On my Odroid HC1 running the 4.19 kernel, I see in the logwatch email:

--------------------- Kernel Begin ------------------------

WARNING:  Kernel Errors Present     WARNING: CPU(s) started in wrong/inconsistent mo ...:  3 Time(s)     [drm:exynos_drm_bind [exynosdrm]] *ERROR* no device found ...: 3 Time(s)

---------------------- Kernel End -------------------------

Greping in messages I found:

Dec 31 19:00:05 hc1-c7 kernel: CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x1a) Dec 31 19:00:06 hc1-c7 kernel: CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x1a) Dec 31 19:00:06 hc1-c7 kernel: CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x1a) Dec 31 19:00:05 hc1-c7 kernel: CPU: WARNING: CPU(s) started in wrong/inconsistent modes (primary CPU mode 0x1a)

and

Dec 31 19:00:07 hc1-c7 kernel: [drm:exynos_drm_bind [exynosdrm]] *ERROR* no device found for DMA mapping operations. Dec 31 19:00:07 hc1-c7 kernel: [drm:exynos_drm_bind [exynosdrm]] *ERROR* no device found for DMA mapping operations. Dec 31 19:00:08 hc1-c7 kernel: [drm:exynos_drm_bind [exynosdrm]] *ERROR* no device found for DMA mapping operations. Dec 31 19:00:07 hc1-c7 kernel: [drm:exynos_drm_bind [exynosdrm]] *ERROR* no device found for DMA mapping operations.

Anything to do about these?

thanks