NetBSD 5.1 (RC3) issue?

[John Klos <john%ziaspace.com@localhost>]

Hi, all,

I just upgraded to the latest netbsd-5 compiled 7-July-2010, and my 
otherwise completely stable while compiling for months machine just 
paniced after two and a half days:

panic: usrptmap space leakage
Begin traceback...
panic: usrptmap space leakage
Stack traceback :
         Process is executing in user space.
End traceback...

dumping to dev 20,1 offset 316048
dump succeeded

However, savecore didn't find a core dump. Any ideas or suggestions about 
what this might be? Is savecore problematic for anyone else?

Thanks,
John