From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-la0-f48.google.com (mail-la0-f48.google.com [209.85.215.48]) by kanga.kvack.org (Postfix) with ESMTP id C0E7D6B0032 for ; Wed, 21 Jan 2015 09:11:40 -0500 (EST) Received: by mail-la0-f48.google.com with SMTP id gf13so40278102lab.7 for ; Wed, 21 Jan 2015 06:11:40 -0800 (PST) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id j17si11898057wiw.7.2015.01.21.06.11.39 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 21 Jan 2015 06:11:39 -0800 (PST) Date: Wed, 21 Jan 2015 15:11:38 +0100 From: Michal Hocko Subject: Re: mmotm: mm-slub-optimize-alloc-free-fastpath-by-removing-preemption-on-off.patch is causing preemptible splats Message-ID: <20150121141138.GC23700@dhcp22.suse.cz> References: <20150121132308.GB23700@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Krzysztof =?utf-8?Q?Koz=C5=82owski?= Cc: Joonsoo Kim , Christoph Lameter , Jesper Dangaard Brouer , Andrew Morton , linux-mm@kvack.org, LKML On Wed 21-01-15 15:06:03, Krzysztof KozA?owski wrote: [...] > Same here :) [1] . So actually only ARM seems affected (both armv7 and > armv8) because it is the only one which uses smp_processor_id() in > my_cpu_offset. This was on x86_64 with CONFIG_DEBUG_PREEMPT so it is not only ARM specific. > [1] https://lkml.org/lkml/2015/1/20/162 Sorry, have missed this post. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org