with the B210 and 2 RF ports, i.e. MIMO mode, we have stopped the
Rx stream after changing the rx_samp_rate but didn't start it again.
Either the issue doesn't exist in SISO mode or we never saw it but for MIMO
it can be reproduced easily with rate changes during streaming, i.e.:
$ ./lib/src/radio/test/benchmark_radio -p 2 -t 10 -x -y -s 23.04e6
Instantiating objects and allocating memory...
Initialising instances...
Opening 2 channels in RF device= with args=default
[INFO] [UHD] linux; GNU C++ version 9.2.1 20200304; Boost_107100; UHD_3.15.0.0-2build5
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Opening USRP channels=2, args: type=b200,master_clock_rate=23.04e6
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Asking for clock rate 23.040000 MHz...
[INFO] [B200] Actually got clock rate 23.040000 MHz.
[INFO] [MULTI_USRP] 1) catch time transition at pps edge
[INFO] [MULTI_USRP] 2) set times next pps (synchronously)
Warning: TX gain was not set. Using open-loop power control (not working properly)
Setting manual TX/RX offset to 0 samples
Start capturing 10000 frames of 23040 samples...
Changing sampling rate to 23.04 Msamps/s
Setting manual TX/RX offset to 0 samples
Changing sampling rate to 1.92 Msamps/s
Setting manual TX/RX offset to 0 samples
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1211: Error timed out while receiving samples from UHD.
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1211: Error timed out while receiving samples from UHD.
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1211: Error timed out while receiving samples from UHD.
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1211: Error timed out while receiving samples from UHD.
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1211: Error timed out while receiving samples from UHD.
This commit addresses an issue where if a UE requests a release for
circuit switched fallback, but the sib7 carrier freqs info list is not
configured, the eNodeB would crash with a segfault due to attempting
to access an element from an empty list. This commit adds explicit
checking to handle the empty list case. If the list is empty, no
redirect carrier info is added to the connection release message and
the UE must scan for the fallback network itself.
it fixes#1623.
this happens more often with MIMO since lates are more likely here.
after a late, the Rx stream must not be stopped on the B2xx either.
<log>
RF status: O=3, U=0, L=1
/home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1209: Error timed out while receiving samples from UHD.
stop rx stream
./home/anpu/src/srsLTE/lib/src/phy/rf/rf_uhd_imp.cc.1209: Error timed out while receiving samples from UHD.
stop rx stream
/home/anpu/src/srsLTE/lib/src/phy/ue/ue_sync.c.775: Error receiving samples
/home/anpu/src/srsLTE/lib/src/phy/ue/ue_cell_search.c.312: Error calling srslte_ue_sync_work()
/home/anpu/src/srsLTE/lib/src/phy/ue/ue_cell_search.c.272: Error searching cell
</log>
before the BSR was extracted but the actual index (between 0 and 63)
was not stored but directly converted into bytes.
for log parsing and debugging it is easier to follow the index
value. this patch therefore adds both values to the log message
and extends the API accordingly.
commit #51c6e8d1 introduced a regression in which the 2nd antenna
port was never considered. All MIMO ZMQ based tests therefore failed.
this fixes#1608
Ismael Gomez
Xavier Arteaga
Francisco Paisana
Andre Puschmann
Matt Johnson