From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753058AbeAZKIf (ORCPT ); Fri, 26 Jan 2018 05:08:35 -0500 Received: from mx2.suse.de ([195.135.220.15]:38257 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752660AbeAZKIe (ORCPT ); Fri, 26 Jan 2018 05:08:34 -0500 Date: Fri, 26 Jan 2018 11:08:30 +0100 From: Michal Hocko To: Tetsuo Handa Cc: Eric Wheeler , hannes@cmpxchg.org, minchan@kernel.org, ying.huang@intel.com, mgorman@techsingularity.net, vdavydov.dev@gmail.com, akpm@linux-foundation.org, shakeelb@google.com, gthelen@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] mm,vmscan: Kill global shrinker lock. Message-ID: <20180126100830.GB5027@dhcp22.suse.cz> References: <201801251956.FAH73425.VFJLFFtSHOOMQO@I-love.SAKURA.ne.jp> <201801260312.w0Q3C0tr067684@www262.sakura.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201801260312.w0Q3C0tr067684@www262.sakura.ne.jp> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri 26-01-18 12:12:00, Tetsuo Handa wrote: > Would you answer to Michal's questions > > Is this a permanent state or does the holder eventually releases the lock? > > Do you remember the last good kernel? > > and my guess > > Since commit 0bcac06f27d75285 was not backported to 4.14-stable kernel, > this is unlikely the bug introduced by 0bcac06f27d75285 unless Eric > explicitly backported 0bcac06f27d75285. Can we do that in the original email thread please. Conflating these two things while we have no idea about the culprit is just mess. -- Michal Hocko SUSE Labs From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f72.google.com (mail-pg0-f72.google.com [74.125.83.72]) by kanga.kvack.org (Postfix) with ESMTP id 2211C6B0011 for ; Fri, 26 Jan 2018 05:08:35 -0500 (EST) Received: by mail-pg0-f72.google.com with SMTP id x24so6611796pge.13 for ; Fri, 26 Jan 2018 02:08:35 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id 70-v6si3507291pla.635.2018.01.26.02.08.33 for (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 26 Jan 2018 02:08:34 -0800 (PST) Date: Fri, 26 Jan 2018 11:08:30 +0100 From: Michal Hocko Subject: Re: [PATCH 1/2] mm,vmscan: Kill global shrinker lock. Message-ID: <20180126100830.GB5027@dhcp22.suse.cz> References: <201801251956.FAH73425.VFJLFFtSHOOMQO@I-love.SAKURA.ne.jp> <201801260312.w0Q3C0tr067684@www262.sakura.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201801260312.w0Q3C0tr067684@www262.sakura.ne.jp> Sender: owner-linux-mm@kvack.org List-ID: To: Tetsuo Handa Cc: Eric Wheeler , hannes@cmpxchg.org, minchan@kernel.org, ying.huang@intel.com, mgorman@techsingularity.net, vdavydov.dev@gmail.com, akpm@linux-foundation.org, shakeelb@google.com, gthelen@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Fri 26-01-18 12:12:00, Tetsuo Handa wrote: > Would you answer to Michal's questions > > Is this a permanent state or does the holder eventually releases the lock? > > Do you remember the last good kernel? > > and my guess > > Since commit 0bcac06f27d75285 was not backported to 4.14-stable kernel, > this is unlikely the bug introduced by 0bcac06f27d75285 unless Eric > explicitly backported 0bcac06f27d75285. Can we do that in the original email thread please. Conflating these two things while we have no idea about the culprit is just mess. -- 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