>Number:         15390
>Category:       kern
>Synopsis:       uhidev without uhid causes kernel panic
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 27 05:01:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Luke Mewburn
>Release:        NetBSD 1.5ZA
>Organization:
Luke Mewburn  <lukem@wasabisystems.com>  http://www.wasabisystems.com
Luke Mewburn     <lukem@netbsd.org>      http://www.netbsd.org
Wasabi Systems - NetBSD hackers for hire
NetBSD - the world's most portable UNIX-like operating system
>Environment:
System: NetBSD argo.mewburn.net 1.5ZA NetBSD 1.5ZA (ARGO) #0: Tue Jan 22 11:21:31 EST 2002 lukem@hippolyte:/var/scratch/obj.i386/sys/ARGO i386
Architecture: i386
Machine: i386
>Description:
	whilst testing the i386 INSTALL kernel, i experienced panics
	upon boot. here's the tail end of the dmesg (10 finger copied):

		md0: internal 2048 KB image area
		uhidev0 at uhub0 port 1 configuration 1 interface 0
		uhidev0: Microsoft Microsoft IntelliMouse< Optical, rev
		    1.10/1.00, addr 2, icalss 3/1
		uvm_fault(0xc05fcc60, 0x0, 0, 3) -> e
		kernel: page fault trap, code=0
		Stopped in pid 3 (usb0) at uhidev_attach+0x322:
		    movel %eax, 0x34(%edx)

		db> t
		uhidev_attach(c17f7a40,c1819e80,e3bc0e5c,c019e9b4,c1819e80,
		    e3bc0e5c,c17f7a54,c019e537) at uhidev_attach+0x322
		config_attach(...) at config_attach+0x22c
		config_found_sm(...) at config_found_sm+0x2f
		usbd_probe_and_attach(...) at usbd_probe_and_attach+0x1d9
		usbd_new_device(...) at usbd_new_device+0x231
		uhub_explore(...) at uhub_explore_0x230
		usb_discover(...) at usb_discover+0x24
		usb_event_thread(...) at usb_event_thread+0x2d

	if i enable
		uhid*   at uhidev? reportid ?
	or i unplug the mouse before boot, the problem goes away.

>How-To-Repeat:
	boot an INSTALL kernel on a machine with a USB mouse plugged in.

>Fix:
	`ask lennart nicely' ? :)
>Release-Note:
>Audit-Trail:
>Unformatted: