Hi Benoit,

On Tue, Dec 07, 2010 at 06:04:18PM +0100, "Benoît Monin" wrote:
> Hi,
> 
> I'm experiencing some sigsegv when running some tests with a 3G modem.
> I have 2 active connections  :
>     - an ethernet link, configured with dhcp. Typical setup is
>         ip = 10.23.218.30
>         mask = 255.255.240.0
>         gw = 10.23.208.1
>     - a 3G modem, configured with ofono. Typical setup is
>         ip = 10.248.160.97
>         mask = 255.255.255.255
>         gw = 0.0.0.0
> 
> The sim card used is configured with a dedicated password authenticated
> APN connected to our internal network through vpn. So both links ends
> up on the same network, with different mask. This is a bogus network
> setup, and the values provided by the gsm operator looks strange but
> connman should not crash.
I agree.


> I'm simulating gsm coverage loss with an antenna attenuator and connman
> crashes when the gsm signal is back or when calling ofono
> activate_context again.
> 
> The decoded backtrace :
> -------- backtrace --------
> [0]: update_order() [connection.c:466]
> [1]: __connman_profile_changed() [profile.c:182]
> [2]: __connman_service_indicate_state() [service.c:3046]
> [3]: set_configuration() [network.c:574]
> [4]: set_connected_fixed() [network.c:591]
> [5]: connman_network_set_connected() [network.c:812]
> [6]: signal_filter() [watch.c:403]
> [7]: message_filter() [watch.c:530]
> [8]: message_dispatch() [mainloop.c:80]
> [9]: main() [main.c:262]
> [10]: _start() [start.S:122]
> ---------------------------
> 
> I can post the full syslog or run some other tests if needed.
The full syslog would be a good start.


> I'll try to reproduce the bug differently, it seems to be related
> to gateway management.
Can you reliably reporduce it ? If so, running connmand through gdb would be
useful as well. The gdb backtraces are usually more useful than our custom
ones.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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