Thinkpad X61s cannot boot 9.1-BETA1

[Andriy Gapon]

on 12/09/2012 15:54 Andriy Gapon said the following:
> on 12/09/2012 14:34 Lars Engels said the following:
>> Meanwhile I found out what's the cause of it. On 9.x it only hung from
>> time to time, but I tried a few weeks old CURRENT and it hung at every
>> boot at the same time.
>> With enabled verbose boot it looked like this:
>> http://bsd-geek.de/FreeBSD/IMAG0190.jpg
>>
>> Then I removed the AC cable and booted from battery and that worked. So
>> it seems to me that some ACPI change in CURRENT made the situation even
>> worse.
>>
> 
> Could you try to play with different eventtimer settings (preferably in current) ?
> You can use this thread / PR as a guide:
> http://thread.gmane.org/gmane.os.freebsd.devel.amd64/14480/focus=14495
> 
> The place where boot stop looks suspiciously close to the place where timer
> interrupts should start driving the system.
> 

Just in case.  My point is that your system might using a timer that stops in
certain (deeper) C-states.  Generally FreeBSD disables deeper C-states in such a
situation, but your system may require additional quirks.

-- 
Andriy Gapon