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: <20090930102037.55db07ed@hammerfall>
Date:	Wed, 30 Sep 2009 10:20:37 +0200
From:	Michal Schmidt <mschmidt@...hat.com>
To:	Yong Zhang <yong.zhang0@...il.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()

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.

Michal
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