Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/cmd/pm/misc.C
#include "misc.h" char errbuf[200]; char *progname; int wantwarn = 0; int dbg = 0; // dbg = 1 : dump slugs // dbg = 2 : dump ranges // dbg = 4 : report function entry // dbg = 8 : follow queue progress // dbg = 16: follow page fill progress