Re: NSE: odd output, testing, etc

[David Fifield <david () bamsoftware com>]

On Mon, Dec 29, 2008 at 03:51:00AM +0000, Brandon Enright wrote:
> > On Sun, Dec 28, 2008 at 6:34 PM, David Fifield
> > <david () bamsoftware com> wrote:
> > > So it sounds like the scripts are running and blocking fine. The
> > > only problem is that they tend to time out before they get a chance
> > > to do anything. Brandon said that after one round of scanning with
> > > more than 300 script threads running, in the next round NSE locks
> > > immediately. Could something about timing out scripts be corrupting
> > > the Lua state? The problem goes away when r11122 is reverted. That
> > > was the change that made use of a persistent Lua state.
> >
> > I need more information than NSE locking up on the second scan to
> > determine the cause. As far as I know Brandon hasn't had this problem
> > anymore after I corrected the threads improperly finishing because of
> > time outs.
>
> Reverting r11122 kept the problem from propagating to later NSE scans
> but as Patrick mentioned, properly handling thread timeouts completely
> eliminated the problem.

Good news, and well done Patrick. What revision fixed the timeout
problem? Was it r11499? The only other thing I can think of is
http://seclists.org/nmap-dev/2008/q4/0727.html, but that wasn't
committed.

David Fifield

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