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watchdog: output this_cpu when printing hard LOCKUP

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When printing "Watchdog detected hard LOCKUP on cpu", also output the
detecting CPU.  It's more intuitive.

Link: https://lkml.kernel.org/r/20241210095238.63444-1-cuiyunhui@bytedance.com
Signed-off-by: Yunhui Cui <cuiyunhui@bytedance.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Cc: Bitao Hu <yaoma@linux.alibaba.com>
Cc: Joel Granados <joel.granados@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Liu Song <liusong@linux.alibaba.com>
Cc: Song Liu <song@kernel.org>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Yunhui Cui 2024-12-10 17:52:38 +08:00 committed by Andrew Morton
parent b4f014f9da
commit 04f910643d
1 changed files with 1 additions and 1 deletions
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2
kernel/watchdog.c
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@ -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, cpu);
printk_cpu_sync_get_irqsave(flags);
print_modules();