Change in osmo-ttcn3-hacks[master]: pcu: f_TC_mo_ping_pong_2phase_access(): Fix race condition

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pespin gerrit-no-reply at lists.osmocom.org
Wed Mar 3 14:38:54 UTC 2021


pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/23213 )

Change subject: pcu: f_TC_mo_ping_pong_2phase_access(): Fix race condition
......................................................................

pcu: f_TC_mo_ping_pong_2phase_access(): Fix race condition

Sometimes the DL data may arrive too late to PCU and it may be requested
to tx before it arrives, hence the PCU will in that case schedule and
transmit a UL ACK/NACK instead of the expected DL data.

Change-Id: Iaee546e2021e86ca6da19ab73cc8d283a827a665
---
M pcu/PCU_Tests.ttcn
1 file changed, 2 insertions(+), 0 deletions(-)

Approvals:
  fixeria: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index cde5396..5d7a47a 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -1693,6 +1693,8 @@
 
 	/* Now SGSN sends some DL data, PCU will page on PACCH */
 	BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
+	/* Sleep a bit to make sure PCU received the DL data and hence it will be prioritized by scheduler: */
+	f_sleep(0.5);
 	f_ms_rx_pkt_ass_pacch(ms, sched_fn, tr_RLCMAC_DL_PACKET_ASS);
 	/* DL Ass sets poll+rrbp requesting PACKET CONTROL ACK */
 	f_ms_tx_ul_block(ms, ts_RLCMAC_CTRL_ACK(ms.tlli), sched_fn);

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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Iaee546e2021e86ca6da19ab73cc8d283a827a665
Gerrit-Change-Number: 23213
Gerrit-PatchSet: 2
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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