(final binary)
$ cd /root/mrt && rm -f bwrace && cc -O2 -Wall -pthread -o bwrace bwrace.c
0 errors
$ ls -la bwrace
-rwxr-xr-x  1 root  wheel  ... /root/mrt/bwrace
(exit 0)
(intermediate iterations: v1 initial two-thread design; v2 burst 150k; v3 phased;
 each rebuilt the same way - see VERDICT.md poc_changes)