linux-kernel - Re: [lkp] [rcu] a7410f28ce: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 0-... } 25089 jiffies s: 9 root: 0x1/.

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Message-ID: <20161129081827.sxehpqxmmolagga2@linutronix.de>
Date:   Tue, 29 Nov 2016 09:18:27 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Ye Xiaolong <xiaolong.ye@...el.com>
Cc:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: Re: [lkp] [rcu]  a7410f28ce: INFO: rcu_sched detected expedited
 stalls on CPUs/tasks: { 0-... } 25089 jiffies s: 9 root: 0x1/.

On 2016-11-29 01:34:57 [+0800], Ye Xiaolong wrote:
> Thanks for the explanation, we'll ignore this kind of reports. And sorry for
> the noise.

This is "special" because my patch enabled the "expedited" RCU on its
own. This kind of report against a network driver (for instance) would
probably mean a problem in the patch itself.

> Thanks,
> Xiaolong

Sebastian