test: investigate child-process-pass-fd

[BridgeAR]

This failed on a recent CI run.

https://ci.nodejs.org/job/node-test-commit-aix/8817/nodes=aix61-ppc64/console

not ok 1753 sequential/test-child-process-pass-fd
  ---
  duration_ms: 2.0
  severity: fail
  stack: |-
    events.js:182
          throw er; // Unhandled 'error' event
          ^
    
    Error: spawn /home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/out/Release/node EAGAIN
        at _errnoException (util.js:1018:13)
        at Process.ChildProcess._handle.onexit (internal/child_process.js:202:19)
        at onErrorNT (internal/child_process.js:390:16)
        at _combinedTickCallback (internal/process/next_tick.js:138:11)
        at process._tickCallback (internal/process/next_tick.js:180:9)
        at Function.Module.runMain (module.js:643:11)
        at startup (bootstrap_node.js:187:16)
        at bootstrap_node.js:608:3
  ...

[mhdawson]

I think I've see if fail a few times today

[mhdawson]

I don't see any changes to the test recently.

[mhdawson]

Stress test https://ci.nodejs.org/job/node-stress-single-test/1423/

[mhdawson]

@nodejs/platform-aix

[richardlau]

Stress test (with corrected RUN_TESTS parameter): https://ci.nodejs.org/job/node-stress-single-test/1425/

[mhdawson]

Even though stress test passed, still seeing failures: https://ci.nodejs.org/job/node-test-commit-aix/nodes=aix61-ppc64/8867/console

just this morning.

[BridgeAR]

This is the test that I see failing most often currently. It would really be great to get this fixed.

Ping @nodejs/testing @nodejs/platform-aix

[Trott]

Stress test with 10K runs rater than 200: https://ci.nodejs.org/job/node-stress-single-test/1431/

[Trott]

This test does spawn 80 copies of itself, so perhaps an EAGAIN is something it should reasonably accommodate (either by ignoring or by retrying).

Pinging @santigimeno for an opinion on that approach as they wrote the test...

[Trott]

Build failure on the stress test. Let's try agian: https://ci.nodejs.org/job/node-stress-single-test/1432/nodes=aix61-ppc64/console

EDIT: Hmm, I guess this 10K tests will take more than a day to complete. Still, would like to let it run for a few hours at least...

EDIT AGAIN: ...and the weekend is probably the best time for that so....