Assertion `pt->down_this_block > 0' failed.

I'm running nmap-3.50, built by hand, on several Compaqs running RedHat
AS2.1. I'm scanning large numbers of systems looking for several ports. I'm
running it in the form:

nmap --randomize_hosts -n -iL file_of subnets -sU -sS -p 135,139,445 -oG -

What often happens is I get the following assertion failure:

nmap: targets.cc:196: int hostupdate (Target **, Target *, int, int, int,
timeout_info *, timeval *, timeval *, pingtune *, tcpqueryinfo *, pingstyle):
Assertion `pt->down_this_block > 0' failed.

Apparently the host number is losing synchronization with the range of current
hosts. What can I do about this problem?

Thanks,
Beirne

-- 
Beirne "Bern" Konarski  
beirne_at_neo.rr.com	"Untouched by Scandal"
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