diff --git a/tests/test_add_osd.sh b/tests/test_add_osd.sh
index dbc3e15c8..9e9b57a35 100755
--- a/tests/test_add_osd.sh
+++ b/tests/test_add_osd.sh
@@ -4,7 +4,7 @@ PG_COUNT=16
 
 . `dirname $0`/run_3osds.sh
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -end_fsync=1 \
         -rw=write -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -cluster_log_level=10
 
diff --git a/tests/test_change_pg_count.sh b/tests/test_change_pg_count.sh
index 2928cb48f..5b65db0bb 100755
--- a/tests/test_change_pg_count.sh
+++ b/tests/test_change_pg_count.sh
@@ -37,7 +37,7 @@ if ! ($ETCDCTL get --prefix /vitastor/pg/state/ --print-value-only | jq -s -e '(
     format_error "FAILED: 16 PGS NOT UP"
 fi
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
 fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=write \
     -etcd=$ETCD_URL -pool=1 -inode=2 -size=128M -cluster_log_level=10
 
diff --git a/tests/test_etcd_fail.sh b/tests/test_etcd_fail.sh
index a18162d97..665f2bf32 100755
--- a/tests/test_etcd_fail.sh
+++ b/tests/test_etcd_fail.sh
@@ -5,7 +5,7 @@ ETCD_COUNT=5
 
 . `dirname $0`/run_3osds.sh
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=randwrite \
         -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -cluster_log_level=10
 
@@ -26,7 +26,7 @@ kill_etcds()
 
 kill_etcds &
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4k -direct=1 -iodepth=1 -fsync=1 -rw=randwrite \
         -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -cluster_log_level=10 -runtime=30
 
diff --git a/tests/test_interrupted_rebalance.sh b/tests/test_interrupted_rebalance.sh
index cae692589..e951d9e93 100755
--- a/tests/test_interrupted_rebalance.sh
+++ b/tests/test_interrupted_rebalance.sh
@@ -4,7 +4,7 @@
 
 IMG_SIZE=960
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
 fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=16 -fsync=16 -rw=write \
     -etcd=$ETCD_URL -pool=1 -inode=2 -size=${IMG_SIZE}M -cluster_log_level=10
 
diff --git a/tests/test_move_reappear.sh b/tests/test_move_reappear.sh
index 45f2eec6e..406cb617b 100755
--- a/tests/test_move_reappear.sh
+++ b/tests/test_move_reappear.sh
@@ -21,7 +21,7 @@ if ! ($ETCDCTL get /vitastor/pg/state/1/1 --print-value-only | jq -s -e '(. | le
     format_error "Failed to start the PG active+degraded"
 fi
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
 fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=write \
     -etcd=$ETCD_URL -pool=1 -inode=2 -size=32M -cluster_log_level=10
 
diff --git a/tests/test_rm.sh b/tests/test_rm.sh
index f6a279096..56200f471 100755
--- a/tests/test_rm.sh
+++ b/tests/test_rm.sh
@@ -3,7 +3,7 @@
 PG_COUNT=16
 . `dirname $0`/run_3osds.sh
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 \
         -end_fsync=1 -fsync=1 -rw=write -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -cluster_log_level=10
 
diff --git a/tests/test_snapshot.sh b/tests/test_snapshot.sh
index 5ff27cf63..88033735e 100755
--- a/tests/test_snapshot.sh
+++ b/tests/test_snapshot.sh
@@ -6,7 +6,7 @@
 
 $ETCDCTL put /vitastor/config/inode/1/2 '{"name":"testimg","size":'$((32*1024*1024))'}'
 
-LD_PRELOAD="libasan.so.5 build/src/libfio_vitastor.so" \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=write \
         -etcd=$ETCD_URL -pool=1 -inode=2 -size=32M -cluster_log_level=10
 
@@ -14,11 +14,11 @@ $ETCDCTL put /vitastor/config/inode/1/2 '{"name":"testimg@0","size":'$((32*1024*
 $ETCDCTL put /vitastor/config/inode/1/3 '{"parent_id":2,"name":"testimg","size":'$((32*1024*1024))'}'
 
 # Preload build/src/libfio_vitastor.so so libasan detects all symbols
-LD_PRELOAD="libasan.so.5 build/src/libfio_vitastor.so" \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4k -direct=1 -iodepth=1 -fsync=32 -buffer_pattern=0xdeadface \
         -rw=randwrite -etcd=$ETCD_URL -image=testimg -number_ios=1024
 
-LD_PRELOAD="libasan.so.5 build/src/libfio_vitastor.so" \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -rw=read -etcd=$ETCD_URL -pool=1 -inode=3 -size=32M
 
 qemu-img convert -S 4096 -p \
diff --git a/tests/test_splitbrain.sh b/tests/test_splitbrain.sh
index 9ac6e6d4a..48bc75d15 100755
--- a/tests/test_splitbrain.sh
+++ b/tests/test_splitbrain.sh
@@ -2,6 +2,7 @@
 
 OSD_COUNT=2
 PG_SIZE=2
+PG_MINSIZE=1
 SCHEME=replicated
 
 . `dirname $0`/run_3osds.sh
@@ -13,7 +14,7 @@ sleep 2
 
 # Write
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4k -direct=1 -iodepth=1 -fsync=1 \
         -rw=randwrite -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -runtime=10 -number_ios=100
 
diff --git a/tests/test_write.sh b/tests/test_write.sh
index 6c561497c..09fc6c68a 100755
--- a/tests/test_write.sh
+++ b/tests/test_write.sh
@@ -7,20 +7,20 @@
 
 # Random writes without immediate_commit were stalling OSDs
 
-LD_PRELOAD=libasan.so.5 \
-    fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=124k -direct=1 -numjobs=16 -iodepth=4 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
+    fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=68k -direct=1 -numjobs=16 -iodepth=4 \
         -rw=randwrite -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -runtime=10
 
 # A lot of parallel syncs was crashing the primary OSD at some point
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4k -direct=1 -numjobs=64 -iodepth=1 -fsync=1 \
         -rw=randwrite -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -number_ios=100
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=write -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -cluster_log_level=10
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4k -direct=1 -iodepth=1 -fsync=32 -buffer_pattern=0xdeadface \
         -rw=randwrite -etcd=$ETCD_URL -pool=1 -inode=1 -size=128M -number_ios=1024
 
diff --git a/tests/test_write_no_same.sh b/tests/test_write_no_same.sh
index 588c3b7c4..3b4953f15 100755
--- a/tests/test_write_no_same.sh
+++ b/tests/test_write_no_same.sh
@@ -11,7 +11,7 @@ GLOBAL_CONF='{"immediate_commit":"all"}'
 
 # Test basic write
 
-LD_PRELOAD=libasan.so.5 \
+LD_PRELOAD="build/src/libfio_vitastor.so" \
     fio -thread -name=test -ioengine=build/src/libfio_vitastor.so -bs=4M -direct=1 -iodepth=1 -rw=write -etcd=$ETCD_URL -pool=1 -inode=1 -size=1G -cluster_log_level=10
 
 format_green OK