find_service.nes hanging on 2.2.3 linux

Hey all..

I've been digging for this in the archives, but I can't find anything
current and relevent. Feel free to point me at the answer if this has
come up before..

I'm scanning multiple /24s, and every now and then, on fairly
populated networks, nessus will hang on one or more hosts. WHICH hosts
seem to change, and I haven't gotten it to happen on the same host
twice, even though I've reproduced the problem several times by
scanning dense networks.

Each time it happens, a ps shows two processes for one or more hosts,
several hours after all the other hosts are apparently done. One is
always find_service.nes, and the second one varies. Through
experimentation, I've learned that I can kill -9 the process for
find_service.nes and that host will take off, run through the other
plugins, and finish happily as if nothing happened.

I don't see anything in the dump or message files that would indicate
a problem. I tried changing the timeout for the plugin, which didn't
help, nor did reducing the scans to 10 tests and 15 hosts at a time.

For a short-term fix, I've disabled that plugin, but if I could figure
out why it's hanging in the first place, I'd feel better about it.

Any ideas would be welcomed.

Thanks!
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