linux-kernel - Re: commit 894d1b3db41c leads to frequent hangs when booting

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Message-ID: <75a27bab5671c43d2be6a26ac23916b731204086.camel@web.de>
Date: Wed, 11 Dec 2024 23:46:26 +0100
From: Bert Karwatzki <spasswolf@....de>
To: jstultz@...gle.com
Cc: Metin.Kaya@....com, boqun.feng@...il.com, bsegall@...gle.com, 
	daniel.lezcano@...aro.org, dave@...olabs.net, dietmar.eggemann@....com, 
	joelaf@...gle.com, juri.lelli@...hat.com, kernel-team@...roid.com, 
	kprateek.nayak@....com, linux-kernel@...r.kernel.org, longman@...hat.com, 
	mgorman@...e.de, mingo@...hat.com, paulmck@...nel.org,
 peterz@...radead.org, 	qyousef@...alina.io, rostedt@...dmis.org,
 tglx@...utronix.de, 	vincent.guittot@...aro.org, vschneid@...hat.com,
 will@...nel.org, 	xuewen.yan94@...il.com, zezeozue@...gle.com,
 spasswolf@....de
Subject: Re: commit 894d1b3db41c leads to frequent hangs when booting

Am Mittwoch, dem 11.12.2024 um 22:35 +0100 schrieb Bert Karwatzki:
> I have confirmed that I that linux-next-20241210 is fixed by the same revert
> as v6.13-rc2 (ten boots without incident is the criterion for a good commit)
>
>
> Bert Karwatzki

Also this bug only occurs with CONFIG_PREEMPT_RT=y, I've just checked v6.13-rc2
without the revert and the following preempt settings and got 10 clean boots:


CONFIG_PREEMPT_BUILD=y
CONFIG_ARCH_HAS_PREEMPT_LAZY=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
# CONFIG_PREEMPT_LAZY is not set
# CONFIG_PREEMPT_RT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
CONFIG_SCHED_CORE=y

Bert Karwatzki