linux-kernel - Re: [tip:sched/core] [sched/smp] 06ddd17521: BUG:using_smp_processor_id()in

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Message-ID: <20250710104740.XLv9MRX1@linutronix.de>
Date: Thu, 10 Jul 2025 12:47:40 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: "Chen, Yu C" <yu.c.chen@...el.com>
Cc: kernel test robot <oliver.sang@...el.com>,
	Ingo Molnar <mingo@...nel.org>, oe-lkp@...ts.linux.dev,
	lkp@...el.com, linux-kernel@...r.kernel.org, x86@...nel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>,
	Shrikanth Hegde <sshegde@...ux.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Valentin Schneider <vschneid@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	aubrey.li@...ux.intel.com
Subject: Re: [tip:sched/core] [sched/smp] 06ddd17521:
 BUG:using_smp_processor_id()in_preemptible

On 2025-07-10 16:29:51 [+0800], Chen, Yu C wrote:
> I see. So there is still a CONFIG_SMP to check migrate_disbled
> in debug_smp_processor_id(), and that was skipped if we do not
> have CONFIG_SMP set.

Exactly, sorry for that.
I planned to let you do the figuring out and sending the patch but got
confused midway, had to look it up and then had the patch ready and
decided to send it…

> thanks,
> Chenyu>> Thanks,
Sebastian