Re: [PATCH] dell-smm-hwmon: Cache fan_type() calls and use fan_status() for fan detection

From: Pali RohÃr
Date: Thu May 26 2016 - 11:51:57 EST


On Thursday 26 May 2016 17:39:57 Thorsten Leemhuis wrote:
> > I need to know if this patch fixes problem on Dell Studio XPS 8000
> > and Dell Studio XPS 8100 machines, so we can revert git commits:
> > 6220f4ebd7b4 ("hwmon: (dell-smm) Blacklist Dell Studio XPS 8000")
> > a4b45b25f18d ("hwmon: (dell-smm) Blacklist Dell Studio XPS 8100")
>
> Just checked: Sorry, that patch did not fix the CPU fan speed issue
> on my XPS 8000, so there is afaics no reason to revert 6220f4ebd7b4
> :-/

Please, can you apply patch "dell-smm-hwmon: In debug mode log duration
of SMM calls" and compile dell-smm-hwmon in debug mode to tell us which
SMM call takes too long? This is probably they key for that XPS
problems...

--
Pali RohÃr
pali.rohar@xxxxxxxxx

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