FreeBSD 6.0, ThinkPad 600, dc0: watchdog timeout - ACPI?

Nate Lawson nate at
Sat Jun 10 00:29:05 UTC 2006

Doug White wrote:
> On Tue, 6 Jun 2006, Fred Koschara wrote:
>> I just purchased another ThinkPad 600 and installed FreeBSD 6.0, 
>> expecting it would go as smoothly as had my previous installations of 
>> FreeBSD on my Web, database and nameservers, on the desktop machine on 
>> which I'm experimenting with FreeBSD programming, and on the Dell 
>> Latitude where FreeBSD is one of the 5 operating systems I have 
>> installed.

Thanks for providing your experience, Doug.

> The TP600s require some special hacks to get going. I have a 600E that I 
> put 6.1 on a couple of weeks ago and needed to do the following:
> 1. Update to the latest BIOS and embedded controller firmware.

This is ALWAYS #1 on the list of solutions, don't submit a complaint 
until you've done this.

> 2. Boot into DOS with the PS2.EXE tool and disable all of the devices 
> you aren't using. Make sure at least 3 IRQs are assigned to PCI (I have 
> 9, 10, and 11 assigned). 3. Add 'hw.cbb.memory=0xd8000' to 
> /boot/loader.conf.

You probably just have to disable the 2ndary ATA bus (the one on the 
docking station).  Or maybe acpi_dock (only in -current) would help.


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