Re: port-xen/53569: wskbd double attach with DIAGNOSTIC xen kernel NetBSD-8.0_STABLE

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

The following reply was made to PR port-xen/53569; it has been noted by GNATS.

From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-xen-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        netbsd-bugs%netbsd.org@localhost
Subject: Re: port-xen/53569: wskbd double attach with DIAGNOSTIC xen kernel
 NetBSD-8.0_STABLE
Date: Sun, 2 Sep 2018 22:44:02 +0200

 On Sun, Sep 02, 2018 at 08:40:00PM +0000, oster%netbsd.org@localhost wrote:
 > >Number:         53569
 > >Category:       port-xen
 > >Synopsis:       wskbd double attaches with xen on NetBSD-8.0_STABLE
 > >Confidential:   no
 > >Severity:       serious
 > >Priority:       medium
 > >Responsible:    port-xen-maintainer
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Sun Sep 02 20:40:00 +0000 2018
 > >Originator:     Greg Oster
 > >Release:        NetBSD 8.0_STABLE
 > >Organization:
 > >Environment:
 > 	
 > 	
 > System: NetBSD thog 8.0_STABLE NetBSD 8.0_STABLE (THOG.gdb) #0: Sat Sep 1 11:17:06 CST 2018 oster@thog:/u1/builds/build187/src/obj/amd64/u1/builds/build187/src/sys/arch/amd64/compile/XEN3_DOM0.gdb amd64
 > Architecture: x86_64
 > Machine: amd64
 > >Description:
 > 
 > With DIAGNOSTIC turned on for XEN3_DOM0 kernel build, the following
 > panic is encountered:
 > 
 > ...
 > ukbd0 at uhidev0: 8 Variable keys. 6 Array codes
 > panic: kernel diagnostic assertion "!wskbd_console_initted" failed: file
 > "/u1/builds/build187/src/sys/dev/wscons/wskbd.c", line 540
 > fatal breakpoint trap in supervisor mode
 > ...
 > 
 > 
 > >How-To-Repeat:
 > 
 > Build a XEN3_DOM0 with DIAGNOSTIC turned on.  Perhaps have a USB keyboard 
 > plugged in?
 > 
 > >Fix:
 > 
 > Looks like an attempt to double-attach, but there was only one USB keyboard
 > ever hooked up.
 
 Even if so, it shouldn't be a problem to have multiple keyboard for the same
 console.
 The full dmesg could be usefull.
 
 -- 
 Manuel Bouyer <bouyer%antioche.eu.org@localhost>
      NetBSD: 26 ans d'experience feront toujours la difference
 --