From owner-freebsd-scsi Fri Apr 27 9:19:56 2001 Delivered-To: freebsd-scsi@freebsd.org Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by hub.freebsd.org (Postfix) with ESMTP id DD87537B423 for ; Fri, 27 Apr 2001 09:19:52 -0700 (PDT) (envelope-from j@uriah.heep.sax.de) Received: (from uucp@localhost) by sax.sax.de (8.9.3/8.9.3) with UUCP id SAA10883 for freebsd-scsi@FreeBSD.ORG; Fri, 27 Apr 2001 18:19:51 +0200 (CEST) Received: (from j@localhost) by uriah.heep.sax.de (8.11.3/8.11.3) id f3RFrlu56807 for freebsd-scsi@FreeBSD.ORG; Fri, 27 Apr 2001 17:53:47 +0200 (MET DST) (envelope-from j) Date: Fri, 27 Apr 2001 17:53:47 +0200 From: J Wunsch To: freebsd-scsi@FreeBSD.ORG Subject: Re: sa(4) jamming Message-ID: <20010427175347.A56791@uriah.heep.sax.de> Reply-To: Joerg Wunsch References: <20010427091852.L50185@uriah.heep.sax.de> <200104270902.f3R92V555575@uriah.heep.sax.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <200104270902.f3R92V555575@uriah.heep.sax.de>; from j@uriah.heep.sax.de on Fri, Apr 27, 2001 at 11:02:31AM +0200 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org As J Wunsch wrote: > The problem seems to be reproducible. After finishing 16 % of the > dump, it jammed again. Hmm, after unloading and reloading the medium, it works again. The degenerated performance and start-stop behaviour are gone now. Weird. Smells like a bug somewhere, but /where/? Could it be related to the SCSI bus reset that was needed to revive my pt0 device (see other thread)? The tape drive is on the same bus. Of course, the tape was idle while i issued the camcontrol reset command, but the cartridge had not been unloaded afterwards (until right now), so for sure sa(4) must have seen a unit attention when going to access the tape again. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message