Chrome Version: (copy from chrome://version)
OS: (e.g. Win10, MacOS 10.12, etc...)

What steps will reproduce the problem?
(1) in chroot EC repo: make buildall -j


What is the expected result?

The make buildall should end soon

What happens instead?

It stuck over 10 minutes.

here's the log:
...
Test shmalloc passed! (0.674 seconds)
Test x25519 passed! (0.576 seconds)
  TEST    run-cr50_fuzz
Test interrupt passed! (1.213 seconds)
Test kb_scan passed! (3.183 seconds)