On Sat, Aug 27, 2011 at 01:54:45PM +0200, Harald Welte wrote: > Hi Gus, > > On Fri, Aug 26, 2011 at 04:03:52PM -0700, Gus Bourg wrote: > > Thanks for fixing this! I can confirm that it compiles now - and my BTS > > comes up with trunk. However, when I configure two BTS's, I get a core dump > > (for real this time : -) > > feel free to debug this further by yourself. It's a bit hard without > access to the equipment. For some reason, ts->lapd is NULL, i.e. there > was no LAPD instance allocated for this timeslot. > > The allocation happens at line 434 of libosmo-abis/src/input/dahdi.c > > So the first step would be to add some LOGP messages about which LAPD > instances are allocated (or released). This can be used to see if the > expected LAPD instances (one on each signalling timeslot) are created > or not.
I introduced refcounting in the ->line_update() update path in libosmo-abis, which calls the setup function only once (I needed this to avoid binding the A-bis over IP socket twice). Before, the line_update() function was called once per BTS. I'm traveling back home, so I didn't have too much time to look in depth, but my guess is that this can be related to the problem that Gus is reporting.
