linux-kernel - Re: [v6.12] WARNING: at kernel/sched/deadline.c:1995 enqueue_dl_entity (task blocked for more than 28262 seconds)

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Message-ID: <CAO7JXPjGFmfwAVcSaRhtM2Mf=V9P6oQm6H=QfHcFhtkLU8magQ@mail.gmail.com>
Date: Mon, 9 Dec 2024 21:58:55 -0500
From: Vineeth Remanan Pillai <vineeth@...byteword.org>
To: Ilya Maximets <i.maximets@....org>
Cc: Peter Zijlstra <peterz@...radead.org>, Joel Fernandes <joel@...lfernandes.org>, 
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>, 
	Juri Lelli <juri.lelli@...hat.com>, Vincent Guittot <vincent.guittot@...aro.org>, vineethrp@...gle.com, 
	shraash@...gle.com, marcel.ziswiler@...ethink.co.uk
Subject: Re: [v6.12] WARNING: at kernel/sched/deadline.c:1995
 enqueue_dl_entity (task blocked for more than 28262 seconds)

> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index fbdca89c677f..1f4b76c1f032 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -1159,8 +1159,6 @@ static inline void update_curr_task(struct
> task_struct *p, s64 delta_exec)
>         trace_sched_stat_runtime(p, delta_exec);
>         account_group_exec_runtime(p, delta_exec);
>         cgroup_account_cputime(p, delta_exec);
> -       if (p->dl_server)
> -               dl_server_update(p->dl_server, delta_exec);
>  }
>
>  static inline bool did_preempt_short(struct cfs_rq *cfs_rq, struct
> sched_entity *curr)
> @@ -1210,6 +1208,11 @@ s64 update_curr_common(struct rq *rq)
>         return delta_exec;
>  }
>
> +static inline bool dl_server_active(struct dl_sched_entity *dl_se)
Sorry a small typo in here. it should be struct sched_dl_entity and
not dl_sched_entity. The line should be:

"static inline bool dl_server_active(struct sched_dl_entity *dl_se)"


Thanks,
Vineeth