Explore the current state and future potential of kernel testing systems in this DevConf.CZ 2023 conference talk. Delve into the challenges faced by existing kernel-testing frameworks such as 0day, Syzbot, KernelCI, LKFT, and CKI. Examine the reasons behind their limited impact and uneven adoption, including the rarity of test requirements and pre-merge CI practices. Analyze the chicken-and-egg problem of unreliable results hindering widespread use while also impeding improvement. Discover potential solutions to enhance kernel testing effectiveness and reliability. Learn about the KCIDB project developed by Linux Foundation's KernelCI, which aggregates data from various testing systems to create unified dashboards and a notification system for developers. Gain insights into upcoming ideas and innovations aimed at improving the testing landscape for kernel development.