linux-kernel - [PATCH] watchdog: Reduce message verbosity

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Date:   Mon, 30 Jul 2018 12:09:47 -0700
From:   Sinan Kaya <okaya@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Sinan Kaya <okaya@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Don Zickus <dzickus@...hat.com>,
        Ingo Molnar <mingo@...nel.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Colin Ian King <colin.king@...onical.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH] watchdog: Reduce message verbosity

Reducing the verbosity level to debug for people that are interested in
debugging watchdog issues.

[    0.152492] NMI watchdog: Perf event create on CPU 0 failed with -2
[    0.156002] NMI watchdog: Perf NMI watchdog permanently disabled

Signed-off-by: Sinan Kaya <okaya@...nel.org>
---
 kernel/watchdog_hld.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index e449a23e9d59..1f7020d65d0a 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -175,8 +175,8 @@ static int hardlockup_detector_event_create(void)
 	evt = perf_event_create_kernel_counter(wd_attr, cpu, NULL,
 					       watchdog_overflow_callback, NULL);
 	if (IS_ERR(evt)) {
-		pr_info("Perf event create on CPU %d failed with %ld\n", cpu,
-			PTR_ERR(evt));
+		pr_debug("Perf event create on CPU %d failed with %ld\n", cpu,
+			 PTR_ERR(evt));
 		return PTR_ERR(evt);
 	}
 	this_cpu_write(watchdog_ev, evt);
-- 
2.17.1