diff -ru linux-2.4.2-pre4/arch/i386/config.in linux-2.4.2-pre4-logbuf/arch/i386/config.in
--- linux-2.4.2-pre4/arch/i386/config.in	Mon Jan  8 13:27:56 2001
+++ linux-2.4.2-pre4-logbuf/arch/i386/config.in	Tue Feb 20 12:10:19 2001
@@ -366,4 +366,5 @@
 
 #bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
 bool 'Magic SysRq key' CONFIG_MAGIC_SYSRQ
+int 'Printk buffer size (must be power of 2)' CONFIG_PRINTK_BUF_LEN 16384
 endmenu
Only in linux-2.4.2-pre4-logbuf/arch/i386: config.in~
Only in linux-2.4.2-pre4-logbuf/include: asm
Only in linux-2.4.2-pre4-logbuf/include/linux: autoconf.h
Only in linux-2.4.2-pre4-logbuf/include/linux: modules
diff -ru linux-2.4.2-pre4/kernel/printk.c linux-2.4.2-pre4-logbuf/kernel/printk.c
--- linux-2.4.2-pre4/kernel/printk.c	Tue Feb 20 11:56:31 2001
+++ linux-2.4.2-pre4-logbuf/kernel/printk.c	Tue Feb 20 11:59:35 2001
@@ -23,7 +23,11 @@
 
 #include <asm/uaccess.h>
 
-#define LOG_BUF_LEN	(16384)
+#ifdef CONFIG_PRINTK_BUF_LEN
+# define LOG_BUF_LEN   (CONFIG_PRINTK_BUF_LEN)
+#else
+# define LOG_BUF_LEN   (16384)
+#endif   
 #define LOG_BUF_MASK	(LOG_BUF_LEN-1)
 
 static char buf[1024];