tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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watchdog: output this_cpu when printing hard LOCKUP

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>

authored by

Yunhui Cui and committed by
Andrew Morton 3c16fc0c b6ca5bbc

+1 -1
+1 -1
kernel/watchdog.c
··· 190 190 * with printk_cpu_sync_get_irqsave() that we can still at least 191 191 * get the message about the lockup out. 192 192 */ 193 - pr_emerg("Watchdog detected hard LOCKUP on cpu %d\n", cpu); 193 + pr_emerg("CPU%u: Watchdog detected hard LOCKUP on cpu %u\n", this_cpu, cpu); 194 194 printk_cpu_sync_get_irqsave(flags); 195 195 196 196 print_modules();