Two cases that pissed me off recently: 1) dropping support of some Adaptec RAID cards in RHEL/Centos 8 with Linux 4.18. Like <= 5xxx series. Yeah, Adaptec 5x s

Two cases that pissed me off recently: 1) dropping support of some Adaptec RAID cards in RHEL/Centos 8 with Linux 4.18. Like <= 5xxx series. Yeah, Adaptec 5x series is old and weak performance, but perfectly fine and widespread SATA controller card for servers. Many storage-oriented servers don't need anything faster. 2) Radeon RX4xx RX5xx GPUs worked on kernel 4.19, but they don't work for many people on newer kernels such as 5.10 and higher. Lots of error messages in dmesg, lots of reporting on forums, no official guide as to how to fix that. Amdgpu driver is in state of being endlessly rewritten presumably due to shiny new GPU cards and cutting edge Linux can't work with older cards reliably anymore.