Index: pmccontrol/pmccontrol.c
===================================================================
--- pmccontrol/pmccontrol.c	(revision 223980)
+++ pmccontrol/pmccontrol.c	(working copy)
@@ -30,7 +30,6 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/queue.h>
-#include <sys/cpuset.h>
 #include <sys/sysctl.h>
 
 #include <assert.h>
@@ -134,33 +133,15 @@ pmcc_init_debug(void)
 static int
 pmcc_do_enable_disable(struct pmcc_op_list *op_list)
 {
-	long cpusetsize;
 	int c, error, i, j, ncpu, npmc, t;
-	cpuset_t haltedcpus, cpumask;
 	struct pmcc_op *np;
 	unsigned char *map;
 	unsigned char op;
 	int cpu, pmc;
-	size_t setsize;
 
 	if ((ncpu = pmc_ncpu()) < 0)
 		err(EX_OSERR, "Unable to determine the number of cpus");
 
-	/* Determine the set of active CPUs. */
-	cpusetsize = sysconf(_SC_CPUSET_SIZE);
-	if (cpusetsize == -1 || (u_long)cpusetsize > sizeof(cpuset_t)) {
-		err(EX_OSERR, "ERROR: Cannot determine which CPUs are "
-		    "halted");
-	}
-	CPU_ZERO(&haltedcpus);
-	setsize = (size_t)cpusetsize;
-	if (ncpu > 1 && sysctlbyname("machdep.hlt_cpus", &haltedcpus,
-	    &setsize, NULL, 0) < 0)
-		err(EX_OSERR, "ERROR: Cannot determine which CPUs are "
-		    "halted");
-	CPU_FILL(&cpumask);
-	CPU_NAND(&cpumask, &haltedcpus);
-
 	/* Determine the maximum number of PMCs in any CPU. */
 	npmc = 0;
 	for (c = 0; c < ncpu; c++) {
@@ -207,8 +188,7 @@ pmcc_do_enable_disable(struct pmcc_op_list *op_lis
 
 		if (cpu == PMCC_CPU_ALL)
 			for (i = 0; i < ncpu; i++) {
-				if (CPU_ISSET(i, &cpumask))
-					SET_PMCS(i, pmc, op);
+				SET_PMCS(i, pmc, op);
 			}
 		else
 			SET_PMCS(cpu, pmc, op);
Index: pmcstat/pmcstat.c
===================================================================
--- pmcstat/pmcstat.c	(revision 223980)
+++ pmcstat/pmcstat.c	(working copy)
@@ -552,7 +552,7 @@ int
 main(int argc, char **argv)
 {
 	double interval;
-	int option, npmc, ncpu, haltedcpus;
+	int option, npmc, ncpu;
 	int c, check_driver_stats, current_cpu, current_sampling_count;
 	int do_callchain, do_descendants, do_logproccsw, do_logprocexit;
 	int do_print;
@@ -617,14 +617,6 @@ main(int argc, char **argv)
 	if (sysctlbyname("hw.ncpu", &ncpu, &dummy, NULL, 0) < 0)
 		err(EX_OSERR, "ERROR: Cannot determine the number of CPUs");
 	cpumask = (1 << ncpu) - 1;
-	haltedcpus = 0;
-	if (ncpu > 1) {
-		if (sysctlbyname("machdep.hlt_cpus", &haltedcpus, &dummy,
-		    NULL, 0) < 0)
-			err(EX_OSERR, "ERROR: Cannot determine which CPUs are "
-			    "halted");
-		cpumask &= ~haltedcpus;
-	}
 
 	while ((option = getopt(argc, argv,
 	    "CD:EF:G:M:NO:P:R:S:TWc:df:gk:m:n:o:p:qr:s:t:vw:z:")) != -1)
@@ -637,7 +629,7 @@ main(int argc, char **argv)
 		case 'c':	/* CPU */
 
 			if (optarg[0] == '*' && optarg[1] == '\0')
-				cpumask = ((1 << ncpu) - 1) & ~haltedcpus;
+				cpumask = (1 << ncpu) - 1;
 			else
 				cpumask = pmcstat_get_cpumask(optarg);