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  1. JDK
  2. JDK-8233712

Limit default tests jobs based on ulimit -u setting

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    • b24
    • aarch64
    • linux

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      Description

        On some larger Aarch64 Linux machines we see test failures with default test job configs. Failures usually look like this:

        STDERR:
         stdout: [[0.012s][warning][os,thread] Failed to start thread - pthread_create failed (EAGAIN) for attributes: stacksize: 2048k, guardsize: 64k, detached.
        #
        # There is insufficient memory for the Java Runtime Environment to continue.
        # Cannot create worker GC thread. Out of system resources.
        # An error report file with more information is saved as:
        # /home/openjdk/jdk11u/build/linux-aarch64-normal-server-release/test-support/jtreg_test_hotspot_jtreg_tier1/scratch/14/hs_err_pid83190.log

        We observe such failures when the number of available processor cores is large (e.g. 96), yet the 'ulimit -u' setting for the user running tests is rather low:

        $ ulimit -u
        4096
        $ id
        uid=1001(openjdk) gid=1001(openjdk) groups=1001(openjdk) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

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                sgehwolf Severin Gehwolf
                sgehwolf Severin Gehwolf
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