From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 89511] USB-storage mount error Date: Fri, 09 Jan 2015 13:46:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: linux-ext4@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.136]:48103 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756671AbbAINqd (ORCPT ); Fri, 9 Jan 2015 08:46:33 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 529D8205DA for ; Fri, 9 Jan 2015 13:46:31 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id 4C38E205BC for ; Fri, 9 Jan 2015 13:46:29 +0000 (UTC) In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=89511 --- Comment #43 from Jun Itou --- When even 3.2.62 reboots an HDD in power supply on, it is "write through". It only becomes "write back" when I reset an HDD. Will it be that a bug of the material came to the front? Only a controller of D8927GC-002 becomes "write back" when I initialize it, is it the thing which it is not possible for in "write through" at the time of recognition somehow? root@sv-server:~# uname -a Linux sv-server 3.2.62 #1 SMP Fri Jan 9 19:06:10 JST 2015 x86_64 GNU/Linux root@sv-server:~# cat /sys/block/sdb/device/scsi_disk/*/cache_type write through root@sv-server:~# udevadm info --query=path --name=/dev/sdb /devices/pci0000:00/0000:00:11.0/0000:02:03.0/usb1/1-1/1-1:1.0/host3/target3:0:0/3:0:0:0/block/sdb root@sv-server:~# echo -n "1-1" > /sys/bus/usb/drivers/usb/unbind root@sv-server:~# echo -n "1-1" > /sys/bus/usb/drivers/usb/bind root@sv-server:~# cat /sys/block/sdb/device/scsi_disk/*/cache_type write back -- You are receiving this mail because: You are watching the assignee of the bug.