Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp5601931imm; Mon, 23 Jul 2018 02:41:28 -0700 (PDT) X-Google-Smtp-Source: AAOMgpd5T1yQNfUvvlMiorDSWgyUZXX18T+RJBJKCf4O2Hp8OZnkFgALIHbnQt1RlL1y5Fmqqf5D X-Received: by 2002:a17:902:8d96:: with SMTP id v22-v6mr12086644plo.176.1532338888231; Mon, 23 Jul 2018 02:41:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532338888; cv=none; d=google.com; s=arc-20160816; b=OJtj+Um3/Npn+LBOLRNob4Dd649r7KZiN0rt36T0vlEYT2/mofT320/GK/jTf45bos Do1mMBIvzEZv6EZSKPvIkh2WypjZToJjy3x87yWU2DdVF59P1c6nMqnWZvpAFGUtcMC3 x/vbYL1g2Jl20jIG7DX8S8X2DG74JL6DLbSbDb6WdE8x9N0gL5Aa8CoVto6O2On+USQa Z8xvqk/LzhfPQcion6C/vnrNLz3B7/AjGxQGUo9ivGQFvIhN8pYsPsmgmC+HV714tnUH 1c46er7zRzdcf+oP5g7dYRWS0Nk7BpDy7jUcpyXPOIscnJgDvJxOeHuVR8r1KEUg+pqM I9Bg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=Of03AhwUkIf+RW7sdvhCqXljixCzF5feJYB19B+tDaU=; b=j9HucPJCT1TvMydA5II7UBFyGCut7VxcpWjId/tAhwmksEbvHcXHY6AxK3vxezXGKC AA/Gr+4gB2zhBij6UlBdYYxzRkjZvphujQysWwVbpxwEkTR6SvfvaCrtw4sh1naqymzx 9zzw+HSl7SjMgYhHU0S7pT5xesVbSEOcIYfI5FJB9485je9yoU+cG3Qaz7rBQ84OVJom h+ZT1pcx47PXVnRkE++tjT3upHss+u1gsOXPiQMqMLi/xMhluFLjvZyHOAYYpHab0npg j5YvQ3vXtfOcmmXiMZD97fKd9BvXw0CS29FQ6JRywcKh6Pj1az7mLPBH1Xx+3p1UpLvo YtkA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i23-v6si8562670pgb.246.2018.07.23.02.41.13; Mon, 23 Jul 2018 02:41:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388274AbeGWKjj (ORCPT + 99 others); Mon, 23 Jul 2018 06:39:39 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:35040 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387957AbeGWKjj (ORCPT ); Mon, 23 Jul 2018 06:39:39 -0400 Received: from localhost (LFbn-1-12238-233.w90-92.abo.wanadoo.fr [90.92.53.233]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id D2F37B78; Mon, 23 Jul 2018 09:39:18 +0000 (UTC) Date: Mon, 23 Jul 2018 11:39:16 +0200 From: Greg Kroah-Hartman To: Mukesh Ojha Cc: Thomas Gleixner , Ingo Molnar , gkohli@codeaurora.org, Maria Yu , Prasad Sodagudi , neeraju@codeaurora.org, stable@vger.kernel.org, lkml Subject: Re: Issue related cpuhotplug failure path on 4.9.x version Message-ID: <20180723093916.GA22443@kroah.com> References: <4c43c9d5-cd7d-4f2f-70b3-384863a3fe61@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 23, 2018 at 02:49:27PM +0530, Mukesh Ojha wrote: > On 7/23/2018 1:57 PM, Mukesh Ojha wrote: > > > > Hi All, > > > > I wanted to discuss about one of the corner case exists in 4.9 kernel > > (4.9.x) where 4.9 is over 1 1/2 years old now. Please test this on 4.17 or better yet, 4.18-rc as the cpu hotplug path has been radically cleaned up and changed since 4.9 was released. If you are stuck with 4.9 for some odd reason, sorry, but you really are on your own. I recommend going and asking for support from the people that are forcing you to stick with that kernel. good luck! greg k-h