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Ciaby ciaby at autistici.orgOn 11/10/2014 03:57 PM, Holger Hans Peter Freyther wrote: [...] > a.) The lchan has been re-used and "old_lchan" is already for someone > new. > b.) We start the handover too early. E.g. while still trying to > determine the subscriber? > > diff --git a/openbsc/src/libbsc/handover_logic.c b/openbsc/src/libbsc/handover_logic.c > index 22f9883..d7e1a16 100644 > --- a/openbsc/src/libbsc/handover_logic.c > +++ b/openbsc/src/libbsc/handover_logic.c > @@ -93,6 +93,9 @@ int bsc_handover_start(struct gsm_lchan *old_lchan, struct gsm_bts *bts) > if (bsc_ho_by_old_lchan(old_lchan)) > return -EBUSY; > > + if (!old_lchan->conn->subscr) > + return -EBUSY; > + > DEBUGP(DHO, "(old_lchan on BTS %u, new BTS %u)\n", > old_lchan->ts->trx->bts->nr, bts->nr); > > > this would be a band-aid and it would be interesting if you still see > the crash. Thanks! I'll apply it to the current version we use, deploy it and see if we still see the same issue. Cheers Ciaby