From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 89511] USB-storage mount error Date: Sun, 04 Jan 2015 20:12:49 +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]:46827 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752778AbbADUMx (ORCPT ); Sun, 4 Jan 2015 15:12:53 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 125492014A for ; Sun, 4 Jan 2015 20:12:52 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id F10B8201BC for ; Sun, 4 Jan 2015 20:12:49 +0000 (UTC) In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=89511 --- Comment #35 from Alan Stern --- Yes, your problem is related to the journal. When ext4 adds an entry to the journal, it sends a SYNCHRONIZE CACHE command to make sure all data sent to the drive's cache has been stored properly. Your device doesn't like SYNCHRONIZE CACHE, so the journal write fails. To fix the problem, you need to use a later kernel version (like 3.18) or use a different USB storage device. -- You are receiving this mail because: You are watching the assignee of the bug.