From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cc-smtpout3.netcologne.de ([89.1.8.213]:43614 "EHLO cc-smtpout3.netcologne.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932256AbcA0QYv (ORCPT ); Wed, 27 Jan 2016 11:24:51 -0500 Received: from cc-smtpin3.netcologne.de (cc-smtpin3.netcologne.de [89.1.8.203]) by cc-smtpout3.netcologne.de (Postfix) with ESMTP id DE62112662 for ; Wed, 27 Jan 2016 17:24:47 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by cc-smtpin3.netcologne.de (Postfix) with ESMTP id DA26211DBA for ; Wed, 27 Jan 2016 17:24:47 +0100 (CET) Received: from [194.8.193.239] (helo=cc-smtpin3.netcologne.de) by localhost with ESMTP (eXpurgate 4.0.9) (envelope-from ) id 56a8ef4f-0bc5-7f0000012729-7f000001d4d2-1 for ; Wed, 27 Jan 2016 17:24:47 +0100 Received: from [194.8.193.239] (sys-239.netcologne.de [194.8.193.239]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by cc-smtpin3.netcologne.de (Postfix) with ESMTPSA for ; Wed, 27 Jan 2016 17:24:47 +0100 (CET) To: linux-btrfs@vger.kernel.org From: Christian Rohmann Subject: Progress indicator when (slowly) mounting a btrfs filesystem? Message-ID: <56A8EF4F.7060900@netcologne.de> Date: Wed, 27 Jan 2016 17:24:47 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hey btrfs-folks, when one cuts the power to a machine with an 8 device RAID6 btrfs mounted, it takes about 15 - 20 minutes to mount the btrfs again afterwards. This is with kernel 4.4 and btrfs-progs 4.4 mind you. I looked at iotop and it was reading from all disks heavily, so it was doing something. The long mount time for such a rather expected case might be a problem in itself, but either way, a mount action that takes a while needs to present some sort of progress indication, so the user knows what btrfs is at work getting things mounted. Regards Christian