diff --git a/test/shell/lvconvert-raid-reshape-load.sh b/test/shell/lvconvert-raid-reshape-load.sh
index 11af24def..c42154a4b 100644
--- a/test/shell/lvconvert-raid-reshape-load.sh
+++ b/test/shell/lvconvert-raid-reshape-load.sh
@@ -17,9 +17,6 @@ SKIP_WITH_LVMPOLLD=1
 
 # Test reshaping under io load
 
-# FIXME: This test requires 3GB in /dev/shm!
-test $(aux total_mem) -gt $((4096*1024)) || skip
-
 which mkfs.ext4 || skip
 aux have_raid 1 13 2 || skip
 
@@ -40,7 +37,7 @@ vgcreate $SHARED -s 1M "$vg" "${DEVICES[@]}"
 trap 'cleanup_mounted_and_teardown' EXIT
 
 # Create 13-way striped raid5 (14 legs total)
-lvcreate --yes --type raid5_ls --stripes 13 -L190M -n$lv1 $vg
+lvcreate --yes --type raid5_ls --stripes 13 -L4 -n$lv1 $vg
 check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
 check lv_first_seg_field $vg/$lv1 data_stripes 13
 check lv_first_seg_field $vg/$lv1 stripes 14
diff --git a/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh b/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
index c7ccad8cc..cadacb581 100644
--- a/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
+++ b/test/shell/lvconvert-raid-reshape-stripes-load-fail.sh
@@ -17,9 +17,6 @@ SKIP_WITH_LVMPOLLD=1
 
 # Test reshaping under io load
 
-# FIXME: This test requires 3GB in /dev/shm!
-test $(aux total_mem) -gt $((4096*1024)) || skip
-
 which mkfs.ext4 || skip
 aux have_raid 1 13 2 || skip
 
@@ -40,7 +37,7 @@ vgcreate $SHARED -s 1M "$vg" "${DEVICES[@]}"
 trap 'cleanup_mounted_and_teardown' EXIT
 
 # Create 13-way striped raid5 (14 legs total)
-lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L200M -n$lv1 $vg
+lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L4 -n$lv1 $vg
 check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
 check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
 check lv_first_seg_field $vg/$lv1 data_stripes 10
diff --git a/test/shell/lvconvert-raid-reshape-stripes-load-reload.sh b/test/shell/lvconvert-raid-reshape-stripes-load-reload.sh
index 839e7048f..d439a7cd5 100644
--- a/test/shell/lvconvert-raid-reshape-stripes-load-reload.sh
+++ b/test/shell/lvconvert-raid-reshape-stripes-load-reload.sh
@@ -17,9 +17,6 @@ SKIP_WITH_LVMPOLLD=1
 
 # Test reshaping under io load
 
-# FIXME: This test requires 3GB in /dev/shm!
-test $(aux total_mem) -gt $((4096*1024)) || skip
-
 which mkfs.ext4 || skip
 aux have_raid 1 13 2 || skip
 
@@ -40,7 +37,7 @@ vgcreate $SHARED -s 1M "$vg" "${DEVICES[@]}"
 trap 'cleanup_mounted_and_teardown' EXIT
 
 # Create 13-way striped raid5 (14 legs total)
-lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L200M -n$lv1 $vg
+lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L4 -n$lv1 $vg
 check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
 check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
 check lv_first_seg_field $vg/$lv1 data_stripes 10
diff --git a/test/shell/lvconvert-raid-reshape-stripes-load.sh b/test/shell/lvconvert-raid-reshape-stripes-load.sh
index 29790aace..aa6913f95 100644
--- a/test/shell/lvconvert-raid-reshape-stripes-load.sh
+++ b/test/shell/lvconvert-raid-reshape-stripes-load.sh
@@ -17,9 +17,6 @@ SKIP_WITH_LVMPOLLD=1
 
 # Test reshaping under io load
 
-# FIXME: This test requires 3GB in /dev/shm!
-test $(aux total_mem) -gt $((4096*1024)) || skip
-
 which mkfs.ext4 || skip
 aux have_raid 1 13 2 || skip
 
@@ -40,7 +37,7 @@ vgcreate $SHARED -s 1M "$vg" "${DEVICES[@]}"
 trap 'cleanup_mounted_and_teardown' EXIT
 
 # Create 13-way striped raid5 (14 legs total)
-lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L200M -n$lv1 $vg
+lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L4 -n$lv1 $vg
 check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
 check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
 check lv_first_seg_field $vg/$lv1 data_stripes 10