Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753657Ab3GXTnW (ORCPT ); Wed, 24 Jul 2013 15:43:22 -0400 Received: from bedivere.hansenpartnership.com ([66.63.167.143]:36758 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752364Ab3GXTnU (ORCPT ); Wed, 24 Jul 2013 15:43:20 -0400 Message-ID: <1374694998.7382.33.camel@dabdike> Subject: Re: scsi scan: INQUIRY result too short (5), using 36 From: James Bottomley To: Tony Luck Cc: linux-scsi@vger.kernel.org, Linux Kernel Mailing List Date: Wed, 24 Jul 2013 12:43:18 -0700 In-Reply-To: References: Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.8.3 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 Content-Length: 1583 Lines: 45 On Wed, 2013-07-24 at 11:53 -0700, Tony Luck wrote: > v3.10 used to boot on this machine, linus latest doesn't. git bisect > points to this commit. > > commit e73823f7a2c921dcf068d34ea03bd682498d9e42 > Author: James Bottomley > Date: Tue May 7 15:38:18 2013 -0700 > > [SCSI] libsas: implement > 16 byte CDB support > > See attached console log for all the gory details. > > Let me know if you need any other information about > this machine or its config that isn't easily deducible > from the console log. Oops, apparently no-one I cc'd at intel actually bothered to check the patch for the isci driver. The looks to be that sci_swab32_cpy needs multiples of four, so for commands that aren't that, it's rounding the wrong way. Does this fix it? James --- diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 7b08215..99d2930 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -185,7 +185,7 @@ static void sci_io_request_build_ssp_command_iu(struct isci_request *ireq) cmd_iu->_r_c = 0; sci_swab32_cpy(&cmd_iu->cdb, task->ssp_task.cmd->cmnd, - task->ssp_task.cmd->cmd_len / sizeof(u32)); + (task->ssp_task.cmd->cmd_len+3) / sizeof(u32)); } static void sci_task_request_build_ssp_task_iu(struct isci_request *ireq) -- 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/