From owner-freebsd-hackers@FreeBSD.ORG  Fri Feb 12 15:52:14 2010
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From: james toy <nil@opensesame.st>
Date: Fri, 12 Feb 2010 10:51:54 -0500
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To: Andrew Brampton <brampton+freebsd@gmail.com>
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Subject: Re: KLD hello.ko: depends on kernel - not available or version 
	mismatch
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On Thu, Feb 11, 2010 at 08:06, Andrew Brampton
<brampton+freebsd@gmail.com> wrote:
> On Thu, Feb 11, 2010 at 2:25 AM, james toy <nil@opensesame.st> wrote:
>> Hello Hackers,
>>
>> =A0 =A0I am working on learning to write FreeBSD drivers; however, I hav=
e
>> some practice writing IOKit drivers for MacOSX (they are entirely
>> different I know!). =A0The code I am working with can be found here:
>>
>> http://pastebin.com/m2bbb393c
>>
>> and I am getting the error:
>>
>> dontpanic# kldload ./hello.ko
>> kldload: can't load ./hello.ko: Exec format error
>>
>> dmesg reads:
>>
>> dontpanic# kldload ./hello.ko
>> kldload: can't load ./hello.ko: Exec format error
>>
>> and finally uname -a:
>>
>> FreeBSD dontpanic.union.edu 9.0-CURRENT FreeBSD 9.0-CURRENT #1
>> r198859: Wed Feb 10 09:59:54 EST 2010
>> james@dontpanic.union.edu:/usr/obj/usr/src_klog/sys/DONTPANIC =A0amd64
>>
>> any information pointing me to being able to load this driver would be
>> greatly appreciated.
>>
>> respectfully,
>>
>> james toy
>
> I just built your code on my FreeBSD 8 box and it compiles and loads
> fine. How are you compiling your code? I used this makefile
> http://pastebin.com/f3ab71917 and all I typed was this:
>
> make
> sudo make install
> sudo make load
>
> and I get the "hello, fail" message, and then I typed
> sudo make unload
>
> and I got the "unload fail" message.
>
> Andrew
>

Andrey was correct, param.h and kern.osreldate were not the same.

thanks very much for the prompt responses.

=3Djt