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From: Heiner Kallweit <hkallweit1@gmail.com>
To: Frederic Weisbecker <frederic@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Grygorii Strashko <grygorii.strashko@ti.com>
Subject: Re: Fix 80d20d35af1e ("nohz: Fix local_timer_softirq_pending()") may have revealed another problem
Date: Mon, 15 Oct 2018 22:58:54 +0200	[thread overview]
Message-ID: <c472b6bf-e4af-d807-e63f-75211ce295bd@gmail.com> (raw)
In-Reply-To: <20180928131855.GB8795@lerouge>

On 28.09.2018 15:18, Frederic Weisbecker wrote:
> On Thu, Sep 27, 2018 at 06:05:46PM +0200, Thomas Gleixner wrote:
>> On Tue, 28 Aug 2018, Frederic Weisbecker wrote:
>>> On Fri, Aug 24, 2018 at 07:06:32PM +0200, Heiner Kallweit wrote:
>>>> I tested it and Frederic is right, it doesn't help. Can it be somehow related to
>>>> the cpu being brought down during suspend? Because I get the warning only during
>>>> suspend when the cpu is inactive already (but still online).
>>>
>>> It's hard to tell, I haven't been able to reproduce on suspend to disk/mem.
>>>
>>> Does this script eventually trigger it after some time?
>>
>> Any update to this?
> 
> Heiner? Can you please test the script I sent to you?
> 
> Thanks.
> 
Sorry, took some time .. And yes, running your script triggers the message too.

[   25.646015] x86: Booting SMP configuration:
[   25.646044] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.664491] smpboot: CPU 1 is now offline
[   25.679299] x86: Booting SMP configuration:
[   25.679329] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.698449] smpboot: CPU 1 is now offline
[   25.711698] x86: Booting SMP configuration:
[   25.711727] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.729185] NOHZ: local_softirq_pending 202
[   25.729229] NOHZ: local_softirq_pending 202
[   25.730759] smpboot: CPU 1 is now offline
[   25.744053] x86: Booting SMP configuration:
[   25.744083] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.762520] smpboot: CPU 1 is now offline
[   25.776834] x86: Booting SMP configuration:
[   25.776863] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.794189] NOHZ: local_softirq_pending 202
[   25.796672] smpboot: CPU 1 is now offline
[   25.805970] x86: Booting SMP configuration:
[   25.805999] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.827360] smpboot: CPU 1 is now offline
[   25.839043] x86: Booting SMP configuration:
[   25.839073] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.858184] NOHZ: local_softirq_pending 202
[   25.862182] smpboot: CPU 1 is now offline
[   25.873759] x86: Booting SMP configuration:
[   25.873789] smpboot: Booting Node 0 Processor 1 APIC 0x2
[   25.893385] smpboot: CPU 1 is now offline


  parent reply	other threads:[~2018-10-15 20:59 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-16  6:13 Fix 80d20d35af1e ("nohz: Fix local_timer_softirq_pending()") may have revealed another problem Heiner Kallweit
2018-08-18 11:26 ` Thomas Gleixner
2018-08-18 22:34   ` Heiner Kallweit
2018-08-24  4:12 ` Frederic Weisbecker
2018-08-24  5:59   ` Heiner Kallweit
2018-08-24  8:01     ` Thomas Gleixner
2018-08-24 14:30       ` Frederic Weisbecker
2018-08-24 17:06         ` Heiner Kallweit
2018-08-28  2:25           ` Frederic Weisbecker
2018-09-27 16:05             ` Thomas Gleixner
2018-09-28 13:18               ` Frederic Weisbecker
2018-09-28 20:35                 ` Heiner Kallweit
2018-10-15 20:58                 ` Heiner Kallweit [this message]
2018-12-24 21:11                   ` Heiner Kallweit
2018-12-27  6:53                   ` Frederic Weisbecker
2018-12-27 23:11                     ` Heiner Kallweit
2018-12-28  1:31                       ` Frederic Weisbecker
2018-12-28  6:34                         ` Heiner Kallweit
2018-12-28  6:39                           ` Heiner Kallweit
2019-01-09 22:20                             ` Heiner Kallweit
2019-01-11 21:36                               ` Frederic Weisbecker
2019-01-16  6:24                       ` Frederic Weisbecker
2019-01-16 18:42                         ` Heiner Kallweit
2019-01-24 19:37                         ` Heiner Kallweit
2019-02-14 19:05                           ` Heiner Kallweit
2019-02-14 21:47                             ` Thomas Gleixner
2019-02-14 22:33                               ` Heiner Kallweit
2019-02-15  0:31                                 ` Frederic Weisbecker
2019-02-16  9:14                                   ` Heiner Kallweit

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