Enable s390x Travis CI build; Add coredump analyzer for Travis

[jiridanek]

https://app.travis-ci.com/github/jiridanek/skupper-router/builds/254021857

$ sudo sysctl -w kernel.core_pattern="coredump.%e.%p"
sysctl: permission denied on key "kernel.core_pattern"

Looks like we have to live with the default pattern, which seems to be core.

The working of the coredump analysis can be tested by replacing the CI script with

python3 -c 'import os; import signal; os.kill(os.getpid(), signal.SIGABRT)'

[jiridanek]

60: test_get_image_jpg (system_tests_http2_tls.Http2TestTlsStandaloneRouter) ... skipped 'Python 3.7 or greater, Quart 0.13.0 or greater and curl needed to run http2 tests'

https://app.travis-ci.com/github/jiridanek/skupper-router/jobs/578785860#L4657

That line is worrisome. All requirements for the test should be fulfulled!

[ganeshmurthy]

60: test_get_image_jpg (system_tests_http2_tls.Http2TestTlsStandaloneRouter) ... skipped 'Python 3.7 or greater, Quart 0.13.0 or greater and curl needed to run http2 tests'

https://app.travis-ci.com/github/jiridanek/skupper-router/jobs/578785860#L4657

That line is worrisome. All requirements for the test should be fulfulled!

Somehow this function - https://github.com/skupperproject/skupper-router/blob/main/tests/system_tests_http2.py#L67 - is returning True, which is why the tests are being skipped. Surely something is wrong with one of those three functions. This might be unrelated but this function - https://github.com/skupperproject/skupper-router/blob/main/tests/system_tests_http2.py#L39 - never returns False

[jiridanek]

I'll try debug it tomorrow. Find out what exactly is returning (not true).

[ganeshmurthy]

I'll try debug it tomorrow. Find out what exactly is returning (not true).

Thanks much @jiridanek

[jiridanek]

I'll try debug it tomorrow. Find out what exactly is returning (not true).

Thanks much @jiridanek

The reason was the following, https://app.travis-ci.com/github/jiridanek/skupper-router/jobs/578900073#L298

The pip install was not updating jinja2 and markupsafe packages, because they were already installed systemwide. New version of quart did not work with the old versions of jinja2 or markupsafe. The return of None in the function to check Python version did not matter; None is falsey, so that works fine.

edit: but, workarounding ^^^ breaks my other workaround for s390x ;(

[jiridanek]

So, currently, there is only a single real issue as far as I can tell

1. [Arm64] system_tests_router_mesh local-idle-timeout expired in test_06_parallel_priority (system_tests_router_mesh.ThreeRouterTest)  #300 https://app.travis-ci.com/github/jiridanek/skupper-router/jobs/578903357#L4619
2. (and TSAN failure in system_tests_http #543)

[codecov-commenter]

Codecov Report

Merging #654 (bc56641) into main (ed76bea) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #654   +/-   ##
=======================================
  Coverage   25.90%   25.90%           
=======================================
  Files         128      128           
  Lines       31195    31195           
  Branches     4973     4973           
=======================================
  Hits         8081     8081           
  Misses      22059    22059           
  Partials     1055     1055           

Flag	Coverage Δ
unittests	25.90% <ø> (ø)

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