pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/41785?usp=email )
Change subject: bts: Fix sporafic failure in TC_rsl_ms_pwr_ctrl
......................................................................
bts: Fix sporafic failure in TC_rsl_ms_pwr_ctrl
Fix following sporadic race condition:
TTCN-MS IUTS-BTS TTCN-BSC
| |<----CHAN_ACT------|
|<--SACCH(A)-- | |
| |<--MS_PWR_CTRL(B)- |
|<--SACCH(B)---|
Change-Id: I088b58bf76765c8a5bd167590c5afc5055fbdbf8
---
M bts/BTS_Tests.ttcn
1 file changed, 12 insertions(+), 3 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/85/41785/1
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 26fe18d..b2d7252 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -3834,6 +3834,7 @@
private function f_tc_rsl_ms_pwr_ctrl(charstring id) runs on ConnHdlr {
var SacchL1Header l1h;
var uint5_t power_level := 0;
+ var boolean first_after_wait := true;
f_l1_tune(L1CTL);
RSL.clear;
@@ -3849,10 +3850,18 @@
alt {
[] as_l1_sacch_l1h(l1h, do_apply := false) {
if (l1h.ms_power_lvl != power_level) {
- setverdict(fail, "Power level := ", l1h.ms_power_lvl,
"does not ",
- "match the signaled (RSL) power level := ",
power_level);
- Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
+ if (first_after_wait) {
+ /* It may happen that BTS transmits SACCH
before it receives our RSL MS POWER CONTROL: */
+ log("Power level := ", l1h.ms_power_lvl, " does
not ",
+ "match the signaled (RSL) power level := ",
power_level);
+ first_after_wait := false;
+ repeat;
+ }
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
+ log2str("Power level := ",
l1h.ms_power_lvl, " does not ",
+ "match the signaled
(RSL) power level := ", power_level));
}
+ first_after_wait := true;
/* Signal a new power level via RSL for the next turn. */
if (power_level < 31) {
--
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Gerrit-MessageType: newchange
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I088b58bf76765c8a5bd167590c5afc5055fbdbf8
Gerrit-Change-Number: 41785
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
