[OLSR-users] segmentation fault when there are no neighbors

[Thomas Lopatic]

Robert,

Thanks for your quick response. The dot_draw plugin is enabled in the 
configuration file /etc/olsrd.conf by means of something like the 
following lines:

LoadPlugin "olsrd_dot_draw.so.0.3"
{
   [...]
}

Simply remove or comment out these lines, then restart olsrd and see 
whether it still crashes. If it doesn't, then we know that it IS the 
dot_draw plugin.

Now, whether olsrd crashes or not, put the lines back in and let's see 
where exactly the crash happens. This can be done as follows:

* Go into the "olsrd-current" directory.

* Say "make OS=linux uberclean" to remove the current build.

* Say "make OS=linux" to rebuild olsrd.

* DO NOT say "make install" as this will remove the strip information 
from olsrd.

* Say "ulimit -c unlimited" so that olsrd will dump core once it crashes.

* Say "./olsrd -d 9" to run the olsrd binary that we have just compiled 
from the current directory (without installing it) and wait for olsrd to 
crash.

* Send me "./olsrd" and the resulting "./core" file. I'll then be able 
to find out where the crash happens.

You have not only used "make install" but also "make install_libs" when 
installing olsrd, haven't you? Otherwise you'd possibly end up using the 
latest version of olsrd with older plugins (libs), which may make olsrd 
crash.

-Thomas