From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f70.google.com (mail-wm0-f70.google.com [74.125.82.70]) by kanga.kvack.org (Postfix) with ESMTP id 44B2F6B0038 for ; Wed, 25 Jan 2017 09:21:48 -0500 (EST) Received: by mail-wm0-f70.google.com with SMTP id v77so38730037wmv.5 for ; Wed, 25 Jan 2017 06:21:48 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id s62si9825896wms.146.2017.01.25.06.21.46 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 25 Jan 2017 06:21:47 -0800 (PST) Date: Wed, 25 Jan 2017 15:21:42 +0100 From: Michal Hocko Subject: Re: [PATCH v6] mm: Add memory allocation watchdog kernel thread. Message-ID: <20170125142141.GT32377@dhcp22.suse.cz> References: <1478416501-10104-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp> <201612151924.HJJ69799.VSFLHOQFFMOtOJ@I-love.SAKURA.ne.jp> <201612282042.GDB17129.tOHFOFSQOFLVJM@I-love.SAKURA.ne.jp> <201701252303.FCI17866.FOJFHMtSQOFVLO@I-love.SAKURA.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201701252303.FCI17866.FOJFHMtSQOFVLO@I-love.SAKURA.ne.jp> Sender: owner-linux-mm@kvack.org List-ID: To: Tetsuo Handa Cc: akpm@linux-foundation.org, mgorman@suse.de, hannes@cmpxchg.org, vdavydov.dev@gmail.com, pmladek@suse.com, sergey.senozhatsky.work@gmail.com, vegard.nossum@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Wed 25-01-17 23:03:43, Tetsuo Handa wrote: > Andrew, what do you think about this version? There seems to be no objections. Well, this is not true. My main objection still holds. I simply do not think all the additional code is really worth it. Not enough to nack the patch, though, of course. I am not questioning that the watchdog might be useful for debugging. I just think that what we have currently tells us enough to debug issues. Sure, you will tell that this is not reliable, but I will argue that this should be fixed because that makes sense regardless of the stall warning. -- 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