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From: Ammar Faizi <[email protected]>
To: Dietmar Eggemann <[email protected]>,
	Linux Kernel Mailing List <[email protected]>
Cc: Ben Segall <[email protected]>,
	Daniel Bristot de Oliveira <[email protected]>,
	GNU/Weeb Mailing List <[email protected]>,
	Ingo Molnar <[email protected]>,
	Juri Lelli <[email protected]>, Mel Gorman <[email protected]>,
	Peter Zijlstra <[email protected]>,
	Steven Rostedt <[email protected]>,
	Vincent Guittot <[email protected]>
Subject: Re: [Linux 5.18-rc1] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:3355 update_blocked_averages
Date: Fri, 15 Apr 2022 21:43:13 +0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On 4/14/22 4:38 PM, Dietmar Eggemann wrote:
> Looks like you saw the same issue which got fixed here:
> 
> https://lkml.kernel.org/r/[email protected]
> 
> So nothing to do with CFS BW control. It's triggered by a task with very
> low nice value and load_avg=1 during cfs_rq attach.

Yeah, it looks like I hit the same SCHED_WARN_ON() with what is explained
in that patch. As such, I assume it's fixed then. I didn't manage to
reproduce the bug, but I am moving on from this now.

Thanks for the update!

-- 
Ammar Faizi

  reply	other threads:[~2022-04-15 14:43 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-04  6:19 [Linux 5.18-rc1] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:3355 update_blocked_averages Ammar Faizi
2022-04-05 12:21 ` Dietmar Eggemann
2022-04-05 13:13   ` Ammar Faizi
2022-04-06 12:21     ` Dietmar Eggemann
2022-04-06 20:34       ` Ammar Faizi
2022-04-07 10:52         ` Dietmar Eggemann
2022-04-08  6:03           ` Ammar Faizi
2022-04-14  9:38             ` Dietmar Eggemann
2022-04-15 14:43               ` Ammar Faizi [this message]
2022-04-05 13:29   ` Ammar Faizi

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