diff -Naur ceph-10.2.3-orig/src/krbd.cc ceph-10.2.3/src/krbd.cc
--- ceph-10.2.3-orig/src/krbd.cc	2016-09-21 15:48:55.000000000 +0000
+++ ceph-10.2.3/src/krbd.cc	2019-04-29 16:24:41.136578239 +0000
@@ -40,6 +40,8 @@
 #include <blkid/blkid.h>
 #include <libudev.h>
 
+const static int POLL_TIMEOUT=120000;
+
 using namespace std;
 
 struct krbd_ctx {
@@ -184,12 +186,17 @@
   for (;;) {
     struct pollfd fds[1];
     struct udev_device *dev;
+    int r;
 
     fds[0].fd = udev_monitor_get_fd(mon);
     fds[0].events = POLLIN;
-    if (poll(fds, 1, -1) < 0)
+    r = poll(fds, 1, POLL_TIMEOUT);
+    if (r < 0)
       return -errno;
 
+    if (r == 0)
+      return -ETIMEDOUT;
+
     dev = udev_monitor_receive_device(mon);
     if (!dev)
       continue;
@@ -458,12 +465,17 @@
   for (;;) {
     struct pollfd fds[1];
     struct udev_device *dev;
+    int r;
 
     fds[0].fd = udev_monitor_get_fd(mon);
     fds[0].events = POLLIN;
-    if (poll(fds, 1, -1) < 0)
+    r = poll(fds, 1, POLL_TIMEOUT);
+    if (r < 0)
       return -errno;
 
+    if (r == 0)
+      return -ETIMEDOUT;
+
     dev = udev_monitor_receive_device(mon);
     if (!dev)
       continue;