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Tue, 10 Dec 2024 01:52:46 -0800 (PST) From: Yunhui Cui To: akpm@linux-foundation.org, dianders@chromium.org, song@kernel.org, john.ogness@linutronix.de, liusong@linux.alibaba.com, joel.granados@kernel.org, yaoma@linux.alibaba.com, linux@weissschuh.net, linux-kernel@vger.kernel.org Cc: Yunhui Cui Subject: [PATCH] watchdog: output this_cpu when printing hard LOCKUP Date: Tue, 10 Dec 2024 17:52:38 +0800 Message-Id: <20241210095238.63444-1-cuiyunhui@bytedance.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When printing "Watchdog detected hard LOCKUP on cpu", also output the detecting CPU. It's more intuitive. Signed-off-by: Yunhui Cui Reviewed-by: Douglas Anderson --- kernel/watchdog.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 262691ba62b7a..718e8c6fbe277 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -190,7 +190,7 @@ void watchdog_hardlockup_check(unsigned int cpu, struct= pt_regs *regs) * with printk_cpu_sync_get_irqsave() that we can still at least * get the message about the lockup out. */ - pr_emerg("Watchdog detected hard LOCKUP on cpu %d\n", cpu); + pr_emerg("CPU%u: Watchdog detected hard LOCKUP on cpu %u\n", this_cpu, c= pu); printk_cpu_sync_get_irqsave(flags); =20 print_modules(); --=20 2.39.2