diff --git a/qa/suites/krbd/wac/sysfs/% b/qa/suites/krbd/wac/sysfs/%
new file mode 100644
index 00000000000000..e69de29bb2d1d6
diff --git a/qa/suites/krbd/wac/sysfs/ceph/ceph.yaml b/qa/suites/krbd/wac/sysfs/ceph/ceph.yaml
new file mode 100644
index 00000000000000..2030acb90836cc
--- /dev/null
+++ b/qa/suites/krbd/wac/sysfs/ceph/ceph.yaml
@@ -0,0 +1,3 @@
+tasks:
+- install:
+- ceph:
diff --git a/qa/suites/krbd/wac/sysfs/clusters/fixed-1.yaml b/qa/suites/krbd/wac/sysfs/clusters/fixed-1.yaml
new file mode 120000
index 00000000000000..549e8809abe4f9
--- /dev/null
+++ b/qa/suites/krbd/wac/sysfs/clusters/fixed-1.yaml
@@ -0,0 +1 @@
+../../../../../clusters/fixed-1.yaml
\ No newline at end of file
diff --git a/qa/suites/krbd/wac/sysfs/conf.yaml b/qa/suites/krbd/wac/sysfs/conf.yaml
new file mode 100644
index 00000000000000..8279674dfa7c33
--- /dev/null
+++ b/qa/suites/krbd/wac/sysfs/conf.yaml
@@ -0,0 +1,7 @@
+overrides:
+  ceph:
+    conf:
+      global:
+        ms die on skipped message: false
+      client:
+        rbd default features: 5
diff --git a/qa/suites/krbd/wac/sysfs/tasks/stable_pages_required.yaml b/qa/suites/krbd/wac/sysfs/tasks/stable_pages_required.yaml
new file mode 100644
index 00000000000000..3d23227a022c90
--- /dev/null
+++ b/qa/suites/krbd/wac/sysfs/tasks/stable_pages_required.yaml
@@ -0,0 +1,5 @@
+tasks:
+- workunit:
+    clients:
+      all:
+        - rbd/krbd_stable_pages_required.sh
diff --git a/qa/suites/krbd/wac/wac/% b/qa/suites/krbd/wac/wac/%
new file mode 100644
index 00000000000000..e69de29bb2d1d6
diff --git a/qa/suites/krbd/wac/wac/ceph/ceph.yaml b/qa/suites/krbd/wac/wac/ceph/ceph.yaml
new file mode 100644
index 00000000000000..2030acb90836cc
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/ceph/ceph.yaml
@@ -0,0 +1,3 @@
+tasks:
+- install:
+- ceph:
diff --git a/qa/suites/krbd/wac/wac/clusters/fixed-3.yaml b/qa/suites/krbd/wac/wac/clusters/fixed-3.yaml
new file mode 100644
index 00000000000000..3ed30b94ff082b
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/clusters/fixed-3.yaml
@@ -0,0 +1,8 @@
+roles:
+- [mon.a, mon.c, mgr.x, osd.0, osd.1, osd.2]
+- [mon.b, mgr.y, osd.3, osd.4, osd.5]
+- [client.0]
+openstack:
+- volumes: # attached to each instance
+    count: 3
+    size: 10 # GB
diff --git a/qa/suites/krbd/wac/wac/conf.yaml b/qa/suites/krbd/wac/wac/conf.yaml
new file mode 100644
index 00000000000000..8279674dfa7c33
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/conf.yaml
@@ -0,0 +1,7 @@
+overrides:
+  ceph:
+    conf:
+      global:
+        ms die on skipped message: false
+      client:
+        rbd default features: 5
diff --git a/qa/suites/krbd/wac/wac/tasks/wac.yaml b/qa/suites/krbd/wac/wac/tasks/wac.yaml
new file mode 100644
index 00000000000000..52dabc38bfce87
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/tasks/wac.yaml
@@ -0,0 +1,11 @@
+tasks:
+- exec:
+    client.0:
+    - "dmesg -C"
+- rbd:
+    all:
+      fs_type: ext4
+- workunit:
+    clients:
+      all:
+        - suites/wac.sh
diff --git a/qa/suites/krbd/wac/wac/verify/many-resets.yaml b/qa/suites/krbd/wac/wac/verify/many-resets.yaml
new file mode 100644
index 00000000000000..526897e9cda8cc
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/verify/many-resets.yaml
@@ -0,0 +1,10 @@
+overrides:
+  ceph:
+    conf:
+      global:
+        ms inject socket failures: 500
+tasks:
+- exec:
+    client.0:
+    - "dmesg | grep -q 'libceph: osd.* socket closed'"
+    - "dmesg | grep -q 'libceph: osd.* socket error on write'"
diff --git a/qa/suites/krbd/wac/wac/verify/no-resets.yaml b/qa/suites/krbd/wac/wac/verify/no-resets.yaml
new file mode 100644
index 00000000000000..2728479da771cb
--- /dev/null
+++ b/qa/suites/krbd/wac/wac/verify/no-resets.yaml
@@ -0,0 +1,5 @@
+tasks:
+- exec:
+    client.0:
+    - "! dmesg | grep -q 'libceph: osd.* socket closed'"
+    - "! dmesg | grep -q 'libceph: osd.* socket error on write'"
diff --git a/qa/workunits/rbd/krbd_stable_pages_required.sh b/qa/workunits/rbd/krbd_stable_pages_required.sh
new file mode 100755
index 00000000000000..a7c44c8f42f487
--- /dev/null
+++ b/qa/workunits/rbd/krbd_stable_pages_required.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -ex
+
+IMAGE_NAME="stable-pages-required-test"
+
+rbd create --size 1 $IMAGE_NAME
+DEV=$(sudo rbd map $IMAGE_NAME)
+[[ $(blockdev --getsize64 $DEV) -eq 1048576 ]]
+grep -q 1 /sys/block/${DEV#/dev/}/bdi/stable_pages_required
+
+rbd resize --size 2 $IMAGE_NAME
+[[ $(blockdev --getsize64 $DEV) -eq 2097152 ]]
+grep -q 1 /sys/block/${DEV#/dev/}/bdi/stable_pages_required
+sudo rbd unmap $DEV
+
+echo OK
diff --git a/qa/workunits/suites/wac.sh b/qa/workunits/suites/wac.sh
new file mode 100755
index 00000000000000..49b4f1464e1c20
--- /dev/null
+++ b/qa/workunits/suites/wac.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -ex
+
+wget http://download.ceph.com/qa/wac.c
+gcc -o wac wac.c
+set +e
+timeout 5m ./wac -l 65536 -n 64 -r wac-test
+RET=$?
+set -e
+[[ $RET -eq 124 ]]
+echo OK