Re: MySQL 8.0.16 on Fedora/PPC64LE : I see issues, inc. hangs

[Tony Reix]

As I said in first post, on Fedora/PPC64LE, I first built MySQL and ran MySQL Tests in DEBUG mode under root, and I got:
disabled : 21
skipped : 818
fail : 89
pass : 4031
hangs : 3

Now, I've built MySQL and I ran the tests in RELEASE mode under not-root, and I got:
disabled : 18
skipped : 1416
fail : 7
pass : 3518
hang : 0

The differences are:
- About 600 more tests are skipped in RELEASE mode
- About 500 more tests are run in DEBUG mode
- For now, I got hangs only in DEBUG mode on PPC64LE (but never on Fedora/x86_64 still in DEBUG mode under root)

On Fedora/x86_64, still in DEBUG mode under root, I have 42 failed tests, 41 common to those on Fedora/PPC64RE.
Out of these 42 tests failing in DEBUG/root mode, only 5 of them also fail in RELEASE/notRoot mode. All other 37 tests do pass in DEBUG/root mode.

Conclusion:
- either being root does make several tests to fail, or compiling in DEBUG mode makes changes that lead to 37 tests to fail. Thus, I have to run the tests in DEBUG mode and not root.
- moreover, I should not see hangs, even in DEBUG/root mode, I think.
- MySQL tests should be run in DEBUG and then RELEASE mode in order to cover all tests (4120 tests instead of only 3525).