<p>Pau Espin Pedrol <strong>merged</strong> this change.</p><p><a href="https://gerrit.osmocom.org/11993">View Change</a></p><div style="white-space:pre-wrap">Approvals:
Neels Hofmeyr: Looks good to me, approved
Jenkins Builder: Verified
</div><pre style="font-family: monospace,monospace; white-space: pre-wrap;">bsc: lchan_rtp_fsm: Avoid duplicate LCHAN_EV_RTP_RELEASED event<br><br>When lchan_rtp_fsm instance is allcoated with<br>osmo_fsm_inst_alloc_child(..., LCHAN_EV_RTP_RELEASED) we already let fsm<br>code to take care of sending that event ito the parent when the fsm is<br>terminated (but only if freeing cause is not OSMO_FSM_TERM_PARENT).<br>The lchan_rtp_fsm cleanup() callback, which is called immediatelly before<br>sending to the parent the event defined during osmo_gsm_install_alloc_child(),<br>currently also sends that same event, which ends up in a duplicated<br>event being sent as shown in log files below.<br>Let's only send the event in cleanup() if we are in the<br>cause=OSMO_FSM_TERM_PARENT scenario, to make sure parent always receives the<br>event, but only once.<br><br>20181128193707326 DAS osmo-bsc/assignment_fsm.c:127 assignment(conn4_0-0-6-TCH_F_PDCHasPDCH-0)[0x6120000024a0]{WAIT_LCHAN_ACTIVE}: (bts=0,trx=0,ts=6,ss=0) Assignment failed<br>20181128193707326 DAS osmo-bsc/assignment_fsm.c:128 assignment(conn4_0-0-6-TCH_F_PDCHasPDCH-0)[0x6120000024a0]{WAIT_LCHAN_ACTIVE}: Terminating (cause = OSMO_FSM_TERM_ERROR)<br>20181128193707326 DAS osmo-bsc/assignment_fsm.c:128 assignment(conn4_0-0-6-TCH_F_PDCHasPDCH-0)[0x6120000024a0]{WAIT_LCHAN_ACTIVE}: Removing from parent SUBSCR_CONN(conn4)[0x612000002920]<br>20181128193707326 DCHAN osmo-bsc/lchan_fsm.c:1333 lchan_rtp(0-0-6-TCH_F_PDCH-0)[0x612000002320]{WAIT_MGW_ENDPOINT_AVAILABLE}: Received Event LCHAN_RTP_EV_ROLLBACK<br>20181128193707326 DCHAN osmo-bsc/lchan_rtp_fsm.c:193 lchan_rtp(0-0-6-TCH_F_PDCH-0)[0x612000002320]{WAIT_MGW_ENDPOINT_AVAILABLE}: Terminating (cause = OSMO_FSM_TERM_REQUEST)<br>20181128193707326 DCHAN osmo-bsc/lchan_rtp_fsm.c:193 lchan_rtp(0-0-6-TCH_F_PDCH-0)[0x612000002320]{WAIT_MGW_ENDPOINT_AVAILABLE}: Removing from parent lchan(0-0-6-TCH_F_PDCH-0)[0x6120000039a0]<br>20181128193707326 DRSL osmo-bsc/mgw_endpoint_fsm.c:441 mgw-endpoint(conn4)[0x6120000021a0]{WAIT_MGW_RESPONSE}: (rtpbridge/*@mgw) CI[0] to-BTS: DLCX :0: notify=NULL<br>20181128193707326 DRSL osmo-bsc/mgw_endpoint_fsm.c:482 mgw-endpoint(conn4)[0x6120000021a0]{WAIT_MGW_RESPONSE}: (rtpbridge/*@mgw) CI[0] to-BTS: DLCX :0: Scheduling<br>20181128193707326 DCHAN osmo-bsc/lchan_rtp_fsm.c:742 lchan(0-0-6-TCH_F_PDCH-0)[0x6120000039a0]{WAIT_TS_READY}: Received Event LCHAN_EV_RTP_RELEASED<br>20181128193707326 DCHAN osmo-bsc/lchan_rtp_fsm.c:193 lchan_rtp(0-0-6-TCH_F_PDCH-0)[0x612000002320]{WAIT_MGW_ENDPOINT_AVAILABLE}: Freeing instance<br>20181128193707327 DCHAN fsm.c:381 lchan_rtp(0-0-6-TCH_F_PDCH-0)[0x612000002320]{WAIT_MGW_ENDPOINT_AVAILABLE}: Deallocated<br>20181128193707327 DCHAN osmo-bsc/lchan_rtp_fsm.c:193 lchan(0-0-6-TCH_F_PDCH-0)[0x6120000039a0]{WAIT_TS_READY}: Received Event LCHAN_EV_RTP_RELEASED<br>20181128193707330 DCHAN osmo-bsc/lchan_fsm.c:1347 lchan(0-0-6-TCH_F_PDCH-0)[0x6120000039a0]{WAIT_TS_READY}: transition to state WAIT_RLL_RTP_RELEASED not permitted!<br>20181128193707330 DAS osmo-bsc/assignment_fsm.c:128 assignment(conn4_0-0-6-TCH_F_PDCHasPDCH-0)[0x6120000024a0]{WAIT_LCHAN_ACTIVE}: Freeing instance<br>20181128193707330 DAS fsm.c:381 assignment(conn4_0-0-6-TCH_F_PDCHasPDCH-0)[0x6120000024a0]{WAIT_LCHAN_ACTIVE}: Deallocated<br><br>Change-Id: I3e95a21e5a5ec6c35b1ab20b7a642fd7eb81e556<br>---<br>M src/osmo-bsc/lchan_rtp_fsm.c<br>1 file changed, 5 insertions(+), 1 deletion(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/osmo-bsc/lchan_rtp_fsm.c b/src/osmo-bsc/lchan_rtp_fsm.c</span><br><span>index aaba563..6ab3da4 100644</span><br><span>--- a/src/osmo-bsc/lchan_rtp_fsm.c</span><br><span>+++ b/src/osmo-bsc/lchan_rtp_fsm.c</span><br><span>@@ -738,7 +738,11 @@</span><br><span> lchan->mgw_endpoint_ci_bts = NULL;</span><br><span> }</span><br><span> lchan->fi_rtp = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- if (lchan->fi)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* In all other cause, FSM already takes care of sending the event we</span><br><span style="color: hsl(120, 100%, 40%);">+ * configured at osmo_fsm_inst_alloc_child() time immediately after</span><br><span style="color: hsl(120, 100%, 40%);">+ * returning here. */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (lchan->fi && cause == OSMO_FSM_TERM_PARENT)</span><br><span> osmo_fsm_inst_dispatch(lchan->fi, LCHAN_EV_RTP_RELEASED, 0);</span><br><span> }</span><br><span> </span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/11993">change 11993</a>. 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<div style="display:none"> Gerrit-Project: osmo-bsc </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: merged </div>
<div style="display:none"> Gerrit-Change-Id: I3e95a21e5a5ec6c35b1ab20b7a642fd7eb81e556 </div>
<div style="display:none"> Gerrit-Change-Number: 11993 </div>
<div style="display:none"> Gerrit-PatchSet: 6 </div>
<div style="display:none"> Gerrit-Owner: Pau Espin Pedrol <pespin@sysmocom.de> </div>
<div style="display:none"> Gerrit-Reviewer: Jenkins Builder (1000002) </div>
<div style="display:none"> Gerrit-Reviewer: Neels Hofmeyr <nhofmeyr@sysmocom.de> </div>
<div style="display:none"> Gerrit-Reviewer: Pau Espin Pedrol <pespin@sysmocom.de> </div>