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Bug #5131
closedCall setup failing on 3rd SETUP
Status:
Resolved
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
04/26/2021
Due date:
% Done:
0%
Spec Reference:
Description
Attempting to establish a 3rd simultaneous call causes all calls to drop no further calls can be established until the MGW is restarted.
100% reproducible.
This is the oddity in the osmo-mgw logs
Apr 26 00:34:50 test2-bsc osmo-mgw[2313]: DLMGCP mgcp_protocol.c:751 endpoint:ds/e1-0/s-2/su16-6@mgw CRCX: creating new connection ... Apr 26 00:34:50 test2-bsc osmo-mgw[2313]: DLINP input/e1d.c:350 E1L(0) Line update 0 0=E1D(0:0) 32 Apr 26 00:34:50 test2-bsc osmo-mgw[2313]: DLINP input/e1d.c:450 E1TS(0:3) Could not open timeslot 3 Apr 26 00:34:50 test2-bsc osmo-mgw[2313]: DE1 mgcp_e1.c:400 trunk:0 failed to update E1 timeslot 2.
After this, restart is required.
At the same time. osmo-e1d logs:
20210426003450977 DE1D ERROR (I0:L0:T3) Timeslot already open, rejecting re-open without F_FORCE (ctl.c:380) 20210426003450979 DE1D ERROR (I0:L0:T3) dead socket during write: Broken pipe (mux_demux.c:298)
Attached logs and pcaps did not necessarily start and end at the same time, but all timestamps should match.
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