The obvious solution struck me just after the last email. I change the config parameter to be an order, like the argument to get_free_pages(). How does this look? It's not tested, but there isn't much to it... robert
diff --exclude=*~ -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 14:10:12 2001 @@ -366,4 +366,5 @@ #bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC bool 'Magic SysRq key' CONFIG_MAGIC_SYSRQ +int 'Printk buffer size order 2**x' CONFIG_PRINTK_BUF_ORDER 14 endmenu diff --exclude=*~ -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 14:10:06 2001 @@ -23,7 +23,11 @@ #include <asm/uaccess.h> -#define LOG_BUF_LEN (16384) +#ifdef CONFIG_PRINTK_BUF_LEN +# define LOG_BUF_LEN (2**CONFIG_PRINTK_BUF_ORDER) +#else +# define LOG_BUF_LEN (16384) +#endif #define LOG_BUF_MASK (LOG_BUF_LEN-1) static char buf[1024];
