default or selected kernelversion does not have config value CONFIG_LOG_BUF_SHIFT.
Result is shown for kernelversion 5.4.123
Kernel log buffer size (16 => 64KB, 17 => 128KB)
configname: CONFIG_LOG_BUF_SHIFT
Linux Kernel Configuration
└─>Kernel log buffer size (16 => 64KB, 17 => 128KB)
In linux kernel since version 2.6.12
Select kernel log buffer size as a power of 2.
Defaults and Examples:
17 => 128 KB for S/390
16 => 64 KB for x86 NUMAQ or IA-64
15 => 32 KB for SMP
14 => 16 KB for uniprocessor
13 => 8 KB
12 => 4 KB
Defaults and Examples:
17 => 128 KB for S/390
16 => 64 KB for x86 NUMAQ or IA-64
15 => 32 KB for SMP
14 => 16 KB for uniprocessor
13 => 8 KB
12 => 4 KB