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[195.135.220.15]) by mx.google.com with ESMTPS id v3si9630815edm.338.2019.05.28.11.21.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 May 2019 11:21:33 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning mhocko@kernel.org does not designate 195.135.220.15 as permitted sender) smtp.mailfrom=mhocko@kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 33F7CAEA0; Tue, 28 May 2019 18:21:33 +0000 (UTC) Date: Tue, 28 May 2019 20:21:32 +0200 From: Michal Hocko To: Pingfan Liu Cc: Qian Cai , Andrew Morton , Barret Rhoden , Dave Hansen , Mike Rapoport , Peter Zijlstra , Michael Ellerman , Ingo Molnar , Oscar Salvador , Andy Lutomirski , Thomas Gleixner , linux-mm@kvack.org, LKML Subject: Re: [PATCH -next v2] mm/hotplug: fix a null-ptr-deref during NUMA boot Message-ID: <20190528182132.GH1658@dhcp22.suse.cz> References: <20190512054829.11899-1-cai@lca.pw> <20190513124112.GH24036@dhcp22.suse.cz> <1557755039.6132.23.camel@lca.pw> <20190513140448.GJ24036@dhcp22.suse.cz> <1557760846.6132.25.camel@lca.pw> <20190513153143.GK24036@dhcp22.suse.cz> <20190522111655.GA4374@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu 23-05-19 12:00:46, Pingfan Liu wrote: [...] > > Yes, but maybe it will pay great effort on it. > > > And as a first step, we can find a way to fix the bug reported by me > and the one reported by Barret Can we try http://lkml.kernel.org/r/20190513140448.GJ24036@dhcp22.suse.cz for starter? -- Michal Hocko SUSE Labs