[Xorp-users] How to debug xorp_fea ?

[Bruce Simpson]

Hi,

I posted a script on this list a few weeks ago which should help, should 
be in the archives.

Tom Gibson wrote:
>
> Hi all,
>
> I was hoping someone could lend advice on how to go about figuring out 
> what’s going wrong inside xorp_fea. I’m getting pretty tired trying to 
> hack my way through a setup to debug it. For some reason when I try to 
> use Click, things hang somewhere, but I don’t know where. If I try and 
> use ddd / gdb on xorp_fea, xorp_rtrmgr kills it before I can figure 
> things out.
>

The key thing is to attach GDB on the FEA, set the breakpoint/catchpoint 
you need, and immediately continue, as there are keepalive timers which 
the Router Manager will use to determine if the FEA has died or not.

cheers
BMS