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Thu, 12 Jul 2018 13:58:40 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w6CDwbdn019657 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 12 Jul 2018 13:58:37 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w6CDwXKG013063; Thu, 12 Jul 2018 13:58:34 GMT Received: from dhcp-burlington7-2nd-B-east-10-152-55-162.usdhcp.oraclecorp.com (/10.152.32.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 12 Jul 2018 06:58:33 -0700 Subject: Re: [PATCH 00/39 v7] PTI support for x86-32 To: Thomas Backlund , Linus Torvalds , Joerg Roedel Cc: Jiri Kosina , Thomas Gleixner , Ingo Molnar , Peter Anvin , the arch/x86 maintainers , Linux Kernel Mailing List , linux-mm , Andrew Lutomirski , Dave Hansen , Josh Poimboeuf , =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= , Peter Zijlstra , Borislav Petkov , Brian Gerst , David Laight , Denys Vlasenko , Eduardo Valentin , Greg Kroah-Hartman References: <1531308586-29340-1-git-send-email-joro@8bytes.org> <1225b274-534b-cc32-54eb-aba89efba494@mageia.org> From: Boris Ostrovsky Openpgp: preference=signencrypt Autocrypt: addr=boris.ostrovsky@oracle.com; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <1225b274-534b-cc32-54eb-aba89efba494@mageia.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8951 signatures=668706 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807120147 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/11/2018 03:57 PM, Thomas Backlund wrote: > Den 2018-07-11 kl. 20:28, skrev Jiri Kosina: >> On Wed, 11 Jul 2018, Linus Torvalds wrote: >> >>> It's the testing that worries me most. Pretty much no developers run >>> 32-bit any more, and I'd be most worried about the odd interactions >>> that >>> might be hw-specific. Some crazy EFI mapping setup or the similar odd >>> case that simply requires a particular configuration or setup. >>> >>> But I guess those issues will never be found until we just spring this >>> all on the unsuspecting public. >> >> FWIW we shipped Joerg's 32bit KAISER kernel out to our 32bit users >> (on old >> product where we still support it) on Apr 25th already (and some issues >> have been identified since then because of that). So it (or its port to >> 3.0, to be more precise :p) already did receive some crowd-testing. >> > > And Mageia has had v2 since February 13th patched into 4.14 -longterm, > then updated to v3 at March 5th, and updated to v4 at March 19th and > been running that since then (since v5 is rebased on v4.17 we stayed > with v4) > > > So, here is another "lets merge it upstream" vote :) I had a quick boot test for Xen (PV and HVM) and they both looked OK. I didn't boot all the way to login prompt but that's most likely due to issues in my environment -- I haven't tried this image in a year or so and my other setup is offline right now. -boris