usb/175731: detaching USB keyboard freezes other USB keyboards

[Hans Petter Selasky]

On Thursday 31 January 2013 15:03:03 Norbert Koch wrote:
> >Number:         175731
> >Category:       usb
> >Synopsis:       detaching USB keyboard freezes other USB keyboards
> >Confidential:   no
> >Severity:       non-critical
> >Priority:       low
> >Responsible:    freebsd-usb
> >State:          open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Thu Jan 31 14:10:00 UTC 2013
> >Closed-Date:
> >Last-Modified:
> >Originator:     Norbert Koch
> >Release:        9.0
> >Organization:
> 
> >Environment:
> FreeBSD  9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0: Thu Jan 24 16:31:49 CET
> 2013    
> root at entw-pr2.demig.intra:/usr/home/nk/src/kernel/src/sys/EMBEDDED_USBKBD_
> ONLY  i386
> 
> >Description:
> My kernel is compiled without support for atkbd. I only use USB keyboards.
> 
> Attaching is fine but when detaching, any of the keyboards - I tried up to
> three - the other keyboards freeze. If I attach the keyboard again the
> other keyboards unfreeze and work as before.
> 
> The problem has something to do with devd.
> Detaching works without problems in single user mode or with devd not
> running. As long as dev does not run *during* detaching things seem to be
> ok too.
> 
> Commenting out usb keyboard related entries in /etc/devd.conf
> or /etc/devd/usb.conf does not help.
> Commenting out syscons_setkeyboard in /etc/rc.d/syscons does not help
> either.
> 
> >How-To-Repeat:
> Attach two USB keyboards.
> Detach any of them.
> The still connected keyboards freezes.
> Reconnect other keyboard.
> Both keyboards work.

Hi,

Is this with or without X11?

Can you try 9-stable?

--HPS