From 3daf7a2d0f48c7fb1a098cfc47f7739f43b0509d Mon Sep 17 00:00:00 2001
From: Julian Kunkel <JulianKunkel@users.noreply.github.com>
Date: Tue, 19 Jan 2021 21:23:30 +0000
Subject: [PATCH] Bugfix: valgrind memory issues (#314)

---
 src/md-workbench.c | 4 +++-
 src/mdtest.c       | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/md-workbench.c b/src/md-workbench.c
index 869b4fd..7c130b1 100644
--- a/src/md-workbench.c
+++ b/src/md-workbench.c
@@ -6,6 +6,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <math.h>
+#include <assert.h>
 
 #include "md-workbench.h"
 #include "config.h"
@@ -343,7 +344,8 @@ static int compare_floats(time_result_t * x, time_result_t * y){
 }
 
 static double runtime_quantile(int repeats, time_result_t * times, float quantile){
-  int pos = round(quantile * repeats + 0.49);
+  int pos = round(quantile * (repeats - 1) + 0.49);
+  assert(pos < repeats);
   return times[pos].runtime;
 }
 
diff --git a/src/mdtest.c b/src/mdtest.c
index 5fe4263..6d610df 100644
--- a/src/mdtest.c
+++ b/src/mdtest.c
@@ -668,6 +668,7 @@ void mdtest_read(int random, int dirs, const long dir_iter, char *path) {
         if (alloc_res) {
             FAIL("out of memory");
         }
+        memset(read_buffer, -1, o.read_bytes);
     }
 
     uint64_t stop_items = o.items;