Commit fb39f98d authored Jul 01, 2015 by Ingo Molnar

printk: Increase maximum CONFIG_LOG_BUF_SHIFT from 21 to 25



So I tried to some kernel debugging that produced a ton of kernel messages
on a big box, and wanted to save them all: but CONFIG_LOG_BUF_SHIFT maxes
out at 21 (2 MB).

Increase it to 25 (32 MB).

This does not affect any existing config or defaults.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 407a2c72

init/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -820,7 +820,7 @@ config IKCONFIG_PROC

		config LOG_BUF_SHIFT
		int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
		range 12 21
		range 12 25
		default 17
		depends on PRINTK
		help

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