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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 742A2CA9EA0 for ; Tue, 22 Oct 2019 22:24:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 34102207FC for ; Tue, 22 Oct 2019 22:24:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571783065; bh=ez8tkSR8txCVqD6DpckNBXg+7tEUdjKeAOm63rOmyXM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=JbZz2uwTdWMcYoirmzwRhwMl5bOlbrM+6OdRrbvsutPoHgGzuTqCNZ42NlPfEp28r HM8QwEUrtxglZ8YBKHTeOYSCjPukG1scskGa+oyGhAUyn4lQGqgDEjjCvpEcCJ1511 1fk2byM8Z6GTYpIoI+I0rqIa9GJudtl9eDNObtJg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731999AbfJVWYY (ORCPT ); Tue, 22 Oct 2019 18:24:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:46490 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731534AbfJVWYY (ORCPT ); Tue, 22 Oct 2019 18:24:24 -0400 Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 78847207FC; Tue, 22 Oct 2019 22:24:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571783062; bh=ez8tkSR8txCVqD6DpckNBXg+7tEUdjKeAOm63rOmyXM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=vzTJXRaht4iHlsW9y3944ge5TbrC6yKH9IVjZdFZh5zlGiIOxvngVjxMBBp8h1DHv 6zVXwLSzEnxzawWaeAXOQLkHPRwO+xtL4GtQIIGtkCSrw0orgCkUg+4aUzZwsKhirT UBAyPibXAELSA/0XRbQSVoq0L8Xb2U5f4DhwbXyk= Date: Tue, 22 Oct 2019 15:24:22 -0700 From: Andrew Morton To: linux-mm@kvack.org, linux-xfs@vger.kernel.org Cc: bugzilla-daemon@bugzilla.kernel.org, goodmirek@goodmirek.com, Hillf Danton , Dmitry Vyukov , Joel Fernandes , Tetsuo Handa Subject: Re: [Bug 205135] System hang up when memory swapping (kswapd deadlock) Message-Id: <20191022152422.e47fda82879dc7cd1f3cf5e5@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Tue, 22 Oct 2019 09:02:22 +0000 bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=205135 > > --- Comment #7 from goodmirek@goodmirek.com --- > Everyone who uses a swapfile on XFS filesystem seem affected by this hang up. > Not sure about other filesystems, I did not have a chance to test it elsewhere. > > This unreproduced bot crash could be related: > https://lore.kernel.org/linux-mm/20190910071804.2944-1-hdanton@sina.com/ Thanks. Might be core MM, might be XFS, might be Fedora. Hilf, does your patch look related? That seems to have gone quiet? Should we progress Tetsuo's patch?