usb/76684: Toshiba PDR-M4 camera connected via USB hangs system

[Craig Rodrigues]

>Number:         76684
>Category:       usb
>Synopsis:       Toshiba PDR-M4 camera connected via USB hangs system
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-usb
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 25 23:30:16 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Craig Rodrigues
>Release:        FreeBSD 6.0-CURRENT i386
>Organization:
>Environment:
System: FreeBSD dibbler.crodrigues.org 6.0-CURRENT FreeBSD 6.0-CURRENT #52: Tue Jan 25 11:25:13 EST 2005 rodrigc at dibbler.crodrigues.org:/usr/obj/usr/src/sys/MYKERNEL1 i386


	
>Description:
Connecting my Toshiba PDR-M4 camera via USB causes FreeBSD to lock up hard.
Keyboard and mouse are unresponsive, and I cannot break into the
kernel debugger via keyboard to get a stack trace.

I get the following messages in dmesg:

umass0: Toshiba PDR-M, rev 1.00/1.00 addr 2
umass0: SCSI over Bulk-Only; quirks = 0x0000

See the following messages for further info:

http://lists.freebsd.org/mailman/htdig/freebsd-usb/2004-November/000245.html
http://lists.freebsd.org/mailman/htdig/freebsd-usb/2004-November/000246.html


Help on how to debug and solve this problem would be appreciated.

>How-To-Repeat:
	
>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted: