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;
Andries
-
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