[Dnsmasq-discuss] segfault - Re: No dnsmasq after starting openVPN?!

[Arno Wald]

On 06.06.2010 21:21, Simon Kelley wrote:
> The only problem with this explanation is that the change to
> poll_resolv() happened in 2.52. Do you know what version you were
> running when this last worked?

In the dpkg.logs I found that 2.52-1 came in 2010-01-24. The next 
upgrade was the 2.53 on 2010-06-05. With 2.52 I did not have any problems.

> Please could you try commenting out the call to poll_resolv() at
> netlink.c line 284, and see if that fixes things?

So I did:

       /* Force re-reading resolv file right now, for luck. */
       /*poll_resolv(1, 1, dnsmasq_time()); */

and now dnsmasq does not crash anymore when starting openvpn. (I have 
tried it twice. Before the uncommenting it did crash everytime.)

Do you need more info? E.g. reinstalling the crashing version and doing 
what Jan mentioned:
> Can you try again with gdb typing in:
> bt full
> info frame
> info registers
> disass $pc
> list
>
> Hmmm, and maybe smuggle a "-g3" into the CFLAGS used to compile dnsmasq would be
> nice.

If so I have the question if I am doing it right to run gdb, start 
openvpn and after this type the mentioned commands into gdb? And also: 
how can I set the -g3 option when remaking the deb package?

Greetings,
Arno