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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 13 Feb 2019 19:31:27 -0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1DJVQgc10944766 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Feb 2019 19:31:26 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1C602B2064; Wed, 13 Feb 2019 19:31:26 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F12F2B2066; Wed, 13 Feb 2019 19:31:25 +0000 (GMT) Received: from paulmck-ThinkPad-W541 (unknown [9.70.82.41]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 13 Feb 2019 19:31:25 +0000 (GMT) Received: by paulmck-ThinkPad-W541 (Postfix, from userid 1000) id 68CC016C5E3A; Wed, 13 Feb 2019 11:31:27 -0800 (PST) Date: Wed, 13 Feb 2019 11:31:27 -0800 From: "Paul E. McKenney" To: "Luck, Tony" Cc: Peter Zijlstra , Linus Torvalds , Will Deacon , linux-arch , Linux List Kernel Mailing , Benjamin Herrenschmidt , Arnd Bergmann , Andrea Parri , Daniel Lustig , David Howells , Alan Stern Subject: Re: [RFC PATCH] docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section Reply-To: paulmck@linux.ibm.com References: <20190211172948.3322-1-will.deacon@arm.com> <20190213172047.GH6346@brain-police> <20190213183314.GB32494@hirez.programming.kicks-ass.net> <3908561D78D1C84285E8C5FCA982C28F7D4FF0DE@ORSMSX110.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F7D4FF0DE@ORSMSX110.amr.corp.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 x-cbid: 19021319-0052-0000-0000-00000389CC10 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010590; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000279; SDB=6.01160586; UDB=6.00605748; IPR=6.00941140; MB=3.00025567; MTD=3.00000008; XFM=3.00000015; UTC=2019-02-13 19:31:30 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19021319-0053-0000-0000-00005FD5DE43 Message-Id: <20190213193127.GH4240@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-13_11:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902130132 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 13, 2019 at 06:43:41PM +0000, Luck, Tony wrote: > > I think the last time this came up, it was said that those people still > > running Linux on Itanium were running old distro kernels, not upstream. > > > > So yeah, we could probably do whatever and nobody would ever notice, > > except maybe Al, who is rumoured to still have an ia64 :-) > > I haven't heard of anyone taking upstream kernels and actually using them > for production work in a long time. It's mostly just a few folks keeping ia64 > alive "just because" these days. I doubt any of them have an SGI Altix > to test on (so realistically Altix was probably broken upstream many releases > ago). That would require a well-healed computer collector, wouldn't it? Just to run the thing. ;-) Thanx, Paul