linux-kernel - Re: [2.6.31-git17] WARNING: at kernel/hrtimer.c:648 hres_timers_resume+0x40/0x50()/WARNING: at drivers/base/sys.c:353 __sysdev

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Message-ID: <2674af740909300127k255715d8se1c267089ed9283a@mail.gmail.com>
Date:	Wed, 30 Sep 2009 16:27:42 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	Michal Schmidt <mschmidt@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, clemens@...isch.de,
	venkatesh.pallipadi@...el.com, gregkh@...e.de
Subject: Re: [2.6.31-git17] WARNING: at kernel/hrtimer.c:648 
	hres_timers_resume+0x40/0x50()/WARNING: at drivers/base/sys.c:353 
	__sysdev_resume+0xc3/0xe0()

On Wed, Sep 30, 2009 at 4:20 PM, Michal Schmidt <mschmidt@...hat.com> wrote:
> Dne Wed, 30 Sep 2009 16:01:40 +0800
> Yong Zhang <yong.zhang0@...il.com> napsal(a):
>> From my previous mail, I have ask Maciej to test the blow patch:
>> diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
>> index fb0f46f..4a00a1a 100644
>> --- a/kernel/time/timekeeping.c
>> +++ b/kernel/time/timekeeping.c
>> @@ -569,6 +569,9 @@ static int timekeeping_resume(struct sys_device
>> *dev) unsigned long flags;
>>        struct timespec ts;
>>
>> +       WARN_ONCE(!irqs_disabled(),
>> +               KERN_INFO "timekeeping_resume() called with IRQs
>> enabled!"); +
>>        read_persistent_clock(&ts);
>>
>>        clocksource_resume();
>>
>> And indeed, the warning is showed.
>
> Is it? After Maciej tested it, he said:
>> no "timekeeping_resume() called with IRQs enabled!".
> which I read as: no such message was shown.
>

Just check again.
OMG, I'm blind for so long time.
Yeah, it seem like 89133f9 fix this issue.
Sorry again.

Thanks,
Yong

> Michal
>
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