Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755135AbaLKEpg (ORCPT ); Wed, 10 Dec 2014 23:45:36 -0500 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:46482 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754245AbaLKEpf (ORCPT ); Wed, 10 Dec 2014 23:45:35 -0500 Message-ID: <1418273120.8310.20.camel@HansenPartnership.com> Subject: Re: [v3.16][v3.17][v3.18][ Regression] scsi: handle flush errors properly From: James Bottomley To: Joseph Salisbury Cc: steven@qumulo.com, "Martin K. Petersen" , "stable@vger.kernel.org" , LKML , linux-scsi@vger.kernel.org Date: Thu, 11 Dec 2014 07:45:20 +0300 In-Reply-To: <5488C478.9000209@canonical.com> References: <5488C478.9000209@canonical.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.7 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 Wed, 2014-12-10 at 17:08 -0500, Joseph Salisbury wrote: > Hello James, > > A kernel bug report was opened against Ubuntu [0]. After a kernel > bisect, it was found that reverting the following commit resolved this bug: If I read this bug report correctly, it's saying a USB attached device produces an error when doing a "shred" but the same device PCI attached doesn't. Presumably shred sends some type of zero length command USB storage doesn't like. What is shred actually doing (what commands is it sending)? James -- 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/