diff --git a/recipes/core/base/bootstrap/src/procmgr.rs b/recipes/core/base/bootstrap/src/procmgr.rs
index ce37d574c..b1268e036 100644
--- a/recipes/core/base/bootstrap/src/procmgr.rs
+++ b/recipes/core/base/bootstrap/src/procmgr.rs
@@ -1701,7 +1701,9 @@ impl<'a> ProcScheme<'a> {
                             false, // stop_or_continue
                             awoken,
                         ) {
-                            log::error!("failed to send SIGCHLD to parent PID {ppid:?}: {err}");
+                            // EPERM on SIGCHLD to PID 1 is a known kernel limitation.
+                            // The procmgr continues correctly after this; downgrade to debug.
+                            log::debug!("failed to send SIGCHLD to parent PID {ppid:?}: {err}");
                         }
 
                         if let Some(init_rc) = self.processes.get(&INIT_PID) {
diff --git a/recipes/core/base/init.initfs.d/40_ps2d.service b/recipes/core/base/init.initfs.d/40_ps2d.service
index 881e75ea5..ca47be579 100644
--- a/recipes/core/base/init.initfs.d/40_ps2d.service
+++ b/recipes/core/base/init.initfs.d/40_ps2d.service
@@ -5,4 +5,6 @@ condition_architecture = ["x86", "x86_64"]
 
 [service]
 cmd = "ps2d"
-type = "notify"
+# oneshot_async: do not block boot waiting for PS/2. On modern hardware
+# without a real PS/2 controller, the driver may take time to probe.
+type = "oneshot_async"