Unit test pucch_test fails with SIGBUS on RPi4

[JamesHagerman]

Issue Description

Running make test or ctest -R pucch_test on a Raspberry Pi 4 shows 1 test failing out of 2.

Setup Details

The RPi4 is running a 2020-02-13 version of Raspbian and a freshly compiled version of srsLTE from current master (d045213fb9cbf98c83c06d7c17197a9dcbfddacf)

Expected Behavior

2 of 2 passing tests

Actual Behaviour

ctest -R pucch_test
Test project /home/pi/dev/srsLTE/build
    Start 218: pucch_test
1/2 Test #218: pucch_test .......................Bus error***Exception:   0.04 sec
    Start 219: pucch_test_uci_cqi_decoder
2/2 Test #219: pucch_test_uci_cqi_decoder .......   Passed    0.97 sec

50% tests passed, 1 tests failed out of 2

Total Test time (real) =   1.04 sec

The following tests FAILED:
	218 - pucch_test (Bus error)
Errors while running CTest

Additional Information

Running the test in gdb using gdb ./lib/src/phy/phch/test/pucch_test and run -v shows verbose logs of the test running and ends with this output:

[...]
[INFO]: format 5, n_pucch: 101, ncs: 3, d: 3, t_exec=24 us
[INFO]: format 5, n_pucch: 1, ncs: 6, d: 3, t_exec=25 us
[INFO]: format 5, n_pucch: 51, ncs: 6, d: 3, t_exec=25 us
[INFO]: format 5, n_pucch: 101, ncs: 6, d: 3, t_exec=25 us

Program received signal SIGBUS, Bus error.
0x0002a5d8 in srslte_scrambling_b_offset ()

[andrepuschmann]

Thanks James for flagging that. I think the issue is fixed in the new upcoming release. We run RPi4 tests in our CI now nightly. Please reopen if its still failing for you.