[Voyage-linux] [Fwd: [PATCH 01/11] hwmon: Fix negativetemperaturereadings in lm77 driver]

[Punky Tse]

I am looking at the patch that solve the long wait time problem.

-/* The hardware supports interrupt driven mode too, but I haven't
-   implemented that. */
-#define POLLED_MODE 1
-#define POLL_TIMEOUT (HZ)
+#define POLL_TIMEOUT (HZ/5)

Isn't the POLL_TIMEOUT too short after I applied the patch?  It is now 
1/5 of the original value.

Punky Tse wrote:
> Hi Beat,
>
> I encounter the same problem right now - temperature reading all 
> return zero values under high load.  And there are loads of i2c 
> timeout messages in /var/log/kern.log.  Sounds like the kernel is busy 
> to response i2c commands?
>
> - Punky
>
>
> Beat Meier wrote:
>> It seems that the problem of the timeouts occures when the cpu is 
>> heavy loaded.
>> I do a scp to 3 clients in the background in parallel endless and the 
>> problem is there.
>> At least the timeouts but not the bad value of the temp.
>>
>> Will investigate more ...
>>
>> Beat
>>
>>> On Wed, 2006-01-18 at 06:12 +0100, Michael Renzmann wrote:
>>>  
>>>
>>>> There have been some patches to the scx200_acb driver in the 
>>>> lm-sensors
>>>> mailing list recently, which are said to fix some bugs in the driver.
>>>> I'll give them a try (after backporting them to 2.4.x) and let you 
>>>> know
>>>> if that helped us.
>>>>   
>>>
>>> I'm getting old. I already applied these patches, so they didn't 
>>> help us
>>> with the problem.
>>>
>>> Could you please check what value POLL_TIMEOUT is set to in your 
>>> version
>>> of scx200_acb?
>>>
>>> Bye, Mike
>>>
>>>
>>>  
>>>
>>
>>
>> _______________________________________________
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>> Voyage-linux at list.voyage.hk
>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>
>


-- 
Regards,
Punky
P U N K N ! X . c o m
Technology + Lifestyle
(http://www.punknix.com)

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