--- zzzz-none-000/linux-4.1.38/kernel/panic.c	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/kernel/panic.c	2020-11-25 10:06:48.000000000 +0000
@@ -121,6 +121,18 @@
 	if (!crash_kexec_post_notifiers)
 		crash_kexec(NULL);
 
+#if defined(CONFIG_AVM_FASTIRQ)
+    /*--- der notifier will auch noch was dumpen! ---*/
+	atomic_notifier_call_chain(&panic_notifier_list, 0, buf);
+	kmsg_dump(KMSG_DUMP_PANIC);
+
+	/*
+	 * Note smp_send_stop is the usual smp shutdown function, which
+	 * unfortunately means it may not be hardened to work in a panic
+	 * situation.
+	 */
+	smp_send_stop();
+#else
 	/*
 	 * Note smp_send_stop is the usual smp shutdown function, which
 	 * unfortunately means it may not be hardened to work in a panic
@@ -135,6 +147,7 @@
 	atomic_notifier_call_chain(&panic_notifier_list, 0, buf);
 
 	kmsg_dump(KMSG_DUMP_PANIC);
+#endif/*--- #else ---*//*--- #if defined(CONFIG_AVM_FASTIRQ) ---*/
 
 	/*
 	 * If you doubt kdump always works fine in any situation,
@@ -143,7 +156,7 @@
 	 * Note: since some panic_notifiers can make crashed kernel
 	 * more unstable, it can increase risks of the kdump failure too.
 	 */
-	crash_kexec(NULL);
+		crash_kexec(NULL);
 
 	bust_spinlocks(0);