New Failures in AIX nightly run (possibly v8_inspector change)

[mhdawson]

• Version: master
• Platform: Aix
• Subsystem:

3 new failures in last nights run, opening as single issue until more investigation is completed.

https://ci.nodejs.org/job/node-test-commit-aix/nodes=aix61-ppc64/195/console

not ok 6 parallel/test-async-wrap-post-did-throw
# FATAL ERROR: node::RandomBytesRequest() Out of Memory


not ok 8 parallel/test-async-wrap-throw-from-callback
# 
# assert.js:90
#   throw new assert.AssertionError({
#   ^
# AssertionError: pre closed with code null
#     at ChildProcess.child.on (/home/iojs/build/workspace/node-test-commit-aix/nodes/aix61-ppc64/test/parallel/test-async-wrap-throw-from-callback.js:65:14)
#     at emitTwo (events.js:106:13)
#     at ChildProcess.emit (events.js:191:7)
#     at maybeClose (internal/child_process.js:852:16)
#     at Process.ChildProcess._handle.onexit (internal/child_process.js:215:5)
  ---
  duration_ms: 0.978
  ...


not ok 177 parallel/test-crypto-random
# FATAL ERROR: node::RandomBytesRequest() Out of Memory

[imran-iq]

Here is the diff between build 194 (0 failures) and 195 (3 failures)
112b9cd...894203d

[mhdawson]

re-run to see if they are consistent https://ci.nodejs.org/job/node-test-commit-aix/

[mhdawson]

Seem to fail consistently as failed in re-run

[mhdawson]

Seems to be related to malloc(0) behaviour. By default AIX fails malloc(0) and we've told it to have the linux malloc(0) behaviour. Not sure how but it looks like this change has somehow affected that.

Believe the failure in test-crypto-random is due to case where it does crypto.randomBytes(0) as this seems to fail with an out of memory.

@ofrobots does the inspector do anything to hook or intercept malloc ?

[mhdawson]

simplest test case to recreated:

-bash-4.3$ cat test.js
var crypto = require('crypto');
crypto.randomBytes(0);

[imran-iq]

Compiled with _ALL_SOURCE and _LINUX_SOURCE_COMPAT test still fail.
https://ci.nodejs.org/job/node-test-commit-aix/nodes=aix61-ppc64/197/

[ofrobots]

@mhdawson I am not aware of any interception of malloc in v8_inspector, so this is curious. Let me know what you find out.

[mhdawson]

iWuzHere is also having some trouble compiling on our local machines (although builds ok at least on community CI) so this should be a fun one.

[ofrobots]

LMK how to help.

[mhdawson]

@ofrobots thanks for the offer, I think we need to gather some additional info about the compile failure (may be the compiler crashing) and I'm also trying a build with --without-inspector to see if that resolves the test failures. Once we have some more info I'll reach out.

[mhdawson]

Run here https://ci.nodejs.org/job/node-test-commit-aix-mdawson/9/ against PR that fixes --without-inspector to see if we still see failures if option is disabled, may help to focus on where to look if we don't see failures in that mode.