driver bug: Unable to set devclass (devname: (null))

[pluknet]

2010/1/8 martinko <gamato at users.sf.net>:
> Hi,
>
> This is 8.0-RELEASE-p2 and I see the following during boot:
>
> Jan  8 09:38:46 mb-aw1n-bsd kernel: Timecounter "TSC" frequency 1993542975
> Hz quality 800
> Jan  8 09:38:46 mb-aw1n-bsd kernel: Timecounters tick every 1.000 msec
> Jan  8 09:38:46 mb-aw1n-bsd kernel: firewire0: 1 nodes, maxhop <= 0 cable
> IRM irm(0)  (me)
> Jan  8 09:38:46 mb-aw1n-bsd kernel: firewire0: bus manager 0
> Jan  8 09:38:46 mb-aw1n-bsd kernel: usbus0: 12Mbps Full Speed USB v1.0
> Jan  8 09:38:46 mb-aw1n-bsd kernel: usbus1: 12Mbps Full Speed USB v1.0
> Jan  8 09:38:46 mb-aw1n-bsd kernel: usbus2: 12Mbps Full Speed USB v1.0
> Jan  8 09:38:46 mb-aw1n-bsd kernel: usbus3: 480Mbps High Speed USB v2.0
> Jan  8 09:38:46 mb-aw1n-bsd kernel: driver bug: Unable to set devclass
> (devname: (null))
>                                    ^^^^^^^^^^-- ???
> Jan  8 09:38:46 mb-aw1n-bsd kernel: ad0: 76319MB <HTS548080M9AT00 MG4OA53A>
> at ata0-master UDMA100
>
> I'm not sure which driver spits it out -- perhaps new USB stack ?
>

There was a thread which might be helpful to identify a buggy driver:
http://lists.freebsd.org/pipermail/freebsd-current/2009-March/004272.html

-- 
wbr,
pluknet