Re: 2.4.5-ac9 console NULL pointer pointer dereference

[Olaf Hering]

On Thu, Jun 07, [e-mail] wrote:

>     From: Olaf Hering <[e-mail]>
> 
>     this happend with 2.4.5-ac9 with serial console on i386.
> 
>     Unable to handle kernel NULL pointer dereference0x02f8 (irq = 3) at virtual address 00000004
>     Oops: 0000
>     >>EIP; c01967c7 <poke_blanked_console+1b/5c>   <=====
> 
> Sounds like this should help:
> 
> --- console.c~  Fri Feb  9 20:30:22 2001
> +++ console.c   Thu Jun  7 16:28:59 2001
> @@ -2684,7 +2684,7 @@
>  void poke_blanked_console(void)
>  {
>         del_timer(&console_timer);      /* Can't use _sync here: called from tasklet */
> -       if (vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
> +       if (!vt_cons[fg_console] || vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
>                 return;
>         if (console_blanked) {
>                 console_timer.function = unblank_screen_t;

That was ok, but:
....
INIT: Id "1" respawning too fast: disabled for 5 minutes
INIT: Id "2" respawning too fast: disabled for 5 minutes
INIT: Id "3" respawning too fast: disabled for 5 minutes
INIT: Id "5" respawning too fast: disabled for 5 minutes
INIT: Id "6" respawning too fast: disabled for 5 minutes
INIT: Id "4" respawning too fast: disabled for 5 minutes

Welcome to SuSE Linux 7.2 (i386) - Kernel 2.4.5-ac9 (ttyS0).
....

Hmm, perhaps a config option...
So, lets try  usb printing now.

Gruss Olaf

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