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From GitBox <...@apache.org>
Subject [GitHub] [mesos] cf-natali commented on pull request #385: Fixed read of uninitialized variables detected with UBSAN.
Date Sat, 15 May 2021 22:56:52 GMT

cf-natali commented on pull request #385:
URL: https://github.com/apache/mesos/pull/385#issuecomment-841736466


   @asekretenko Would it be possible to revert it?
   Since merging it I've noticed that I get some tests failing randomly - it's really strange,
they are cgroup isolator tests which seem completely unrelated, e.g.:
   
   ```
   [ RUN      ] MesosContainerizerTest.StatusWithContainerID
   ../../src/tests/mesos.cpp:736: Failure
   Failed to wait 15secs for cgroups::destroy(hierarchy, cgroup)
   -----------------------------------------------------------
   We're very sorry but we can't seem to destroy existing
   cgroups that we likely created as part of an earlier
   invocation of the tests. Please manually destroy the cgroup
   at '/sys/fs/cgroup/memory/mesos_test_92a75d38-a749-4894-9746-79f8b3590b7c/57721582-cd4d-43a7-8fcf-0b57e26a7987'
by first
   manually killing all the processes found in the file at '/sys/fs/cgroup/memory/mesos_test_92a75d38-a749-4894-9746-79f8b3590b7c/57721582-cd4d-43a7-8fcf-0b57e26a7987/tasks'
   -----------------------------------------------------------
   ../../src/tests/mesos.cpp:782: Failure
   Failed to wait 15secs for cgroups::destroy(hierarchy, cgroup)
   [  FAILED  ] MesosContainerizerTest.StatusWithContainerID (30062 ms)
   ```
   
   I have no idea what's going on, the only explanation I can see is that somehow before because
these variables where not initialised they were pretty much always `true` (non-0 bool) and
somehow the tests might depend on it.
   I'll try to understand what causes it but in the meantime probably best to revert.


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