Date: Mon, 11 Jun 2012 18:57:12 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd@nagilum.org Cc: freebsd-gnats-submit@freebsd.org, freebsd-usb@freebsd.org Subject: usb/168743: panic: double fault caused by umass Message-ID: <201206111857.12147.hselasky@c2i.net> In-Reply-To: <201105281635.57055.hselasky@c2i.net> References: <201105280113.p4S1DWgM081572@red.freebsd.org> <alpine.BSF.2.00.1105281024440.18707@joyce.lan> <201105281635.57055.hselasky@c2i.net>
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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
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