diff --git a/rook/README.md b/rook/README.md
index 58d0016..627631b 100644
--- a/rook/README.md
+++ b/rook/README.md
@@ -123,3 +123,12 @@ Especially these:
 ## Other flux related problems
 
 * The host is not cleared / old /var/lib/rook is persisting
+
+## Troubleshooting: PVC stuck pending, no csi-{cephfs,rbd}provisioner-plugin pod in rook-ceph namespace
+
+2021-07-31: it seems that the provisioner plugin tend to silently die.
+Restarting the `rook-ceph-operator` deployment will get them back up:
+
+```
+kubectl rollout restart deployment/rook-ceph-operator -n rook-ceph
+```