[Discuss-gnuradio] qa_rational_resampler Test is non-deterministic

[Tommy Tracy II]

Dear Gnuradio,

I was running the build test script, and got my usual 18 failed tests, but one failed some of the time, and passed other times. I'm investigating what could cause this, but wanted to ask if anyone else had seen this before.

To reproduce, run 'ctest -R qa_rational_resampler' several times.

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# ctest -R qa_rational_resampler

Test project /src/old_gnuradio/gnuradio/build

    Start 73: qa_rational_resampler

1/2 Test #73: qa_rational_resampler ............   Passed    0.57 sec

    Start 99: qa_rational_resampler

2/2 Test #99: qa_rational_resampler ............***Failed    0.59 sec

50% tests passed, 1 tests failed out of 2

Total Test time (real) =   1.27 sec

The following tests FAILED:

99 - qa_rational_resampler (Failed)

Errors while running CTest

# ctest -R qa_rational_resampler

Test project /src/old_gnuradio/gnuradio/build

    Start 73: qa_rational_resampler

1/2 Test #73: qa_rational_resampler ............   Passed    0.57 sec

    Start 99: qa_rational_resampler

2/2 Test #99: qa_rational_resampler ............   Passed    0.67 sec

100% tests passed, 0 tests failed out of 2

Total Test time (real) =   1.35 sec

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I wanted to get more information, so I ran 'ctest -VV -R qa_rational_resampler', but it always fails with the very verbose flag.

# ctest -VV -R qa_rational_resampler

UpdateCTestConfiguration  from :/src/old_gnuradio/gnuradio/build/DartConfiguration.tcl

UpdateCTestConfiguration  from :/src/old_gnuradio/gnuradio/build/DartConfiguration.tcl

Test project /src/old_gnuradio/gnuradio/build

Constructing a list of tests

Done constructing a list of tests

Checking test dependency graph...

Checking test dependency graph end

test 73

    Start 73: qa_rational_resampler

73: Test command: /bin/sh "/src/old_gnuradio/gnuradio/build/gnuradio-core/src/python/gnuradio/gr/qa_rational_resampler_test.sh"

73: Test timeout computed to be: 9.99988e+06

1/2 Test #73: qa_rational_resampler ............   Passed    0.85 sec

test 99

    Start 99: qa_rational_resampler

99: Test command: /bin/sh "/src/old_gnuradio/gnuradio/build/gr-filter/python/qa_rational_resampler_test.sh"

99: Test timeout computed to be: 9.99988e+06

99: /src/old_gnuradio/gnuradio/build/gr-filter/python/qa_rational_resampler_test.sh: line 7: 11953 Segmentation fault      /usr/bin/python -B /src/old_gnuradio/gnuradio/gr-filter/python/qa_rational_resampler.py

2/2 Test #99: qa_rational_resampler ............***Failed    0.61 sec

The following tests passed:

qa_rational_resampler

50% tests passed, 1 tests failed out of 2

Total Test time (real) =   1.81 sec

The following tests FAILED:

99 - qa_rational_resampler (Failed)

Errors while running CTest

                   Sincerely,

          Tommy James Tracy II

          PhD Student

High Performance Low Power Lab 

           University of Virginia

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