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CONFIG_LOG_BUF_SHIFT: Kernel log buffer size (16 => 64KB, 17 => 128KB)

General informations

The Linux kernel configuration item CONFIG_LOG_BUF_SHIFT has multiple definitions:

found in arch/sh64/Kconfig

The configuration item CONFIG_LOG_BUF_SHIFT:

Help text

(none)

Kernel log buffer size (16 => 64KB, 17 => 128KB) found in init/Kconfig

The configuration item CONFIG_LOG_BUF_SHIFT:

Help text

Select the minimal kernel log buffer size as a power of 2. The final size is affected by LOG_CPU_MAX_BUF_SHIFT config parameter, see below. Any higher size also might be forced by "log_buf_len" boot parameter.

Examples: 17 => 128 KB 16 => 64 KB 15 => 32 KB 14 => 16 KB 13 => 8 KB 12 => 4 KB

Kernel log buffer size (16 => 64KB, 17 => 128KB) found in lib/Kconfig.debug

The configuration item CONFIG_LOG_BUF_SHIFT:

Help text

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

Hardware

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