Re: many scripts with output cause abort

[Brandon Enright <bmenrigh () ucsd edu>]

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On Mon, 16 Mar 2009 17:46:10 -0600
Patrick Donnelly <batrick.donnelly () gmail com> wrote:

> Hello list,
>
> I've run into a problem that causes an ABORT for all the branches I'm
> doing performance testing on for NSE. The problem appears to be
> unrelated to NSE except having huge numbers of scripts with output
> seems to cause it. Sometime while the output table is being printed
> the code will mess the heap up. I've attached example output and the
> shell script that creates the scripts.
>
> This code should reproduce the issue:
>
> batrick:~/nmap/svn/nmap$ rm scripts/*
> batrick:~/nmap/svn/nmap$ sdb_test2.sh scripts
> batrick:~/nmap/svn/nmap$ ./nmap --script-updatedb
>
> Starting Nmap 4.85BETA4 ( http://nmap.org ) at 2009-03-16 02:16 MDT
> NSE script database updated successfully.
> Nmap done: 0 IP addresses (0 hosts up) scanned in 0.13 seconds
> batrick:~/nmap/svn/nmap$ ./nmap --script all localhost
> [...]
>
> I truncated the rest.
>
> Hopefully someone should be able to locate the issue as I am currently
> unable to investigate this.

Patrick,

I haven't seen this but I probably wasn't running enough scripts.

I've noticed that with a large --min-parallelism and a large
- --min-hostgroup NSE seems to overload Nsock and causes Nmap to corrupt
mammary.  David and I looked at it a little but never really pursued it
as a bug.

Brandon

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