Attention is currently required from: neels, laforge, pespin, fixeria.

fixeria uploaded patch set #4 to this change.

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fix inp_sig_cb(): dispatch TS_EV_OML_DOWN to all transceivers

When running a multi-trx setup, upon stopping osmo-bts one can see:

  DCHAN ERROR lchan_fsm.c:80 lchan(0-1-7-TCH_F-0)[0x612000010120]{UNUSED}:
              (type=NONE) lchan allocation failed in state UNUSED: LCHAN_EV_TS_ERROR
  DCHAN ERROR lchan_fsm.c:144 lchan(0-1-7-TCH_F-0)[0x612000010120]{UNUSED}:
              (type=NONE) lchan activation failed
              (lchan allocation failed in state UNUSED: LCHAN_EV_TS_ERROR)

These messages show up when the following conditions are met:

  * BTS model speaks A-bis over IP (ip.access, e.g. nanoBTS), and
  * BTS has more than one transceiver configured.

The problem is that unlike traditional E1 based BTS models, ip.access
ones have a single global A-bis/OML link for all transceivers.  Thus
when it goes down, in inp_sig_cb() we need to notify all timeslots
*of all TRXes*, not just TRX0.

Change-Id: I3dc657ac5a2c5334747bd4f4db1a658acb323942
Fixes: OS#5479
---
M src/osmo-bsc/osmo_bsc_main.c
1 file changed, 6 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/52/16352/4

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