From mboxrd@z Thu Jan 1 00:00:00 1970 From: Killian De Volder Subject: Unable to detach caching device Date: Sat, 18 Jul 2015 17:29:16 +0200 Message-ID: <55AA70CC.9000101@megasoft.be> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from relay5-d.mail.gandi.net ([217.70.183.197]:36287 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750853AbbGRP3T (ORCPT ); Sat, 18 Jul 2015 11:29:19 -0400 Received: from mfilter44-d.gandi.net (mfilter44-d.gandi.net [217.70.178.175]) by relay5-d.mail.gandi.net (Postfix) with ESMTP id 66AE141C053 for ; Sat, 18 Jul 2015 17:29:18 +0200 (CEST) Received: from relay5-d.mail.gandi.net ([IPv6:::ffff:217.70.183.197]) by mfilter44-d.gandi.net (mfilter44-d.gandi.net [::ffff:10.0.15.180]) (amavisd-new, port 10024) with ESMTP id fMICivc6KOf5 for ; Sat, 18 Jul 2015 17:29:17 +0200 (CEST) Received: from [172.17.0.70] (cable-213-34-255-70.zeelandnet.nl [213.34.255.70]) (Authenticated sender: killian.de.volder@megasoft.be) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 2287741C04E for ; Sat, 18 Jul 2015 17:29:16 +0200 (CEST) Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-bcache@vger.kernel.org To: linux-bcache@vger.kernel.org I'm attempting to detach a a caching device. However it's not working, the bcache device stays dirty. # pwd /sys/block/bcache0/bcache # cat cache_mode state dirty_data writeback_running writeback_rate writethrough writeback writearound [none] dirty 2.0M 1 512 # cat writeback_rate_debug rate: 512/sec dirty: 2.0M target: 3.2G proportional: -3.2M derivative: 0 change: -3.2M/sec next io: 0ms I'm going to leave the machine on so I can extract any information you need. (dmesg contains no errors) Kind regards, Killian De Volder