diff --git a/src/libs/zbxsysinfo/common/zbxkstat.c b/src/libs/zbxsysinfo/common/zbxkstat.c
index b950b78..dbda5bd 100644
--- a/src/libs/zbxsysinfo/common/zbxkstat.c
+++ b/src/libs/zbxsysinfo/common/zbxkstat.c
@@ -26,6 +26,7 @@
 static kstat_ctl_t	*kc = NULL;
 static kid_t		kc_id = 0;
 static kstat_t		*kc_vminfo;
+static kstat_t		*kc_sysinfo;
 
 static zbx_mutex_t	kstat_lock = ZBX_MUTEX_NULL;
 
@@ -62,6 +63,14 @@ static int	zbx_kstat_refresh(char **error)
 		ret = FAIL;
 		goto out;
 	}
+
+	if (NULL == (kc_sysinfo = kstat_lookup(kc, "unix", -1, "sysinfo")))
+	{
+		*error = zbx_dsprintf(*error, "failed to find sysinfo data: %s", zbx_strerror(errno));
+		ret = FAIL;
+		goto out;
+	}
+
 	ret = SUCCEED;
 out:
 	zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __func__);
@@ -147,10 +156,14 @@ void	zbx_kstat_collect(zbx_kstat_t *kstat)
 	kid_t		kid;
 	char		*error = NULL;
 	vminfo_t	vminfo;
+	sysinfo_t	sysinfo;
 
 	zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __func__);
 
-	while (-1 == (kid = kstat_read(kc, kc_vminfo, &vminfo)) || kc_id != kid)
+	while (-1 == (kid = kstat_read(kc, kc_vminfo, &vminfo)) ||
+			kc_id != kid ||
+			-1 == (kid = kstat_read(kc, kc_sysinfo, &sysinfo)) ||
+			kc_id != kid)
 	{
 		if (-1 == kid)
 			zabbix_log(LOG_LEVEL_DEBUG, "cannot collect kstat data, kstat_read: %s", ZBX_NULL2STR(error));
@@ -168,7 +181,7 @@ void	zbx_kstat_collect(zbx_kstat_t *kstat)
 
 	kstat->vminfo_index ^= 1;
 	kstat->vminfo[kstat->vminfo_index].freemem = vminfo.freemem;
-	kstat->vminfo[kstat->vminfo_index].updates = time(NULL);
+	kstat->vminfo[kstat->vminfo_index].updates = sysinfo.updates;
 
 	zbx_mutex_unlock(kstat_lock);
 
@@ -195,6 +208,7 @@ out:
  ******************************************************************************/
 int	zbx_kstat_get_freemem(zbx_uint64_t *value, zbx_uint64_t *pagesize, char **error)
 {
+	static int		last_pagesize = FAIL;
 	int			sysconf_pagesize, last, prev, ret = FAIL;
 	zbx_kstat_vminfo_t	*vminfo;
 
@@ -223,6 +237,18 @@ int	zbx_kstat_get_freemem(zbx_uint64_t *value, zbx_uint64_t *pagesize, char **er
 
 		if (NULL != pagesize)
 			*pagesize = sysconf_pagesize;
+
+		if (sysconf_pagesize != last_pagesize)
+		{
+			if (FAIL != last_pagesize)
+			{
+				zabbix_log(LOG_LEVEL_WARNING,
+						"sysconf(_SC_PAGESIZE) value has changed from [%d] to [%d]",
+						last_pagesize, sysconf_pagesize);
+			}
+
+			last_pagesize = sysconf_pagesize;
+		}
 	}
 	else
 		zabbix_log(LOG_LEVEL_DEBUG, "no new vminfo update is available");