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[195.135.220.15]) by mx.google.com with ESMTPS id x36si23115edx.60.2019.05.29.11.09.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 May 2019 11:09:32 -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 0BD96AD89; Wed, 29 May 2019 18:09:32 +0000 (UTC) Date: Wed, 29 May 2019 20:09:31 +0200 From: Michal Hocko To: Mikhail Gavrilov Cc: Linux List Kernel Mailing , linux-mm@kvack.org Subject: Re: kernel BUG at mm/swap_state.c:170! Message-ID: <20190529180931.GI18589@dhcp22.suse.cz> References: 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 Wed 29-05-19 22:32:08, Mikhail Gavrilov wrote: > On Wed, 29 May 2019 at 09:05, Mikhail Gavrilov > wrote: > > > > Hi folks. > > I am observed kernel panic after update to git tag 5.2-rc2. > > This crash happens at memory pressing when swap being used. > > > > Unfortunately in journalctl saved only this: > > > > Now I captured better trace. > > : page:ffffd6d34dff0000 refcount:1 mapcount:1 mapping:ffff97812323a689 > index:0xfecec363 > : anon > : flags: 0x17fffe00080034(uptodate|lru|active|swapbacked) > : raw: 0017fffe00080034 ffffd6d34c67c508 ffffd6d3504b8d48 ffff97812323a689 > : raw: 00000000fecec363 0000000000000000 0000000100000000 ffff978433ace000 > : page dumped because: VM_BUG_ON_PAGE(entry != page) > : page->mem_cgroup:ffff978433ace000 > : ------------[ cut here ]------------ > : kernel BUG at mm/swap_state.c:170! Do you see the same with 5.2-rc1 resp. 5.1? -- Michal Hocko SUSE Labs