Re: [RFC] sched: show cpu number when sched_show_task

Phil Auld
2023-02-08T13:49:57Z

On Wed, Feb 08, 2023 at 08:46:55PM +0800 Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
>
> It would be helpful to show cpu number when dump task. Such as
> when doing system suspend, we could know the failed freezing
> process run on which cpu.
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> kernel/sched/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index daff72f00385..0c7a1b2f7baf 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -8876,7 +8876,7 @@ void sched_show_task(struct task_struct *p)
> if (!try_get_task_stack(p))
> return;
>
> - pr_info("task:%-15.15s state:%c", p->comm, task_state_to_char(p));
> + pr_info("task:%-15.15s state:%c cpu:0x%x", p->comm, task_state_to_char(p), task_cpu(p));
>
> if (task_is_running(p))
> pr_cont(" running task ");
> --
> 2.37.1
>

Looks useful, thanks.

Reviewed-by: Phil Auld <pauld@redhat.com>

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