amigappc kernel panic

Hi,

I'm currently trying to fix amigappc for 6.0. It booted multiuser nearly
a year ago, but I didn't had the time to look after it in the last
months. :|

A recent kernel panicked in cpu_uarea_alloc(), which is a new since then.
Any idea what might be missing here?

NetBSD 5.99.64 (TEST) #0: Sun Feb  5 21:48:17 CET 2012
        frank <at> albireo.wendik.de:/home/frank/netbsd/current/src/objamippc/sys/arch/amigappc/compile/TEST
Model: Amiga 3000 [PowerUP] (604e v2.4 200 MHz, busclk 66 MHz)
total memory = 127 MB                                         
avail memory = 121 MB
panic: cpu_uarea_alloc: uvm_pglistalloc failed: 12
Stopped in pid 0.1 (system) at  netbsd:cpu_Debugger+0x10:       lwz     r0, 0x14
(r1)                                                                           
db> bt
0x082a6c20: at vpanic+0x21c
0x082a6c50: at panic+0x4c  
0x082a6c90: at cpu_uarea_alloc+0x8c
0x082a6cc0: at uarea_system_poolpage_alloc+0x20
0x082a6cd0: at pool_grow+0x6c                  
0x082a6d10: at pool_get+0xa8 
0x082a6d50: at pool_cache_get_slow+0x214
0x082a6da0: at pool_cache_get_paddr+0x290
0x082a6df0: at uvm_uarea_system_alloc+0x1c
0x082a6e00: at kthread_create+0x68        
0x082a6e60: at create_idle_lwp+0x50
0x082a6e90: at mi_cpu_attach+0xc4