Re: Has anyone been able to actually boot the AMD64 kernel after r194958?

Pegasus Mc Cleaft <ken_at_mthelicon.com> writes:

> On Thursday 02 July 2009 15:50:31 Paul Wootton wrote:
>>
>> With you saying this, I decided to try GENERIC kernel configuration and
>> that builds and runs just fine. I suspect that Peg and myself have
>> something in our kernel conf files that is causing an issue. I'll have a
>> go later on and see if I can narrow it down a little bit more
>>
>> Paul
>>
> Hi Paul, 
>
> 	I think I may have tracked down the trigger, although I dont know how to pin-
> point the cause. 
>
> 	It looks like compiling in the radeondrm driver into the kernel is the 
> culprit. if I omit that line from my kernel config, the latest kernels will 
> compile and boot properly on my machine.  I'm using a R7xx (but it load the 
> R6xx code) radeon HD card. From talking to you, I know you are using a proper 
> R6xx card. 

I think this is related to the recent problem described in
"panic on acpi_cpu_c1()" thread[1]. There is at least one patch and
two workarounds (load drm module after boot or set hw.drm.msi=0 at
loader prompt).

[1] http://docs.freebsd.org/cgi/mid.cgi?4A4D3665.3060502

>
> 	Strangely I can kldload the driver after the machine has booted and all is 
> well, it just seems to hate being compiled into the kernel.
>
> 	Can you see if this is the same on your machine?
>
> Peg