From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Paul E. McKenney" Subject: Re: [RFC PATCH] docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section Date: Wed, 13 Feb 2019 11:31:27 -0800 Message-ID: <20190213193127.GH4240@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> Reply-To: paulmck@linux.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F7D4FF0DE@ORSMSX110.amr.corp.intel.com> Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: linux-arch.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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:46500 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387500AbfBMTbe (ORCPT ); Wed, 13 Feb 2019 14:31:34 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1DJNagh108715 for ; Wed, 13 Feb 2019 14:31:32 -0500 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qms3n0ver-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 13 Feb 2019 14:31:31 -0500 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 13 Feb 2019 19:31:31 -0000 Date: Wed, 13 Feb 2019 11:31:27 -0800 From: "Paul E. McKenney" 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> Message-ID: <20190213193127.GH4240@linux.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: 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 Message-ID: <20190213193127.Qjnca4mi5RKcfaR-017qCdecTw-uXtu0UHpG_jJplTw@z> 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