Panic during kernel booting on HP Proliant DL180G6 and latest STABLE

[Bartosz Stec]

Hi list!

I moved my 8-STABLE system from cheap AMD64 machine to Proliant DL180G6 
(full ZFS send -> receive) yesterday.
Operation was succesfull, system booted and everything worked fine. 
Still, I wanted to perform full world + kernel rebuild with updated 
sources and CPUTYPE (core2 instead of athlon64) and removed unused NIC 
drivers from kernel.

New kernel panicked during boot. I rebuilt kernel again, without any 
CPUTYPE in make.conf, but panic was still there. Old kernel (built at 
8.04.2011) is booting fine.
First panic line says:

    panic: m_getzone: m_getjcl: invalid cluster type.


I made a por quality photo of screen with stack backtrace and it's 
available here: http://www.picamatic.com/view/7544359_IMAG0029/

Now the funny thing:

Igb driver is compiled into the kernel. If I add igb driver to 
loader.conf kernel complains of course:

    module_register: module pci/igb already exists!
    Module pci/igb failed to register: 17


but there's no panic!

When I remove 'if_igb_load="YES"' from loader.conf, I experience panic 
visible above.

Kernel config: http://pastebin.com/G7K0vfuJ


-- 
Bartosz Stec