russell King - ARM Linux admin
2019-03-08 10:08 ` Ard Biesheuvel
2019-03-08 10:16 ` Ard Biesheuvel
2019-03-08 10:56 ` Russell King - ARM Linux admin
2019-03-08 10:34 ` Russell King - ARM Linux admin
2019-03-08 10:45 ` Ard Biesheuvel
2019-03-08 10:58 ` Russell King - ARM Linux admin
2019-03-08 11:55 ` Ard Biesheuvel
2019-03-11 14:34 ` Arnd Bergmann
2019-03-11 14:36 ` Ard Biesheuvel
2019-03-11 16:29 ` Arnd Bergmann
2019-03-11 16:36 ` Ard Biesheuvel
2019-03-11 20:58 ` Arnd Bergmann
2019-03-08 11:55 ` Dave Martin
2019-03-07 17:19 ` [PATCH 1/2] futex: mark futex_detect_cmpxchg() as 'noinline' Joe Perches
2019-03-07 17:25 ` Russell King - ARM Linux admin
2019-03-07 17:42 ` Joe Perches
2019-03-07 18:07 ` Russell King - ARM Linux admin
2019-03-07 18:12 ` Nick Desaulniers
2019-03-07 18:21 ` Nathan Chancellor
2019-03-07 22:24 ` Arnd Bergmann
2020-12-12 12:26 ` Marco Elver
2020-12-12 20:01 ` Thomas Gleixner
2020-12-14 10:22 ` Marco Elver
2020-12-14 13:15 ` Arnd Bergmann
2020-12-15 6:09 ` Guo Ren
2020-12-15 11:26 ` Arnd Bergmann
2020-12-15 19:38 ` Sam Ravnborg
2020-12-15 23:24 ` Arnd Bergmann
2020-12-17 15:32 ` Andreas Larsson
2020-12-17 16:43 ` Arnd Bergmann
2020-12-18 11:08 ` Andreas Larsson
2020-12-17 20:03 ` Sam Ravnborg
2020-12-16 10:07 ` David Laight [this message]
2020-12-16 11:40 ` Peter Zijlstra
2020-12-20 15:44 ` Guo Ren
2020-12-20 17:49 ` Arnd Bergmann
2020-12-21 2:58 ` Guo Ren
2021-07-22 20:05 ` Nathan Chancellor
2021-10-25 13:52 ` Arnd Bergmann
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=56daed1d2cbd40fea0a7170c45081cf7@AcuMS.aculab.com \
--to=david.laight@aculab.com \
--cc=arnd@arndb.de \
--cc=arnd@kernel.org \
--cc=dave@stgolabs.net \
--cc=davem@davemloft.net \
--cc=dvhart@infradead.org \
--cc=elena.reshetova@intel.com \
--cc=elver@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=guoren@kernel.org \
--cc=linux-csky@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=mingo@redhat.com \
--cc=ndesaulniers@google.com \
--cc=peterz@infradead.org \
--cc=sam@ravnborg.org \
--cc=sparclinux@vger.kernel.org \
--cc=tglx@linutronix.de \
/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;
as well as URLs for NNTP newsgroup(s).