From owner-freebsd-scsi@FreeBSD.ORG  Sat Aug 28 12:36:48 2010
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Message-ID: <4C78FF01.5020500@langille.org>
Date: Sat, 28 Aug 2010 08:20:17 -0400
From: Dan Langille <dan@langille.org>
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Subject: camcontrol rescan all - locks system
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Hi,

Running FreeBSD 8.1 stable on this particular box.  I ran a camcontrol 
devlist and didn't see my external tape library listed.  I powered it up 
and ran a 'camcontrol rescan all'.  Now the system is froxen.  Not 
crashed, but nearly frozen.  It responds to pings.  New ssh sessions are 
  not connecting.  Existing ssh sessions take one command and do not 
respond.  The console takes my login id, but does not prompt for the 
password.

I could reboot, but I'm about to go out for a bit and figured I'd ask 
here and see what happens in my absence.

:)