Error with kernel PAE option

[Manolis Kiagias]

Robert Fitzpatrick wrote:
> On Tue, 2008-10-21 at 18:43 +0300, Manolis Kiagias wrote:
>   
>> Robert Fitzpatrick wrote:
>>     
>>> Trying to build my own kernel with PAE option and getting the following
>>> error...
>>>
>>> /usr/src/sys/dev/advansys/advansys.c: In function 'adv_action':
>>> /usr/src/sys/dev/advansys/advansys.c:259: warning: cast from pointer to
>>> integer of different size
>>> *** Error code 1
>>>
>>> I removed the PAE option keeping my SMP option in the kernel
>>> configuration for this dual proc server and it builds fine. Any idea
>>> what I can do for this error?
>>>
>>>   
>>>       
>> Have a look at:
>>
>>  /usr/src/sys/i386/conf/PAE
>>
>> Is the device that is causing the problem listed with a "nodevice" entry?
>> I guess in your case, it is the "adv" device, and it is listed. This 
>> means it does not work with a PAE kernel.
>>     
>
> Thanks, yes, I have nodevice in the PAE file for adv. What does this
> mean and/or how can I address this problem? Should I just remove the
> entry from the PAE file?
>   

No.  The idea behind the "PAE" file is that whatever you see with 
nodevice is not supported by PAE kernels.  Even if you manage to compile 
a kernel with the device, you will just get into trouble.
The idea behind this file is that you change the line:

include GENERIC

on the top, to your own custom kernel configuration file.
Then you compile with

make buildkernel KERNCONF=PAE

which gets all your settings from your own file *minus* the ones that 
are incompatible with PAE  (the ones identified with nodevice)
>  
>   
>> How about going with the 64bit version of FreeBSD?
>>     
>
> That was my first try, but the CPU appears not to support amd64 as there
> are no AMD Features listed in dmesg.
>
>   
Is it a 64bit CPU? The AMD64 version of FreeBSD supports the Intel 64bit 
(Core2 / Quad / Xeon / Pentium 4 / Pentium D) processors as well, 
regardless of the "AMD" in its name.