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Bug #3826

BTS_Tests.TC_pcu_data_req_imm_ass_pch fails since build 404 (17 days ago)

Added by laforge 17 days ago. Updated 10 days ago.

Status:
In Progress
Priority:
Urgent
Assignee:
Category:
PCU Interface
Target version:
-
Start date:
03/07/2019
Due date:
% Done:

0%

Spec Reference:

Related issues

Related to OsmoBTS - Bug #3825: BTS_Tests.TC_pcu_data_req_agch fails since build 404 (17 days ago)In Progress2019-03-07

History

#1 Updated by laforge 17 days ago

  • Related to Bug #3825: BTS_Tests.TC_pcu_data_req_agch fails since build 404 (17 days ago) added

#2 Updated by msuraev 17 days ago

  • Status changed from New to In Progress

Contrary to my initial expectation, it's unrelated to rach11 patch.
Looking at osmo-bts.log:

last known-good build:
pcu_sock.c:480 Data request received: sapi=AGCH arfcn=0 block=0 data=00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 14 15 16

failing build:
pcu_sock.c:480 Data request received: sapi=AGCH arfcn=0 block=0 data=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

It's unclear yet what's causing this 'empty' message or even if it's related to the issue at all.

Related diff:

last known-good build:
DL1C <0006> l1sap.c:623 activate confirm chan_nr=UNKNOWN on TS7 trx=0
failing build:
DL1C <0006> l1sap.c:623 activate confirm chan_nr=PDCH on TS7 trx=0

is caused by https://gerrit.osmocom.org/c/libosmocore/+/12942 and unlikely to be the cause as it's purely cosmetic.

Most likely cause is one of the patches merged to osmo-ttcn3-hacks around Feb. 19 because the issue appeared at the same time for both ttcn3-bts-test-latest and ttcn3-bts-test.

Note to self - handy commands:

Remove first column with timestamp:
cut -d' ' -f2- osmo-bts.log > osmo-bts.log.base

Cleanup logs from random jitter noise:
grep -v 'TRX Clock Ind: elapsed_us' osmo-bts.log.base | grep -v 'Clock indication: fn' | grep -v 'FN timer expire_count' | grep -v 'GSM clock jitter' | grep -v 'FN slower than TRX' > osmo-bts.no-jitter.base

#3 Updated by laforge 10 days ago

Reminder: this is an Urgent issue and it pre-empts any other takss

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