Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753164AbaF0IX3 (ORCPT ); Fri, 27 Jun 2014 04:23:29 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:37326 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752851AbaF0IX1 (ORCPT ); Fri, 27 Jun 2014 04:23:27 -0400 Message-ID: <1403857405.16560.0.camel@linux-fkkt.site> Subject: Re: ext4: total breakdown on USB hdd, 3.0 kernel From: Oliver Neukum To: Pavel Machek Cc: tytso@mit.edu, kernel list Date: Fri, 27 Jun 2014 10:23:25 +0200 In-Reply-To: <20140626202021.GA8512@xo-6d-61-c0.localdomain> References: <20140626202021.GA8512@xo-6d-61-c0.localdomain> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2014-06-26 at 22:20 +0200, Pavel Machek wrote: > Hi! > > Ok, this ext4 filesystem does _not_ have easy life: it is in usb > envelope, I wanted > to use it as a root filesystem, and it is connected to OLPC-1.75, > running some kind > of linux-3.0 kernels. > > So power disconnects are common, and even during regular reboot, I > hear disk doing > emergency parking. > > I don't know how barriers work over USB... Just like with other SCSI devices. HTH Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/