[*] vm.stats.vm.v_free_count baseline: 832770
[*] (a) firing 2000 x NGM_ASCII2BINARY unterminated quote (~5000 B leaked per call expected)
[*] (a) first sendto returned EINVAL (expected; leak occurs on the error path)
[+] (a) free pages: 832770 -> 828247 (delta 4523 pages = 17 MB)
[*] (b) firing 1500 x NGM_BINARY2ASCII 20KB non-default (20 KB leaked per call expected)
[*] (b) first sendto returned ERANGE (expected; workBuf leak occurs on the error path)
[+] (b) free pages now: 797907 (delta from (a): 30340 pages = 118 MB; expected ~29 MB)
[*] done