diff --git a/sys-apps/irqbalance/files/irqbalance.init.6 b/sys-apps/irqbalance/files/irqbalance.init.6
new file mode 100644
index 0000000000000..85b4542ebb751
--- /dev/null
+++ b/sys-apps/irqbalance/files/irqbalance.init.6
@@ -0,0 +1,22 @@
+#!/sbin/openrc-run
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License, v2 or later
+
+depend() {
+	need localmount
+	after bootmisc
+}
+
+command="/usr/sbin/irqbalance"
+command_args="${IRQBALANCE_OPTS}"
+
+start_pre() {
+	if grep -q MSI /proc/interrupts 2>/dev/null && \
+	test -z "$(find /sys/devices -type d -name msi_irqs 2>/dev/null)"; then
+		eerror "MSI interrupts found in /proc/interrupts but none found in sysfs."
+		eerror "You need to update your kernel."
+		return 1
+	fi
+
+	checkpath -q -d /run/${SVCNAME}
+}
diff --git a/sys-apps/irqbalance/irqbalance-1.9.5.ebuild b/sys-apps/irqbalance/irqbalance-1.9.5.ebuild
index baee28d3384a9..13299f86e3fcc 100644
--- a/sys-apps/irqbalance/irqbalance-1.9.5.ebuild
+++ b/sys-apps/irqbalance/irqbalance-1.9.5.ebuild
@@ -54,7 +54,7 @@ src_configure() {
 src_install() {
 	meson_src_install
 
-	newinitd "${FILESDIR}"/irqbalance.init.5 irqbalance
+	newinitd "${FILESDIR}"/irqbalance.init.6 irqbalance
 	newconfd "${FILESDIR}"/irqbalance.confd-2 irqbalance
 	udev_dorules misc/90-irqbalance.rules
 }