From owner-freebsd-current Thu Apr 18 5:58:53 2002 Delivered-To: freebsd-current@freebsd.org Received: from gull.prod.itd.earthlink.net (gull.mail.pas.earthlink.net [207.217.120.84]) by hub.freebsd.org (Postfix) with ESMTP id EEC4F37B419 for ; Thu, 18 Apr 2002 05:58:46 -0700 (PDT) Received: from pool0042.cvx22-bradley.dialup.earthlink.net ([209.179.198.42] helo=mindspring.com) by gull.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16yBUa-0005jC-00; Thu, 18 Apr 2002 05:58:29 -0700 Message-ID: <3CBEC2D9.436485D0@mindspring.com> Date: Thu, 18 Apr 2002 05:58:01 -0700 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: sos@freebsd.dk Cc: msch@snafu.de, freebsd-current@FreeBSD.ORG Subject: Re: ATA errors on recent -current References: <200204180706.g3I76HmJ046472@freebsd.dk> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG "S=F8ren Schmidt" wrote: > It seems Terry Lambert wrote: > > My other hunch is that there will need to be a channel reserved > > for "reset" commands to be queued to the disk, so that you can > > queue more commands to it later (e.g. can't connect to send the > > reset because of the already disconnected commands in progress). > = > Terry, read the ATA spec, it doesn't work that way, tags on > ATA is very different from tags on SCSI, and beside a reset > is not a command, but a bit in a HW port.. I didn't mean for the reset itself, I meant for the process. You can't "take back" writes that are in progress and not acknowledged, in order to retry them after the reset, so as to not lose data. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message