From owner-freebsd-current Tue Feb 13 18:34:19 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id SAA27887 for current-outgoing; Tue, 13 Feb 1996 18:34:19 -0800 (PST) Received: from ibp.ibp.fr (ibp.ibp.fr [132.227.60.30]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id SAA27880 for ; Tue, 13 Feb 1996 18:34:15 -0800 (PST) Received: from blaise.ibp.fr (blaise.ibp.fr [132.227.60.1]) by ibp.ibp.fr (8.6.12/jtpda-5.0) with ESMTP id DAA25031 for ; Wed, 14 Feb 1996 03:33:44 +0100 Received: from (uucp@localhost) by blaise.ibp.fr (8.6.12/jtpda-5.0) with UUCP id DAA26121 for current@freebsd.org; Wed, 14 Feb 1996 03:33:48 +0100 Received: (uucp@localhost) by fasterix.frmug.fr.net (8.6.11/fasterix-941011) with UUCP id XAA21437 for current@freebsd.org; Tue, 13 Feb 1996 23:33:17 +0100 Received: (from regnauld@localhost) by tetard.frmug.fr.net (8.7.3/8.7.3/tetard-uucp-2.7) id UAA03176 for current@freebsd.org; Tue, 13 Feb 1996 20:27:19 +0100 (MET) From: Philippe Regnauld Message-Id: <199602131927.UAA03176@tetard.frmug.fr.net> Subject: Warning: SCSI reprobing is hazardous to your health? To: current@freebsd.org (current) Date: Tue, 13 Feb 1996 20:27:18 +0100 (MET) X-rene: Tu dois pas les avoir perdues, normalement. X-wing-fighter: et puis X-men, X-open, X-ta-mere... X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-current@freebsd.org Precedence: bulk Hi, I sometimes need to reprobe the SCSI bus (for example, plugging in a new device and having it appear). I happened to do just this the other day, putting back online my external Archive 60 QIC. I issued the following command: scsi -f /dev/cd0c -r ... so as to reprobe the bus (as I've read here or in hackers, the device you reprobe doesn't really matter -- the system will pick up any new devices). BTW, there was a CD in the drive, (2.1R in fact) and it was mounted. It panicked. I've sometimes seen this happen, but I've never found out why. So I rebooted the machine, and woe and behold: no more bootblocks. Booting a kernel from floppy painfully revealed the extent of the damage: no more disklabel... Fortunately I'd repartitioned my disk not long ago and remembered the offsets to the partitions (needless to say I've printed it out since!). - Has anybody heard of this kind of behaviour ? - The occasional panic after reprobe -- is that normal (not that I will try it out anymore). Configuration: 486 DX 2/80, 16 Mb RAM, NCR 810 + DEC DSP3107L 1 Gb HD, Sony CDU 555, Archive 60. -- Phil -- - [ regnauld@tetard.frmug.fr.net / +48.8N+2.3E / +33 1 4507 9391 / Sol 3 ] - - [ regnauld@freenix.fr / FreeBSD 2.x / ] - "Le schtroumpf est à l'homme ce que le bleu est au billard" - F.Berjon