From dc8b8ba82a33897cd5cf89a61f1b1599e9a30f8b Mon Sep 17 00:00:00 2001
From: Damien Zammit <damien@zamaudio.com>
Date: Fri, 29 Sep 2023 04:59:44 +0000
Subject: kdb: Add "show all runqs" debug command

Message-Id: <20230929045936.31535-1-damien@zamaudio.com>
---
 ddb/db_print.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'ddb/db_print.c')

diff --git a/ddb/db_print.c b/ddb/db_print.c
index 3fbafe74..89250f7b 100644
--- a/ddb/db_print.c
+++ b/ddb/db_print.c
@@ -39,6 +39,9 @@
 #include <kern/task.h>
 #include <kern/thread.h>
 #include <kern/queue.h>
+#include <kern/sched.h>
+#include <kern/processor.h>
+#include <kern/smp.h>
 #include <ipc/ipc_port.h>
 #include <ipc/ipc_space.h>
 
@@ -329,6 +332,30 @@ db_show_all_tasks(db_expr_t addr,
 	    }
 }
 
+static void showrq(run_queue_t rq)
+{
+	db_printf("count(%d) low(%d)\n", rq->count, rq->low);
+}
+
+/*ARGSUSED*/
+void
+db_show_all_runqs(
+	db_expr_t	addr,
+	boolean_t	have_addr,
+	db_expr_t	count,
+	const char *	modif)
+{
+	int i;
+
+	db_printf("Processor set runq:\t");
+	showrq(&default_pset.runq);
+	for (i = 0; i < smp_get_numcpus(); i++) {
+	    db_printf("Processor #%d runq:\t", i);
+	    showrq(&cpu_to_processor(i)->runq);
+	}
+	db_printf("Stuck threads:\t%d", stuck_count);
+}
+
 /*ARGSUSED*/
 void
 db_show_all_threads(
-- 
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