[PATCH] Set limits on CONFIG_LOG_BUF_SHIFT

From: bert hubert <ahu@ds9a.nl> Attached patch adds a range check to LOG_BUF_SHIFT and clarifies the configuration somewhat. I managed to build a non-booting kernel because I thought 64 was a nice power of two, which lead to the kernel blocking when it tried to actually use or allocate a 2^64 buffer.

[PATCH] Set limits on CONFIG_LOG_BUF_SHIFT
From: bert hubert <ahu@ds9a.nl> Attached patch adds a range check to LOG_BUF_SHIFT and clarifies the configuration somewhat. I managed to build a non-booting kernel because I thought 64 was a nice power of two, which lead to the kernel blocking when it tried to actually use or allocate a 2^64 buffer.
e46e0cf2 · Andrew Morton · Linus Torvalds · 90153a16 · e46e0cf2
Commit e46e0cf2 authored Jul 02, 2003 by Andrew Morton Committed by Linus Torvalds Jul 02, 2003
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init/Kconfig init/Kconfig +2 -1

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--- a/init/Kconfig
+++ b/init/Kconfig
@@ -93,7 +93,8 @@ config SYSCTL
 	  limited in memory.
 config LOG_BUF_SHIFT
-	int "Kernel log buffer size" if DEBUG_KERNEL
+	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
+	range 12 20
 	default 17 if ARCH_S390
 	default 16 if X86_NUMAQ || IA64
 	default 15 if SMP