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

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Message-ID: <42d5e1e1-f418-46a3-9b80-67173609d390@intel.com>
Date: Thu, 10 Jul 2025 19:31:48 +0800
From: "Chen, Yu C" <yu.c.chen@...el.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
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 7/10/2025 6:47 PM, Sebastian Andrzej Siewior wrote:
> 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…
> 

No worries! Thanks for the patch. Glad it’s sorted.

thanks,
Chenyu>> thanks,
>> Chenyu>> Thanks,
> Sebastian