From: Juri Lelli <juri.lelli@redhat.com>
To: luca abeni <luca.abeni@santannapisa.it>
Cc: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Vineeth Pillai <vineeth@bitbyteword.org>
Subject: Re: SCHED_DEADLINE tasks missing their deadline with SCHED_FLAG_RECLAIM jobs in the mix (using GRUB)
Date: Wed, 25 Jun 2025 12:11:46 +0200 [thread overview]
Message-ID: <aFvLYv0xSXxoyZZ8@jlelli-thinkpadt14gen4.remote.csb> (raw)
In-Reply-To: <aFvBvxhw6ubpBefm@jlelli-thinkpadt14gen4.remote.csb>
On 25/06/25 11:30, Juri Lelli wrote:
...
> It looks like (at least at my end) it comes from
>
> task_non_contending()
> sub_running_bw()
> __sub_running_bw()
> WARN_ON_ONCE(dl_rq->running_bw > old); /* underflow */
>
> I would guess the later initialization of dl-server is not playing well
> wrt running_bw. Will take a look.
I pushed another fixup adding a check for dl_server_active in
dl_server_stop(). It seems to cure the WARN here.
Could you please pull and re-test?
next prev parent reply other threads:[~2025-06-25 10:11 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-28 18:04 Marcel Ziswiler
2025-05-02 13:55 ` Juri Lelli
2025-05-02 14:10 ` luca abeni
2025-05-03 13:14 ` Marcel Ziswiler
2025-05-05 15:53 ` luca abeni
2025-05-03 11:14 ` Marcel Ziswiler
2025-05-07 20:25 ` luca abeni
2025-05-19 13:32 ` Marcel Ziswiler
2025-05-20 16:09 ` luca abeni
2025-05-21 9:59 ` Marcel Ziswiler
2025-05-23 19:46 ` luca abeni
2025-05-25 19:29 ` Marcel Ziswiler
2025-05-29 9:39 ` Juri Lelli
2025-06-02 14:59 ` Marcel Ziswiler
2025-06-17 12:21 ` Juri Lelli
2025-06-18 11:24 ` Marcel Ziswiler
2025-06-20 9:29 ` Juri Lelli
2025-06-20 9:37 ` luca abeni
2025-06-20 9:58 ` Juri Lelli
2025-06-20 14:16 ` luca abeni
2025-06-20 15:28 ` Juri Lelli
2025-06-20 16:52 ` luca abeni
2025-06-24 7:49 ` Juri Lelli
2025-06-24 12:59 ` Juri Lelli
2025-06-24 15:00 ` luca abeni
2025-06-25 9:30 ` Juri Lelli
2025-06-25 10:11 ` Juri Lelli [this message]
2025-06-25 12:50 ` luca abeni
2025-06-26 10:59 ` Marcel Ziswiler
2025-06-26 11:45 ` Juri Lelli
2025-06-25 15:55 ` Marcel Ziswiler
2025-06-24 13:36 ` luca abeni
2025-05-30 9:21 ` luca abeni
2025-06-03 11:18 ` Marcel Ziswiler
2025-06-06 13:16 ` luca abeni
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