Module Name: src
Committed By: mrg
Date: Mon Feb 4 09:57:39 UTC 2019
Modified Files:
src/sys/arch/sparc/sparc: intr.c
Log Message:
print the cpu number for the mutex not held xcallintr debug message.
add a comment about why this case fires.
To generate a diff of this commit:
cvs rdiff -u -r1.119 -r1.120 src/sys/arch/sparc/sparc/intr.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sparc/sparc/intr.c
diff -u src/sys/arch/sparc/sparc/intr.c:1.119 src/sys/arch/sparc/sparc/intr.c:1.120
--- src/sys/arch/sparc/sparc/intr.c:1.119 Sat Dec 2 00:48:05 2017
+++ src/sys/arch/sparc/sparc/intr.c Mon Feb 4 09:57:39 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: intr.c,v 1.119 2017/12/02 00:48:05 macallan Exp $ */
+/* $NetBSD: intr.c,v 1.120 2019/02/04 09:57:39 mrg Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.119 2017/12/02 00:48:05 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.120 2019/02/04 09:57:39 mrg Exp $");
#include "opt_multiprocessor.h"
#include "opt_sparc_arch.h"
@@ -366,10 +366,14 @@ xcallintr(void *v)
if (v != xcallintr)
cpuinfo.ci_sintrcnt[13].ev_count++;
+ /*
+ * This happens when the remote CPU is slow at responding and the
+ * caller gave up, and has given up the mutex.
+ */
if (mutex_owned(&xpmsg_mutex) == 0) {
cpuinfo.ci_xpmsg_mutex_not_held.ev_count++;
#ifdef DEBUG
- printf("%s: mutex not held\n", __func__);
+ printf("%s: cpu%d mutex not held\n", __func__, cpu_number());
#endif
cpuinfo.msg.complete = 1;
kpreempt_enable();
