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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:

• prompt:
• type: int
• depends on: (none)
• defined in arch/sh64/Kconfig
• found in Linux kernels: 2.6.8–2.6.13

Help text

(none)

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

The configuration item CONFIG_LOG_BUF_SHIFT:

• prompt: Kernel log buffer size (16 => 64KB, 17 => 128KB)
• type: int
• depends on: (none)
• defined in init/Kconfig
• found in Linux kernels: 2.6.0–2.6.11, 2.6.22–2.6.39, 3.0–3.9, 3.10-rc+HEAD

Help text

Select kernel log buffer size as a power of 2. 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:

• prompt: Kernel log buffer size (16 => 64KB, 17 => 128KB)
• type: int
• depends on: ( CONFIG_DEBUG_KERNEL ) && ( CONFIG_S390 || CONFIG_LOCKDEP ) && ( CONFIG_X86_NUMAQ || CONFIG_IA64 ) && ( CONFIG_SMP )
• defined in lib/Kconfig.debug
• found in Linux kernels: 2.6.12–2.6.21

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

LKDDb

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Sources

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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