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From: Mingcong Bai <jeffbai@aosc.io>
To: Frederic Weisbecker <frederic@kernel.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
	Thorsten Leemhuis <regressions@leemhuis.info>,
	Linux regressions mailing list <regressions@lists.linux.dev>,
	LKML <linux-kernel@vger.kernel.org>, rcu <rcu@vger.kernel.org>,
	sakiiily@aosc.io, Kexy Biscuit <kexybiscuit@aosc.io>
Subject: Re: [Regression] wifi problems since tg3 started throwing rcu stall warnings
Date: Fri, 15 Nov 2024 11:01:25 +0800	[thread overview]
Message-ID: <720576d090304a33b7d9ba3348056717@aosc.io> (raw)
In-Reply-To: <ZzNPIOR8aaxfrLE2@localhost.localdomain>

[-- Attachment #1: Type: text/plain, Size: 659 bytes --]

Hi Frederic,

<snip>

> Just in case, Mingcong Bai can you test the following patch without the
> revert and see if it triggers something?
> 
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index 35949ec1f935..b4f8ed8138d3 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
> @@ -5170,6 +5170,7 @@ void rcutree_migrate_callbacks(int cpu)
>  	struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);
>  	bool needwake;
> 
> +	WARN_ON_ONCE(1);
>  	if (rcu_rdp_is_offloaded(rdp))
>  		return;
> 

Please find attached the dmesg with your patch (and no revert) against 
6.12-rc7.

Best Regards,
Mingcong Bai

> 
> 
> Thanks.
> 
>> 
>> 							Thanx, Paul

[-- Attachment #2: dmesg-tg3-warn-on-once.log --]
[-- Type: application/json, Size: 150070 bytes --]

  reply	other threads:[~2024-11-15  3:01 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-23  8:27 Linux regression tracking (Thorsten Leemhuis)
2024-10-23  9:11 ` Linux regression tracking (Thorsten Leemhuis)
2024-10-23 10:09 ` Frederic Weisbecker
2024-10-23 10:22   ` Linux regression tracking (Thorsten Leemhuis)
2024-11-05  7:17     ` Mingcong Bai
2024-11-07  9:10       ` Thorsten Leemhuis
2024-11-07 10:04         ` Frederic Weisbecker
2024-11-07 10:33           ` Mingcong Bai
2024-11-07 16:29           ` Mingcong Bai
2024-11-08 13:46             ` Frederic Weisbecker
2024-11-08 15:14               ` Paul E. McKenney
2024-11-12 12:50                 ` Frederic Weisbecker
2024-11-15  3:01                   ` Mingcong Bai [this message]
2024-11-19 10:43                     ` Frederic Weisbecker

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