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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 4E1A1C432BE for ; Wed, 1 Sep 2021 13:36:54 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 957AF60698 for ; Wed, 1 Sep 2021 13:36:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 957AF60698 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4H04pr18xtz2yNx for ; Wed, 1 Sep 2021 23:36:52 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lst.de (client-ip=213.95.11.211; helo=verein.lst.de; envelope-from=hch@lst.de; receiver=) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4H04pM3DVcz2xYd for ; Wed, 1 Sep 2021 23:36:25 +1000 (AEST) Received: by verein.lst.de (Postfix, from userid 2407) id A57EC6736F; Wed, 1 Sep 2021 15:36:18 +0200 (CEST) Date: Wed, 1 Sep 2021 15:36:18 +0200 From: Christoph Hellwig To: Abdul Haleem Subject: Re: [next-20210827][ppc][multipathd] INFO: task hung in dm_table_add_target Message-ID: <20210901133618.GA16687@lst.de> References: <68dde454-965a-0c44-374a-a0ca277150ee@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <68dde454-965a-0c44-374a-a0ca277150ee@linux.vnet.ibm.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: axboe@kernel.dk, sachinp , jack@suse.cz, linux-scsi , linux-kernel , dm-devel@redhat.com, linux-next , dougmill@us.ibm.com, Brian King , linuxppc-dev , hch@lst.de Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Wed, Sep 01, 2021 at 04:47:26PM +0530, Abdul Haleem wrote: > Greeting's > > multiple task hung while adding the vfc disk back to the multipath on my > powerpc box running linux-next kernel Can you retry to reproduce this with lockdep enabled to see if there is anything interesting holding this lock?