diff --git a/app/src/main/java/com/topjohnwu/magisk/core/su/SuRequestHandler.kt b/app/src/main/java/com/topjohnwu/magisk/core/su/SuRequestHandler.kt
index c25b1ebdb..afa090c9a 100644
--- a/app/src/main/java/com/topjohnwu/magisk/core/su/SuRequestHandler.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/core/su/SuRequestHandler.kt
@@ -58,6 +58,7 @@ class SuRequestHandler(
         val pid = intent.getIntExtra("pid", -1)
         val fifo = intent.getStringExtra("fifo")
         if (uid <= 0 || pid <= 0 || fifo == null) {
+            Timber.e("Unexpected extras: uid=[${uid}], pid=[${pid}], fifo=[${fifo}]")
             return false
         }
         output = File(fifo)
@@ -73,7 +74,11 @@ class SuRequestHandler(
             respond(SuPolicy.DENY, -1)
             return false
         }
-        return output.canWrite()
+        if (!output.canWrite()) {
+            Timber.e("Cannot write to $output")
+            return false
+        }
+        return true
     }
 
     suspend fun respond(action: Int, time: Int) {
diff --git a/native/src/core/su/su_daemon.cpp b/native/src/core/su/su_daemon.cpp
index 75fd1778d..8f40d9527 100644
--- a/native/src/core/su/su_daemon.cpp
+++ b/native/src/core/su/su_daemon.cpp
@@ -165,8 +165,6 @@ void prune_su_access() {
 }
 
 static shared_ptr<su_info> get_su_info(unsigned uid) {
-    LOGD("su: request from uid=[%d]\n", uid);
-
     if (uid == AID_ROOT) {
         auto info = make_shared<su_info>(uid);
         info->access = SILENT_SU_ACCESS;
@@ -252,7 +250,7 @@ static void set_identity(uid_t uid, const std::vector<uid_t> &groups) {
 }
 
 void su_daemon_handler(int client, const sock_cred *cred) {
-    LOGD("su: request from pid=[%d], client=[%d]\n", cred->pid, client);
+    LOGD("su: request from uid=[%d], pid=[%d], client=[%d]\n", cred->uid, cred->pid, client);
 
     su_context ctx = {
         .info = get_su_info(cred->uid),