From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756755Ab3JJQkw (ORCPT ); Thu, 10 Oct 2013 12:40:52 -0400 Received: from exprod5og111.obsmtp.com ([64.18.0.22]:38065 "EHLO exprod5og111.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756235Ab3JJQku (ORCPT ); Thu, 10 Oct 2013 12:40:50 -0400 Date: Thu, 10 Oct 2013 18:39:55 +0200 From: Karl Kiniger To: linux-kernel@vger.kernel.org Subject: tracing SCSI commands over SATA Message-ID: <20131010163955.GA13337@kipc2.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-GEHealthcare-MailScanner: Found to be clean X-GEHealthcare-MailScanner-From: karl.kiniger@med.ge.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I want to record all SCSI commands/status for a SATA DVD drive. Right now I am using a USB<>SATA bridge and wireshark on usbmon. Q: Can something similar be done without having to go over USB? I am interested only about the SCSI commands sent to a particular SATA drive and resulting status codes and also timing. ...looking for possible causes why a few drives are locking up for 10..20 minutes on DVD+RW packet writing on UDF and then continue like nothing happened. (linux tries hard to reset but the drives dont accept any commands until the 10..20 minutes are over), not even INQUIRE, nothing. Karl