On Mon, 2006-07-31 at 21:41 -0400, Amos Waterland wrote:
> diff -r 17aa29a18b08 drivers/xen/console/console.c
> --- a/drivers/xen/console/console.c Thu Jul 27 18:57:20 2006 -0400
> +++ b/drivers/xen/console/console.c Mon Jul 31 21:04:17 2006 -0400
> @@ -70,6 +70,7 @@
> */
> static enum { XC_OFF, XC_DEFAULT, XC_TTY, XC_SERIAL } xc_mode = XC_DEFAULT;
> static int xc_num = -1;
> +enum { XC_NUM_MAX = 8 };
>
> #ifdef CONFIG_MAGIC_SYSRQ
> static unsigned long sysrq_requested;
> @@ -576,6 +577,7 @@ static int __init xencons_init(void)
>
> xencons_ring_init();
>
> +retry:
> xencons_driver = alloc_tty_driver((xc_mode == XC_SERIAL) ?
> 1 : MAX_NR_CONSOLES);
> if (xencons_driver == NULL)
> @@ -612,6 +614,15 @@ static int __init xencons_init(void)
> DRV(xencons_driver)->name_base);
> put_tty_driver(xencons_driver);
> xencons_driver = NULL;
> +
> + /* Somebody, almost certainly the real serial port
> + driver, registered ahead of us, so find the first
> + unused minor. */
> + if (xc_num <= XC_NUM_MAX) {
> + xc_num++;
> + goto retry;
> + }
> +
> return rc;
> }
>
I don't understand why you're doing this. The solution is for the
console driver to use a new major number.
--
Hollis Blanchard
IBM Linux Technology Center
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