Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp879230pxb; Wed, 1 Sep 2021 11:57:27 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx3TIueN5ziBznYtOlf3viVnflx9oKSwvSqI39e5CwEg/AVOV86g6lkIScutu9IkKalbpV3 X-Received: by 2002:aa7:cb86:: with SMTP id r6mr1061657edt.181.1630522647736; Wed, 01 Sep 2021 11:57:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630522647; cv=none; d=google.com; s=arc-20160816; b=HXiQBrh3tshwMADsF/x9dIiAgsOTvrL35FJUaC6D50sQ2BFGgA71mjZ+UHrHPFmWR3 SKQIEfY1xlpY+sTds+Anv8Lx1JOZ90rp/xMQsY5PQAZdJm0MZfo9wnmv3OJj7FyVqOMf Lq4wdwigTzi12uqESUA3hkOcAWyxgIqwK4rwbK3L3Iq3rbNvIqrj/93Fw1r0AS4I1SHX ffYTSdfLqXTuAOJk9ZefPqcyORjGvefl40RwKPUXP/jAPfyCwfwyQBcoRm2PXxXs1tIO l+QUmREIW0yBh38VT/UJZQSWCi0wseneMwFV5Da5X/AsNle7EDBG3vGC7mnKs3mnD7gZ jyug== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=4l4RFbKWmqOyfcB2bcH6EB6kYV/76PyLQgLhMXZ+MLI=; b=fJDvMXQNtk2A5yps2ZQ63JtPxFhethXdKlmAo3GAKb7V9OoIlwAsiISaw6f3sdvk90 xlEu4MVx0jG5RK08o5ShAgXC/my4T4CYwVIZjyO9m0Nv9iJ4pJor7plQNRLsVmYcy1yD ApHM2PmfspyR6c9tbw1kF/7GhAaW+rZDSfss3ouD+9xefOr2S1rr+4MoJlkBK0MmE+D9 TUH0Lc2jzPPY1ehprojoj811qWpqFqVHV4rM84vs4DWKDqHfCnW3Q4d7+TAtAsuiUk4/ Pf1ZoB5mZkzNJvNhBZrckRPUiO7MBvBvhC/N9a7GNbJATfR0f+hYqOEmgTwfDUZ5u3W1 0YqA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id e26si680711ejl.88.2021.09.01.11.57.04; Wed, 01 Sep 2021 11:57:27 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244260AbhIANhU (ORCPT + 99 others); Wed, 1 Sep 2021 09:37:20 -0400 Received: from verein.lst.de ([213.95.11.211]:47951 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244227AbhIANhS (ORCPT ); Wed, 1 Sep 2021 09:37:18 -0400 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 Cc: linux-kernel , linux-scsi , linux-next , hch@lst.de, jack@suse.cz, axboe@kernel.dk, linuxppc-dev , dm-devel@redhat.com, sachinp , Brian King , dougmill@us.ibm.com 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) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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?