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-rw-r--r--lib/libmemstat/memstat_uma.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/libmemstat/memstat_uma.c b/lib/libmemstat/memstat_uma.c
index 87a6b573307b..89b394c151ad 100644
--- a/lib/libmemstat/memstat_uma.c
+++ b/lib/libmemstat/memstat_uma.c
@@ -213,6 +213,15 @@ retry:
mtp->mt_numfrees += upsp->ups_frees;
}
+ /*
+ * Values for uth_allocs and uth_frees frees are snap.
+ * It may happen that kernel reports that number of frees
+ * is greater than number of allocs. See counter(9) for
+ * details.
+ */
+ if (mtp->mt_numallocs < mtp->mt_numfrees)
+ mtp->mt_numallocs = mtp->mt_numfrees;
+
mtp->mt_size = uthp->uth_size;
mtp->mt_rsize = uthp->uth_rsize;
mtp->mt_memalloced = mtp->mt_numallocs * uthp->uth_size;