Tightening kernel for Mac Mini G4

[Joe Nosay]

Considering how small the system is, you may want to think about using
the Creative Labs X-Fi USB audio.

On 1/23/14, Alexey Dokuchaev <danfe at freebsd.org> wrote:
> On Thu, Jan 23, 2014 at 04:49:22AM +0000, Alexey Dokuchaev wrote:
>> Great, I've removed entire "Misc" section of the config.  I'm wondering
>> if I can do the same for ADB support?
>
> Apparently, I removed too much: newly built kernel panics on boot
> instantly:
>
>   panic: vm_phys_paddr_to_segfind: paddr 0x1c3d000 is not in any segment
>   cpuid = 0
>   KDB: stack backtrace:
>   0xd0004ab0: at kdb_backtrace+0x4c
>   0xd0004b20: at panic+0x16c
>   0xd0004b80: at vm_phys_add_page+0x12c
>   0xd0004ba0: at vm_page_startup+0x428
>   0xd0004c00: at vm_mem_init+0x24
>   0xd0004c20: at mi_startup+0x13c
>   0xd0003c50: at btext+0xc0
>   KDB: enter: panic
>   [ thread pid 0 tid 0 ]
>   Stopped at	0x282e24:	addi	r0, r0, 0x0
>   db>
>
> Maybe moving "device mem" to /boot/loader.conf was not that good idea? :)
>
> Keyboard is unresponsive at this point (could it be due to missing USB
> stuff
> in kernel?).
>
> What puzzles me more is that unloading the previous kernel and doing 'set
> kernel=kernel.old' before boot also panics (WTF? it booted just fine
> before):
>
>   panic: vm_phys_create_seg: increase VM_PHYSSEG_MAX
>
> Perhaps some modules from /boot/loader.conf confuse GENERIC kernel.  Unless
> I find a way to fix this, I might have to netboot again. :(
>
> ./danfe
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