[U-Boot] [BUG] qemu-x86_64_defconfig fails with panic("TSC frequency is ZERO");

[Bin Meng]

Hi Heinrich,

On Thu, May 17, 2018 at 11:51 PM, Heinrich Schuchardt
<xypron.glpk at gmx.de> wrote:
> Hello Bin, Simon,
>
> sometimes qemu-x86_64_defconfig fails with panic("TSC frequency is
> ZERO") in drivers/timer/tsc_timer.c.
>
> The system may hang in an endless reboot loop with this error or recover
> after reboot.
>
> Do we need to panic? Or could we use some default value?
>
> Qemu version used for testing: 2.8.1.
>

Sorry I missed this. It seems that the TSC calibration is unstable on
QEMU. I see this sometimes with '-nographic' but sometimes with
'graphic' too. I will take a look.

Regards,
Bin