From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60718C28CC0 for ; Wed, 29 May 2019 18:09:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F3D02402E for ; Wed, 29 May 2019 18:09:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559153374; bh=gnKw2WEDduGax4sEEXJjd76ccNLaRKge7up8CAq41d8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=jWm4/csYSpZSry7J6AbPfrpcKch/5mgIToTD2bb+PMKgkkFANJkLo6zv1EzHJaBaI JgcUN8ljKhEN6w0jcWeq5o/Ty1ws75FHAo9MS1no3wGvagR5AS2266mtvURAlaLOoS XEVcbMshMwIxGbgR2HCp/auWI+VJU8sHaCLVK2iI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727503AbfE2SJd (ORCPT ); Wed, 29 May 2019 14:09:33 -0400 Received: from mx2.suse.de ([195.135.220.15]:39026 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727227AbfE2SJd (ORCPT ); Wed, 29 May 2019 14:09:33 -0400 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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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