From owner-freebsd-scsi@FreeBSD.ORG Tue Sep 6 06:47:11 2005 Return-Path: X-Original-To: freebsd-scsi@freebsd.org Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5977116A41F for ; Tue, 6 Sep 2005 06:47:11 +0000 (GMT) (envelope-from nikhildharashivkar@gmail.com) Received: from rproxy.gmail.com (rproxy.gmail.com [64.233.170.207]) by mx1.FreeBSD.org (Postfix) with ESMTP id 754CF43D45 for ; Tue, 6 Sep 2005 06:47:09 +0000 (GMT) (envelope-from nikhildharashivkar@gmail.com) Received: by rproxy.gmail.com with SMTP id r35so938327rna for ; Mon, 05 Sep 2005 23:47:08 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=VoPrW1OIEzVvBkN4hfT48Ck5stzrPrDQQSKUJoH9fwcjwosaHogOU9FzUqBSurCqaSKeZzHIDE6J7t+Aoks0luE03eAeBqNG/F+USoXgIi1ZPUrbb+H9LAeJdfcOP5n1nz8jrjjcWDoIpGnHNvwDJ764EKAVwNFelnTHJraFb3k= Received: by 10.38.74.43 with SMTP id w43mr502892rna; Mon, 05 Sep 2005 23:47:08 -0700 (PDT) Received: by 10.38.12.59 with HTTP; Mon, 5 Sep 2005 23:47:08 -0700 (PDT) Message-ID: <17db6d3a05090523474f5385be@mail.gmail.com> Date: Tue, 6 Sep 2005 12:17:08 +0530 From: Nikhil Dharashivkar To: Scott Long In-Reply-To: <431D3849.3050706@samsco.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <17db6d3a0509051000622868bc@mail.gmail.com> <431C8D5B.7080309@samsco.org> <431C92F2.9090104@persistent.co.in> <431C93DD.20402@samsco.org> <17db6d3a0509052203b1da14a@mail.gmail.com> <431D3849.3050706@samsco.org> Cc: freebsd-hackers@freebsd.org, freebsd-scsi@freebsd.org Subject: Re: Adding new option to ktrace X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Sep 2005 06:47:11 -0000 Crashed occured only once at client side, for some long duration test. But it is informed that at some point to monitor the testing report should have some IO trace. =20 On 9/6/05, Scott Long wrote: > Nikhil Dharashivkar wrote: > > Hi Scott and Rajesh, > > Thanks for replying me. Basically what happend, while testing > > scsi driver on freebsd, at some point it crashes. So, there is no way > > to know how much IO is performed. To know the IO state just before the > > driver fails, i selected ktrace to print IO information whatever i ll > > get from dastrategy routine. >=20 > You have reason to believe that certain I/O patterns cause the crash? > What driver is being used? What is the crash? >=20 > Scott >=20 >=20 >=20 --=20 Thanks and Regards, Nikhil.