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Date: Wed, 2 Dec 2015 15:42:34 -0800 From: John Stultz <john.stultz@...aro.org> To: Andy Lutomirski <luto@...nel.org> Cc: "Brown, Len" <len.brown@...el.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>, "Hunter, Adrian" <adrian.hunter@...el.com> Subject: Re: Skylake (XPS 13 9350) TSC is way off On Wed, Dec 2, 2015 at 3:38 PM, John Stultz <john.stultz@...aro.org> wrote: > On Wed, Dec 2, 2015 at 3:25 PM, Andy Lutomirski <luto@...nel.org> wrote: >> In case it's at all useful, adjtimex -p says: >> >> mode: 0 >> offset: 0 >> frequency: 135641 >> maxerror: 37498 >> esterror: 1532 >> status: 8192 >> time_constant: 2 >> precision: 1 >> tolerance: 32768000 >> tick: 10000 >> raw time: 1449098317s 671243180us = 1449098317.671243180 >> >> this suggests a rather small correction, so I really have no idea what >> "Adjusting tsc more than 11% (8039115 vs 7759462)" means. >> >> John, you wrote this code. What does the error message mean? Also, is there a behavior issue you're seeing or is this just a concern about the warning? I assumed it was the first, but digging up the thread here I'm not sure I see any specific problems listed. thanks -john -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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