On Wed, 28 Jan 2009 12:01:29 -0800, Dirk Hohndel <hohndel@xxxxxxxxxxxxx> wrote: > Any recommendations how to best approach debugging this? Attaching > strace to some processes before inserting the usb stick? I would try add some dump_stack() to ->queuecommand, to see if this is SG_IO or other source. Finding who sends the commands is the key. Another trick is to printk the completion handlers (w/ lookup_symbol). -- Pete -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html