usb/125736: [ukbd] [hang] system hangs after AT keyboard detect if ukbd loaded as a module

[Martin Matuska]

The following reply was made to PR usb/125736; it has been noted by GNATS.

From: Martin Matuska <mm at FreeBSD.org>
To: bug-followup at FreeBSD.org, admin at lissyara.su
Cc:  
Subject: Re: usb/125736: [ukbd] [hang] system hangs after AT keyboard detect
 if ukbd loaded as a module
Date: Tue, 27 Jul 2010 14:13:10 +0200

  I can confirm this and narrow it down a little:
 
 - this happens only if ukbd is already present in the kernel (e.g.
 GENERIC) and ukbd.ko gets loaded at boot
 - I can reproduce it on all my FreeBSD machines of different versions
 with GENERIC or other kernel containing ukbd
 - reproducible in virtualbox
 
 Steps to reproduce:
 - use a GENERIC kernel
 - escape to loader prompt on boot, type "load ukbd.ko"
 - type "boot" or "boot -v" for verbose prompt
 
 Boot hangs at keyboard detection.