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https://issues.apache.org/jira/browse/CASSANDRA-12957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15702564#comment-15702564
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Philip Thompson commented on CASSANDRA-12957:
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Is there ever an instance in which a segfault occurs but we don't see
{{Forked Java VM exited abnormally. Please note the time in the report does not
reflect the time until the VM exit.}}?
I think we need to just be more vigilant about examining those. We're limited
to consuming what junit outputs, and we should start always looking for
segfaults in the logs when we see these types of errors.
> Segfault shadows failures in unit tests
> ---------------------------------------
>
> Key: CASSANDRA-12957
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12957
> Project: Cassandra
> Issue Type: Bug
> Components: Testing
> Reporter: Alex Petrov
>
> It looks like a segfaulting VM will shadow the CI results, for example
> [here|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12651-segfault-testall/1/],
> I added a test that segfaults (on
> Some times the tests with
> {code}
> Forked Java VM exited abnormally. Please note the time in the report does not
> reflect the time until the VM exit.
> {code}
> error messages are disregarded or skipped due to the lack of information.
> Although if you look closer in the [full
> log|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12651-segfault-testall/1/consoleFull]
> you will see the actual segfault:
> {code}
> 12:51:30 [junit] # A fatal error has been detected by the Java Runtime
> Environment:
> 12:51:30 [junit] #
> 12:51:30 [junit] # SIGSEGV (0xb) at pc=0x00007f7dac4b9900, pid=12587,
> tid=140177756509952
> {code}
> Test result is {{1 failure}} (which is kind of expected), but this failure
> resulted into skip of all the other tests.
> Can we track the tests that were skipped not by test runner (reported by
> {{Failed: x, Skipped: y}} in test results), but without "intention" (test
> runner crash, segfault etc) and maybe add more infos on segfaults (possibly
> whole trace)? Might be there are unnoticed segfaults?
> cc [~philipthompson]
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