Ondřej Surý authored Jul 14, 2020 and Ondřej Surý committed Feb 18, 2021

On 24-core machine, the tests would crash because we would run out of
the hazard pointers.  We now adjust the number of hazard pointers to be
in the <128,256> interval based on the number of available cores.

Note: This is just a band-aid and needs a proper fix.