From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.skyhub.de ([5.9.137.197]:58746 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727436AbeLETAX (ORCPT ); Wed, 5 Dec 2018 14:00:23 -0500 Date: Wed, 5 Dec 2018 20:00:20 +0100 From: Borislav Petkov To: Jari Ruusu Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Sebastian Andrzej Siewior , Ingo Molnar , Thomas Gleixner , Andy Lutomirski , Dave Hansen , "H. Peter Anvin" , "Jason A. Donenfeld" , kvm ML , Paolo Bonzini , Radim =?utf-8?B?S3I/bcOhPw==?= , Rik van Riel , x86-ml Subject: Re: [PATCH 4.14 121/146] x86/fpu: Disable bottom halves while loading FPU registers Message-ID: <20181205190020.GO29510@zn.tnic> References: <20181204103726.750894136@linuxfoundation.org> <20181204103731.697870447@linuxfoundation.org> <5C07FC30.43601034@users.sourceforge.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <5C07FC30.43601034@users.sourceforge.net> Sender: stable-owner@vger.kernel.org List-ID: On Wed, Dec 05, 2018 at 06:26:24PM +0200, Jari Ruusu wrote: > That same race appears to be present in older kernel branches also. > The context is sligthly different, so the patch for 4.14 does not > apply cleanly to older kernels. For 4.9 branch, this edit works: You could take the upstream one, amend it with your change, test it and send it to Greg - I believe he'll take the backport gladly. :-) -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.