Date: Tue, 13 Feb 1996 20:27:18 +0100 (MET) From: Philippe Regnauld <regnauld@tetard.frmug.fr.net> To: current@freebsd.org (current) Subject: Warning: SCSI reprobing is hazardous to your health? Message-ID: <199602131927.UAA03176@tetard.frmug.fr.net>
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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
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