linux-kernel - Re: BUG: sleeping function called from invalid context at include/linux/freezer.h:45

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Date:	Wed, 11 Jan 2012 09:57:15 +0900
From:	Kyungmin Park <kmpark@...radead.org>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Len Brown <len.brown@...el.com>, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: BUG: sleeping function called from invalid context at include/linux/freezer.h:45

On 1/10/12, Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com> wrote:
> On 01/10/2012 09:57 AM, Kyungmin Park wrote:
>
>> Dear all
>>
>> with the latest kernel. I got the below bug message.
>> It calls the sleep function. Does it intended operation?
>>
>> static inline bool try_to_freeze(void)
>> {
>>         might_sleep();
>>         if (likely(!freezing(current)))
>>                 return false;
>>         return __refrigerator(false);
>> }
>>
>> # poweroff
>> [    6.852523] BUG: sleeping function called from invalid context at
>> include/linux/freezer.h:45
>> [    6.859489] in_atomic(): 0, irqs_disabled(): 128, pid: 1, name: init
>> [    6.865846] [<c0013508>] (unwind_backtrace+0x0/0xec) from
>> [<c0010124>] (do_signal+0x88/0x588)
>> [    6.874337] [<c0010124>] (do_signal+0x88/0x588) from [<c001063c>]
>> (do_notify_resume+0x18/0x38)
>> [    6.882928] [<c001063c>] (do_notify_resume+0x18/0x38) from
>> [<c000dc18>] (work_pending+0x24/0x28)
>>
>
>
> You seem to be running on Arm architecture. Can you please try the patch
> at https://lkml.org/lkml/2011/8/25/231 ?

Thank you,
It's working and I read the all mails related with this issue. and
need to fix it at arm side.

I think some more codes from arm are needed to work it properly.

Thank you,
Kyungmin Park
>
> Regards,
> Srivatsa S. Bhat
> IBM Linux Technology Center
>
>
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