From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f199.google.com (mail-io0-f199.google.com [209.85.223.199]) by kanga.kvack.org (Postfix) with ESMTP id 2C25B6B0033 for ; Wed, 8 Feb 2017 09:01:18 -0500 (EST) Received: by mail-io0-f199.google.com with SMTP id v96so145753216ioi.5 for ; Wed, 08 Feb 2017 06:01:18 -0800 (PST) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp. [2001:e42:101:1:202:181:97:72]) by mx.google.com with ESMTPS id t84si3027840ioi.216.2017.02.08.06.01.16 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 08 Feb 2017 06:01:17 -0800 (PST) Subject: Re: mm: kernel BUG at __free_one_page() or free_pcppages_bulk() From: Tetsuo Handa References: <201702081932.IJD35962.LJFMFQFOtSOHVO@I-love.SAKURA.ne.jp> <5224177e-ca22-e726-c5ad-485ad5c9fd74@suse.cz> In-Reply-To: <5224177e-ca22-e726-c5ad-485ad5c9fd74@suse.cz> Message-Id: <201702082301.CGG05233.HLSMtFOJVFQFOO@I-love.SAKURA.ne.jp> Date: Wed, 8 Feb 2017 23:01:11 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org List-ID: To: vbabka@suse.cz, linux-mm@kvack.org Cc: mgorman@techsingularity.net, mhocko@suse.cz, akpm@linux-foundation.org Vlastimil Babka wrote: > On 02/08/2017 11:32 AM, Tetsuo Handa wrote: > > I trivially get race conditions while testing below diff on linux-next-20170207. > > Is this diff doing something wrong? I tried CONFIG_KASAN=y but it reported nothing. > > You can't revert "mm, page_alloc: drain per-cpu pages from workqueue context" > without "mm, page_alloc: only use per-cpu allocator for irq-safe requests". OK. So, this test was invalid. Thank you. -- 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