Messages in this thread | | | Date | Mon, 7 Jan 2019 16:24:26 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: tsc: Fast TSC calibration failed with AMD B350M/Ryzen 3 2200G |
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Paul,
On Mon, 31 Dec 2018, Paul Menzel wrote:
> Linux 4.19.13 from Debian Sid/unstable logs the message below on the board MSI > MS-7A37/B350M MORTAR with the processor AMD Ryzen 3 2200G. > > As a result, the early time stamps do not seem to be working.
> > [ 0.000000] DMI: Micro-Star International Co., Ltd. MS-7A37/B350M MORTAR > > (MS-7A37), BIOS 1.I0 11/06/2018 > > [ 0.000000] tsc: Fast TSC calibration failed
And the further boot log says:
[ 0.036000] tsc: Unable to calibrate against PIT [ 0.036000] tsc: using HPET reference calibration [ 0.036000] tsc: Detected 3500.117 MHz processor
So the quick calibration in early boot fails because the PIT seems not to do what the kernel expects. Nothing we can cure :(
Thanks,
tglx
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