linux-kernel - Re: [PATCH 17/24] sched/fair: Implement delayed dequeue

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Message-ID: <20240830123458.3557-1-spasswolf@web.de>
Date: Fri, 30 Aug 2024 14:34:56 +0200
From: Bert Karwatzki <spasswolf@....de>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Bert Karwatzki <spasswolf@....de>,
	linux-kernel@...r.kernel.org,
	bsegall@...gle.com,
	dietmar.eggemann@....com,
	efault@....de,
	juri.lelli@...hat.com,
	kprateek.nayak@....com,
	mgorman@...e.de,
	mingo@...hat.com,
	rostedt@...dmis.org,
	tglx@...utronix.de,
	vincent.guittot@...aro.org,
	vschneid@...hat.com,
	wuyun.abel@...edance.com,
	youssefesmat@...omium.org
Subject: Re: [PATCH 17/24] sched/fair: Implement delayed dequeue

Since linux next-20240820 the following messages appears when booting:

[    T1] smp: Bringing up secondary CPUs ...
[    T1] smpboot: x86: Booting SMP configuration:
[    T1] .... node  #0, CPUs:        #2  #4  #6  #8 #10 #12 #14  #1
This is the line I'm concerend about:
[    T1] psi: inconsistent task state! task=61:cpuhp/3 cpu=0 psi_flags=4 clear=0 set=4
[    T1]   #3  #5  #7  #9 #11 #13 #15
[    T1] Spectre V2 : Update user space SMT mitigation: STIBP always-on
[    T1] smp: Brought up 1 node, 16 CPUs
[    T1] smpboot: Total of 16 processors activated (102216.16 BogoMIPS)

I bisected this to commit 152e11f6df29 ("sched/fair: Implement delayed dequeue").
Is this normal or is this something I should worry about?

Bert Karwatzki