Problems with my Qube 2

Hi everyone
My Qube 2 seems to crash every week or so with no explanation, the 
system is currently sitting at the db prompt, the output of which 
commands would be useful to give an indication of what makes the machine 
fall over?

trace output:
cpu_Debugger+4 (ff00,f9,c6,2000) ra 800f13b4 sz 0
comintr+4d0 (ff00,f9,c6,2000) ra 802c9734 sz 64
cpu_intr+1d0 (ff00,f9,c6,2000) ra 802b3730 sz 64
mips3_KernIntr+90 (0,fe41f,fe3df,0) ra 802ba1c4 sz 128
cpu_idle+28 (0,fe41f,fe3df,0) ra 801f61d8 sz 24
idle_loop+f8 (0,fe41f,fe3df,0) ra 802b3d40 sz 40
mips3_lwp_trampoline+20 (0,fe41f,fe3df,0) ra 0 sz 24
User-level: pid 0.2



Sevan / Venture37