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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 B8B4FC18E5A for ; Wed, 11 Mar 2020 10:29:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B413208E4 for ; Wed, 11 Mar 2020 10:29:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729027AbgCKK3E (ORCPT ); Wed, 11 Mar 2020 06:29:04 -0400 Received: from mx2.suse.de ([195.135.220.15]:41084 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726000AbgCKK3E (ORCPT ); Wed, 11 Mar 2020 06:29:04 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 59AB5B1DC; Wed, 11 Mar 2020 10:29:02 +0000 (UTC) Message-ID: <209f06496c1ef56b52b0ec67c503838e402c8911.camel@suse.com> Subject: Re: disk revalidation updates and OOM From: Martin Wilck To: He Zhe , Christoph Hellwig , jack@suse.cz, Jens Axboe , viro@zeniv.linux.org.uk, bvanassche@acm.org, keith.busch@intel.com, tglx@linutronix.de, yuyufen@huawei.com, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 11 Mar 2020 11:29:06 +0100 In-Reply-To: <93b395e6-5c3f-0157-9572-af0f9094dbd7@windriver.com> References: <93b395e6-5c3f-0157-9572-af0f9094dbd7@windriver.com> Content-Type: text/plain; charset="ISO-8859-15" User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2020-03-02 at 11:55 +0800, He Zhe wrote: > Hi, > > Since the following commit > https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=for-5.5/disk-revalidate&id=6917d0689993f46d97d40dd66c601d0fd5b1dbdd > until now(v5.6-rc4), > > If we start udisksd service of systemd(v244), systemd-udevd will scan > /dev/hdc > (the cdrom device created by default in qemu(v4.2.0)). systemd-udevd > will > endlessly run and cause OOM. I've tried to reproduce this, but so far I haven't been able to. Perhaps because the distro 5.5.7 kernel I've tried (which contains the offending commit 142fe8f) has no IDE support - the qemu IDE CD shows up as sr0, with the ata_piix driver. I have systemd-udevd 244. Enabling udisksd makes no difference, the system runs stably. ISO images can be "ejected" and loaded, single uevents are received and processed. Does this happen for you if you use ata_piix? Regards Martin