Re: Wackamole-users] Re: Segfault when running wackamole in foreground

On Thursday, Oct 2, 2003, at 19:15 US/Eastern, Matthias Weidle wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On Sat, Sep 06, 2003 at 11:54:25AM -0400, Ryan Caudy wrote:
> > > Hi!  I don't know about why Wackamole is segfaulting, although I'll 
> > > look
> > > into it if it continues as a problem for you.  My concern is that 
> > > your
> > > spread.conf seems incorrect, which might cause wackamole to behave 
> > > in an
> > > odd manner.
> >
> > Thanks for pointing that out-- I was seeing some odd ICMP redirects 
> > which
> > have now stopped happening.  Will check out the "mature time" 
> > discussion
> > earlier, but I think I know what you're getting at.
> >
> > Unfortunately it didn't change the segfaulting behaviour when running 
> > in
> > the foreground; I will try it on OpenBSD later to see if that behaves 
> > the
> > same way.  It's only a problem in that: 1) it makes me worry that
> > wackamole may keel over while managing our routers' IP addresses, 
> > though
> > presumably this list's experience can tell me otherwise, and 2) I 
> > can't
> > supervise the daemon the way I'd like.  The main thing is that it 
> > works,
> > but if you have the time to look into it that would be great :)
>
>
> i dunno if it is breaking other things but i have experienced the very 
> same problem with segfaulting and i was able to fix that after 
> compiling wackamole without thread support. i suppose the 
> glibc/threadlib is to blame in that case ...

I believe that is a stack space issue.  The release version of 
wackamole requires and inordinately large stack size.  While that might 
be common in unithread applications, it isn't in multithreaded 
applications.  I think the CVS version has this problem fixed -- I'd 
love to know if people still see the same problems with CVS HEAD.

// Theo Schlossnagle
// Principal Engineer -- http://www.omniti.com/~jesus/
// Postal Engine -- http://www.postalengine.com/
// Ecelerity: fastest MTA on earth