diff --git a/runtime/linux/uprobes-inode.c b/runtime/linux/uprobes-inode.c
index b9604e638..0334a8a37 100644
--- a/runtime/linux/uprobes-inode.c
+++ b/runtime/linux/uprobes-inode.c
@@ -365,8 +365,14 @@ stapiu_target_unreg(struct stapiu_target *target)
        if (! target->inode)
                return;
        list_for_each_entry(c, &target->consumers, target_consumer) {
-               if (c->registered)
+               if (c->registered) {
+                       dbug_otf("unregistering (u%sprobe) inode-offset %lu:%p pidx %zu\n",
+                                c->return_p ? "ret" : "",
+                                (unsigned long) target->inode->i_ino,
+                                (void*) (uintptr_t) c->offset,
+                                c->probe->index);
                        stapiu_unregister(target->inode, c);
+               }
        }
 }

@@ -390,10 +396,17 @@ stapiu_target_reg(struct stapiu_target *target, struct task_struct* task)
                                         c->return_p ? "ret" : "", c->probe->index);
                                continue;
                        }
+                       dbug_otf("registering (u%sprobe) at inode %lu:%p pidx %zu\n",
+                                c->return_p ? "ret" : "",
+                                (unsigned long) target->inode->i_ino,
+                                (void*) (uintptr_t) c->offset, c->probe->index);
+
                        ret = stapiu_register(target->inode, c);
                        if (ret != 0)
-                               _stp_warn("probe %s inode-offset %p registration error (rc %d)",
-                                         c->probe->pp, (void*) (uintptr_t) c->offset, ret);
+                               _stp_error("probe %s inode-offset %lu:%p registration error (rc %d)",
+                                          c->probe->pp,
+                                          (unsigned long) target->inode->i_ino,
+                                          (void*) (uintptr_t) c->offset, ret);
                }
        }
        if (ret)