[mpls-linux-devel] MPLS Linux Null Driver on Quagga

[Rodrigo D. <ro...@tr...>]

Hi James and all!

I've been messing with mpls on archlinux, like compiling the kernel from git
and so on. I already made all MPLS Labs and even integrated, using static
routes, using Cisco/GNS3.

Now it's time to try something harder, like LDP ;D

I followed the instructions from last month posts' and I successfully
compiled quagga from git too. But I stopped in the fact that I can only
compile using null driver.

Question 1: Using null driver LDP does nothing, right?

Even with null driver some simple tasks in zebra, like doing a 'no shutdown'
in a interface hangs zebra, and I can only kill with 'pkill -9 zebra'.

I tried to search and figure what is happening, but the code is very messy
and I can't even see where to start.

Later I tried to compile without null driver, and I compiled successfully.
The 'no shutdown' does not hang zebra anymore, but it hangs randomly.
(I can hang  changing settings using ifconfig from another vty  too).

Question 2: So.... Do you have any hints or advices to where can I look
first?

I debugged a lot and backtraces don't give me nothing useful (only
suspicions on something related to netlink), and running zebra without
deamon (-b) doesn't helped too.

Question 2.1: Do you have some hint where I can put some breakpoints to try?

Any help is apreciated.
;)