Hi all, I got reply from Dominik that he noticed dfps_data_mem (reserved in msm8994.dtsi) overlaps with the framebuffer region. I'll retest it next week, maybe removing it instead of cont_splash_mem fixes the reboot. He also noticed, that Linux doesn't reboot when loaded from uefi (his project [1]). Not sure if there is any difference. Kind regards, Petr [1] https://github.com/Dominduchami/Nexus5XPkg/
