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[23.128.96.18]) by mx.google.com with ESMTP id p10si3542312edy.86.2020.08.13.08.30.25; Thu, 13 Aug 2020 08:30:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@cmpxchg-org.20150623.gappssmtp.com header.s=20150623 header.b=HG4WQqEJ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=cmpxchg.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbgHMP1n (ORCPT + 99 others); Thu, 13 Aug 2020 11:27:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726167AbgHMP1m (ORCPT ); Thu, 13 Aug 2020 11:27:42 -0400 Received: from mail-qk1-x743.google.com (mail-qk1-x743.google.com [IPv6:2607:f8b0:4864:20::743]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2418C061383 for ; Thu, 13 Aug 2020 08:27:41 -0700 (PDT) Received: by mail-qk1-x743.google.com with SMTP id d14so5477214qke.13 for ; Thu, 13 Aug 2020 08:27:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=G9xj0y6YeO21IlkG6XCM+8OPoUpTIPBGk2H9BHdLfSg=; b=HG4WQqEJcLlVKhUoZ+ZzL2ku31xqzCdktta2BUIcGHOHeXS2x+Z+bpSKozf/uKsSU6 nH7FjwY8wREbLLxUQ0XutkdGbEKbrqq2maifB1FgpRjn0gi4ASzmNZTkeAoeONFbjGSK AMrXPvoE5cT0o0gmAciyEZSK5xawGLw+Qq7J6orOfK2N8RSPMApEKs3SQ6RnOIxcXOPO yJESYqBLxp2AeIhjY9Khe6Xzs/ORGoGruEctyh3JEfGl8DGxJk/Xe6vxtlES6FOFF7uD 7L6Df9CYLSzw/igPnf62aobisTPa7qmceeUvn5HRLK8QZwqNHxCHgcSZtMeO6prczf3v GFJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=G9xj0y6YeO21IlkG6XCM+8OPoUpTIPBGk2H9BHdLfSg=; b=S/ccpsVNoAZj4sJQm4QHEugLtWJ2oQwt6AkpZeNjt1Eh46w8jIyYFE1OM4lfwb2mwW d5Nlrf0RputRazhuxQIXdKO44h3VhdRVHnLJ/76xC76Q3JrYYrFYIHij2McTU89zYJPt 37zmxd1c7AZk756CB8LSstyHOQVXfxq8mCQL8/kkdbXsEp0vCkJ+CPwBpuRoJkNWNn/j remLEQZ3u0O77hSc6LnliMeJ5MC54MKvDwDY/yndMN0f083tZUiGx2U8NoMQ2vb2YBvv 7Lx1VWHDuG65tayY/nUgvpK0P86Fem1XLaXAMNIQjOD9bXnwb5TIJQY8hoD0pA/ta1jv 7PIQ== X-Gm-Message-State: AOAM533RuxrR9WCUcbN+vKB9K3fy96HV92zPiikcL1H1iZzeTGj2CXm5 OjF5jOjntMeZ9pTT0LbAhxKf6g== X-Received: by 2002:a37:a54b:: with SMTP id o72mr5037864qke.289.1597332460693; Thu, 13 Aug 2020 08:27:40 -0700 (PDT) Received: from localhost ([2620:10d:c091:480::1:7cdc]) by smtp.gmail.com with ESMTPSA id n184sm5795880qkn.49.2020.08.13.08.27.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2020 08:27:40 -0700 (PDT) Date: Thu, 13 Aug 2020 11:26:34 -0400 From: Johannes Weiner To: Michal Hocko Cc: syzbot , Roman Gushchin , akpm@linux-foundation.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, vdavydov.dev@gmail.com Subject: Re: upstream boot error: WARNING in mem_cgroup_css_alloc Message-ID: <20200813152634.GB701678@cmpxchg.org> References: <00000000000019317f05acbf31bd@google.com> <20200813104416.GE9477@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200813104416.GE9477@dhcp22.suse.cz> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 13, 2020 at 12:44:16PM +0200, Michal Hocko wrote: > This smells like 3e38e0aaca9e ("mm: memcg: charge memcg percpu memory to > the parent cgroup"). I just replied to the other thread on this issue here: https://lore.kernel.org/lkml/20200813152033.GA701678@cmpxchg.org/