Re: [PATCH 5/9] PM: suspend_block: Add debugfs file

Randy Dunlap
2010-04-26T13:28:02Z

On 04/25/10 23:24, Brian Swetland wrote:
> On Sun, Apr 25, 2010 at 12:53 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
>> On 04/25/10 11:15, Greg KH wrote:
>>> On Fri, Apr 23, 2010 at 01:58:53PM -0700, Randy Dunlap wrote:
>>>> On Thu, 22 Apr 2010 18:08:54 -0700 Arve Hj?nnev?g wrote:
>>>>
>>>>> Report active and inactive suspend blockers in
>>>>> /sys/kernel/debug/suspend_blockers.
>>>>
>>>>
>>>> This looks more like user interface information than it does debug information.
>>>> If that's correct, it shouldn't be in debugfs.
>>>
>>> It's debug-like information, and has more than one value per file, so
>>> debugfs seems like the proper place for it. I have no objection to it
>>> going there.
>>
>> I have no objection if it really is debug info, but I'm not convinced
>> of that yet.
>
> Our most common use of this information is to capture it in bugreports
> (along with process lists, system/radio logs, memory stats, etc) as
> one additional piece of data used to diagnose a misbehaving device
> (most commonly to answer the "why does the battery seem to be draining
> too quickly?" question).

OK, thanks for the info. Sounds good (i.e., it is debug info).

--
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***