Hi, I'm running Linux Mint with kernel version 5.15.0-41-generic. I have installed the preempt RT kernel version 5.16.2 with patch-5.16.2-rt19 with the following options in the .config file: -Preemption model: Fully preemptive Kernel -Default CPUFreq governor: Performance -Kernel Frequency: 1000 HZ -Disabled HARD LOCKUPS and HUNG TASKS detection. (Until here it's my attempt to follow John Ogness steps to improve the preempt RT linux performance, found at: https://www.youtube.com/watch?v=NrjXEaTSyrw) -flag CONFIG_X86_X32: n -commented lines CONFIG_SYSTEM_REVOCATION_KEYS and CONFIG_SYSTEM_TRUSTED_KEYS. After I successfully installed the preempt RT kernel, I rebooted and tried to boot the RT Linux, but the system returned "Out of memory. Press any key to continue..." I've tried this solution: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1970402. With the exception that I haven't changed the COMPRESS param. Is there anything that I'm missing to set up? Also, can you recommend a safe kernel version candidate to RT patch that is close to my current generic kernel version (5.15.0-41-generic)? Finally, how can I remove a preempt RT kernel installation? --uname -a output-- Linux asturian-PC 5.15.0-41-generic #44-Ubuntu SMP Wed Jun 22 14:20:53 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux --Some processor info:-- Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 43 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Vendor ID: AuthenticAMD Model name: AMD Athlon 3000G with Radeon Vega Graphics CPU family: 23 Model: 24 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 Stepping: 1 Frequency boost: enabled CPU max MHz: 3500,0000 CPU min MHz: 1600,0000 --Motherboard-- Gigabyte A320M-S2H --Memory-- DDR4 8 GB
