From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) by kanga.kvack.org (Postfix) with ESMTP id A582B6B0008 for ; Fri, 12 Oct 2018 06:47:34 -0400 (EDT) Received: by mail-pl1-f198.google.com with SMTP id d40-v6so8854711pla.14 for ; Fri, 12 Oct 2018 03:47:34 -0700 (PDT) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp. [202.181.97.72]) by mx.google.com with ESMTPS id w34-v6si860292pgk.596.2018.10.12.03.47.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Oct 2018 03:47:33 -0700 (PDT) Subject: Re: [RFC PATCH] memcg, oom: throttle dump_header for memcg ooms without eligible tasks From: Tetsuo Handa References: <000000000000dc48d40577d4a587@google.com> <20181010151135.25766-1-mhocko@kernel.org> <201810110637.w9B6b9eH044188@www262.sakura.ne.jp> Message-ID: <7bb967ec-81ae-2c07-7e58-9ad23167bb66@i-love.sakura.ne.jp> Date: Fri, 12 Oct 2018 19:47:03 +0900 MIME-Version: 1.0 In-Reply-To: <201810110637.w9B6b9eH044188@www262.sakura.ne.jp> Content-Type: text/plain; charset=iso-2022-jp Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko , hannes@cmpxchg.org Cc: linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, Michal Hocko , guro@fb.com, kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org, rientjes@google.com, yang.s@alibaba-inc.com On 2018/10/11 15:37, Tetsuo Handa wrote: > Michal Hocko wrote: >> Once we are here, make sure that the reason to trigger the OOM is >> printed without ratelimiting because this is really valuable to >> debug what happened. > > Here is my version. > Hmm, per mem_cgroup flag would be better than per task_struct flag.