From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f175.google.com (mail-qk0-f175.google.com [209.85.220.175]) by kanga.kvack.org (Postfix) with ESMTP id ED7CC82F64 for ; Wed, 21 Oct 2015 10:49:09 -0400 (EDT) Received: by qkca6 with SMTP id a6so37436071qkc.3 for ; Wed, 21 Oct 2015 07:49:09 -0700 (PDT) Received: from resqmta-ch2-05v.sys.comcast.net (resqmta-ch2-05v.sys.comcast.net. [2001:558:fe21:29:69:252:207:37]) by mx.google.com with ESMTPS id o2si8271055qki.111.2015.10.21.07.49.09 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 21 Oct 2015 07:49:09 -0700 (PDT) Date: Wed, 21 Oct 2015 09:49:07 -0500 (CDT) From: Christoph Lameter Subject: Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks In-Reply-To: <20151021143337.GD8805@dhcp22.suse.cz> Message-ID: References: <201510212126.JIF90648.HOOFJVFQLMStOF@I-love.SAKURA.ne.jp> <20151021143337.GD8805@dhcp22.suse.cz> Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Tetsuo Handa , linux-mm@kvack.org, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, rientjes@google.com, oleg@redhat.com, kwalker@redhat.com, akpm@linux-foundation.org, hannes@cmpxchg.org, vdavydov@parallels.com, skozina@redhat.com, mgorman@suse.de, riel@redhat.com On Wed, 21 Oct 2015, Michal Hocko wrote: > Because all the WQ workers are stuck somewhere, maybe in the memory > allocation which cannot make any progress and the vmstat update work is > queued behind them. > > At least this is my current understanding. Eww. Maybe need a queue that does not do such evil things as memory allocation? -- 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