On Friday 27 May 2016 12:01:21 Thorsten Leemhuis wrote: > Pali Rohár wrote on 27.05.2016 11:47: > > […] > > I do not see any long taking SMM call here. Are you really sure > > that your machine freeze when loading or using dell-smm-hwmon? > > Uhh, sorry, it seems something got mixed up somewhere. As mentioned > earlier in this thread already: The Studio XPS 8000 I have here never > froze when loading or using dell-smm-hwmon. I only saw its CPU fan > speed going up and down as described in > https://bugzilla.kernel.org/show_bug.cgi?id=100121 From the mail that > started this thread I got the impression that all those problems are > all related somehow, so I went testing the patch as asked.
Looks like there are two different problems with dell-smm-hwmon driver: 1) Fan speed going randomly up and down without system freeze 2) System freeze at boot time and at that time fan speed goes up I though that problem with fan speed is SMM freeze, but from your log I see that it is not truth. And my patch seems to fix problem 2). So for problem 1) I need to know: * Is it regression? I.e. is there kernel version under which i8k (or dell-smm-hwmon) is working? * If it is regression, then I need somebody to fully fully bisect problematic commit. And then starts reverting it on top of new kernel versions (to check that only that commit cause problem 1)). -- Pali Rohár pali.ro...@gmail.com
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