From: Dmitry Safonov <dima@xxxxxxxxxx> Subject: sysrq: use show_stack_loglvl() Show the stack trace on a CPU with the same log level as "CPU%d" header. Link: http://lkml.kernel.org/r/20200418201944.482088-45-dima@xxxxxxxxxx Signed-off-by: Dmitry Safonov <dima@xxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Jiri Slaby <jslaby@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/tty/sysrq.c | 2 +- include/linux/sched/debug.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) --- a/drivers/tty/sysrq.c~sysrq-use-show_stack_loglvl +++ a/drivers/tty/sysrq.c @@ -235,7 +235,7 @@ static void showacpu(void *dummy) raw_spin_lock_irqsave(&show_lock, flags); pr_info("CPU%d:\n", smp_processor_id()); - show_stack(NULL, NULL); + show_stack_loglvl(NULL, NULL, KERN_INFO); raw_spin_unlock_irqrestore(&show_lock, flags); } --- a/include/linux/sched/debug.h~sysrq-use-show_stack_loglvl +++ a/include/linux/sched/debug.h @@ -31,6 +31,8 @@ extern void show_regs(struct pt_regs *); * trace (or NULL if the entire call-chain of the task should be shown). */ extern void show_stack(struct task_struct *task, unsigned long *sp); +extern void show_stack_loglvl(struct task_struct *task, unsigned long *sp, + const char *loglvl); extern void sched_show_task(struct task_struct *p); _
