Race condition
A race condition or race hazard is the behavior of an electronics, software, or other system where the system's substantive behavior is dependent on the sequence or timing of other uncontrollable events. It becomes a bug when one or more of the possible behaviors is undesirable.
Treatment of slaves in the United States
In New Orleans where the Code Noir held sway under French and Spanish rule, people of mixed race were defined as mulatto: one half white, half black; quadroon: three quarters white, one quarter black; octoroon: seven-eights white, one eighth black. The Code Noir proscribed marriage between those of mixed race and full blooded, or "slave" blacks.  This undoubtedly formed the base of the well known color discrimination within the black community, known as colorism, where in the Black community, lighter skinned black women are preferred by black men over darker skinned black females. In the Quarter lighter skinned blacks had a higher social position and constituted a higher percentage of the free black population.