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Date: Mon, 11 Jun 2012 17:00:29 GMT
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To: freebsd-usb@FreeBSD.org
From: Hans Petter Selasky <hselasky@c2i.net>
Cc: 
Subject: usb/168743: panic: double fault caused by umass
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The following reply was made to PR usb/168743; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd@nagilum.org
Cc: freebsd-usb@freebsd.org,
 freebsd-gnats-submit@freebsd.org
Subject: usb/168743: panic: double fault caused by umass
Date: Mon, 11 Jun 2012 18:57:12 +0200

 Hi,
 
 This sounds like a missing MODULE_DEPEND() issue or your pendrive is returning 
 an error code to some of the SCSI commands which is not handled properly.
 
 
 Could you add these options to the kernel config file:
 
 options         KDB                     # Kernel debugger related code
 options         KDB_TRACE               # Print a stack trace for a panic
 
 Then get full backtrace.
 
 Is this issue reproducable. I cannot reproduce over here using a 9-stable 
 GENERIC kernel without "device umass".
 
 --HPS