re: kern/54023: assertion panic during shutdown

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR kern/54023; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost
Subject: re: kern/54023: assertion panic during shutdown
Date: Sat, 02 Mar 2019 08:27:34 +1100

 can you turn on USB_DEBUG and UHID_DEBUG, make sure that usb_debug
 is set in sysctl, make sure ddb will be entered (ddb.onpanic=1),
 and since the keyboard probably won't work (it is either the kbd
 or mouse that is triggering this fault), also set ddb.commandonenter
 to something like "show kernhist usbhist", then we may even get a
 useful usb log of what it was doing before the crash.  it may
 scroll a lot -- but the really useful stuff is likely in the last
 part, so hopefully a picture not video will suffice.
 
 thanks.
 
 
 .mrg.
 
 ps: it occurs to me another test case that isn't reboot would be
 to (remotely) use drvctl -d to detach the ukbd/ums devices and
 see if either or both trigger this problem directly there, or if
 something else is the trigger..