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