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