From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752082AbdEBHbz (ORCPT ); Tue, 2 May 2017 03:31:55 -0400 Received: from mx2.suse.de ([195.135.220.15]:50636 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751367AbdEBHbn (ORCPT ); Tue, 2 May 2017 03:31:43 -0400 Date: Tue, 2 May 2017 09:31:39 +0200 From: Michal Hocko To: Arthur Marsh Cc: Linux Kernel Mailing List , linux-mm@kvack.org Subject: Re: 4.11.0-rc8+/x86_64 desktop lockup until applications closed Message-ID: <20170502073138.GA14593@dhcp22.suse.cz> References: <20170427092636.GD4706@dhcp22.suse.cz> <99a78105-de58-a5e1-5191-d5f4de7ed5f4@internode.on.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <99a78105-de58-a5e1-5191-d5f4de7ed5f4@internode.on.net> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun 30-04-17 15:33:50, Arthur Marsh wrote: > > > Michal Hocko wrote on 27/04/17 18:56: > >On Thu 27-04-17 18:36:38, Arthur Marsh wrote: > >[...] > >>[55363.482931] QXcbEventReader: page allocation stalls for 10048ms, order:0, > >>mode:0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null) > > > >Are there more of these stalls? > > I haven't seen the same kinds of logging in dmesg, but a few minutes ago I > did see that the desktop had locked up and after remotely logging in and > doing a kill -HUP of iceweasel/firefox, saw this: > > [92311.944443] swap_info_get: Bad swap offset entry 000ffffd > [92311.944449] swap_info_get: Bad swap offset entry 000ffffe > [92311.944451] swap_info_get: Bad swap offset entry 000fffff Pte swap entry seem to be clobbered. That suggests a deeper problem and a memory corruption. -- Michal Hocko SUSE Labs