can't mount root disk with ACPI enabled

[Johannes Hofmann]

Sepherosa Ziehau <sepherosa at gmail.com> wrote:
> On Tue, May 19, 2009 at 7:33 PM, Johannes Hofmann
> <johannes.hofmann at gmx.de> wrote:
>> Hi,
>>
>> starting with revision
>>
>> commit 50b53814fb840b70162a846420b75c5bb9432931
>> Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
>> Date:   Sun May 17 13:11:50 2009 +0800
>>
>>    More clock cleanup:
>>
>>    - Move rtc initialization to SI_BOOT2_CLOCKREG, SI_ORDER_FIRST
>>    - Staticize cpu_initclocks()
>>
>>
>> My thinkpad T42 fails to mount the root device with ACPI enabled. When
>> I boot without ACPI it works fine.
> 
> Looks like acpi timer is whacked.  Could you do following test:
> set debug.acpi.disabled="timer"
> and boot the problematic kernel?

This doesn't help. Unfortunately I can't read the complete console
output when it fails...

Regards,
Johannes