$ gcc -O -o pppoerace7 pppoerace7.c
$ ./pppoerace7 100 100000
PPPOERACE7-DONE 100 cycles, no panic
# harness kernel X86_64_NG7 (NETGRAPH7_PPPOE compiled in); each cycle:
# mkpeer pppoe + CONNECT (arms 2s retransmit ticker) + usleep + RMHOOK teardown