--- fakeroot-1.30.1/communicate.c	2022-01-17 23:42:20.000000000 +0300
+++ fakeroot-1.30.1/communicate.c.patch	2022-11-11 22:36:56.954338881 +0300
@@ -494,9 +494,9 @@
   }
 }
 
-void lock_comm_sd(void)
+int lock_comm_sd(void)
 {
-  pthread_mutex_lock(&comm_sd_mutex);
+  return pthread_mutex_trylock(&comm_sd_mutex);
 }
 
 void unlock_comm_sd(void)
@@ -654,12 +654,12 @@
 
 void send_fakem(const struct fake_msg *buf)
 {
-  lock_comm_sd();
+  if (!lock_comm_sd()) {
+    open_comm_sd();
+    send_fakem_nr(buf);
 
-  open_comm_sd();
-  send_fakem_nr(buf);
-
-  unlock_comm_sd();
+    unlock_comm_sd();
+  }
 }
 
 static void get_fakem_nr(struct fake_msg *buf)
@@ -694,13 +694,13 @@
 
 void send_get_fakem(struct fake_msg *buf)
 {
-  lock_comm_sd();
+  if (!lock_comm_sd()) {
+    open_comm_sd();
+    send_fakem_nr(buf);
+    get_fakem_nr(buf);
 
-  open_comm_sd();
-  send_fakem_nr(buf);
-  get_fakem_nr(buf);
-
-  unlock_comm_sd();
+    unlock_comm_sd();
+  }
 }
 
 #endif /* FAKEROOT_FAKENET */