Re: EPIA-M HW graphics slow under linuxbios

[Dave Ashley]

> I did what you said...
> ...
> Jumping to boot code at 0x106710
> 0

I think this is a divide by zero error when it tries to jump into the
etherboot payload. Etherboot has a bug which I've mentioned before. It
tries to use some timer machinery before it has been initialized.
Edit src/timer.c of etherboot, in the function currticks you want:
diff -Nur etherboot-5.0.10/src/timer.c etherboot-5.0.10-new/src/timer.c
--- etherboot-5.0.10/src/timer.c	Sat Mar 22 11:52:25 2003
+++ etherboot-5.0.10-new/src/timer.c	Wed Jul 16 09:45:46 2003
@@ -138,6 +138,8 @@
 {
    unsigned long clocks_high, clocks_low;
    unsigned long currticks;
+
+setup_timers();
    /* Read the Time Stamp Counter */
    rdtsc(clocks_low, clocks_high);

BTW if this fixed your problem I'm a miracle worker.

-Dave

EPIA-M HW graphics slow under linuxbios

[Dmitry Borisov]

Hmm,
I don't have etherboot. I use filo-0.4.1. I wasn't able to use etherboot
correctly with my system( IDE flash drives ), so I switched to filo...
Dmitry/

----- Original Message ----- 
From: "Dave Ashley" 
To: 
Sent: Thursday, January 29, 2004 4:15 PM
Subject: Re: EPIA-M HW graphics slow under linuxbios
> > I did what you said...
> > ...
> > Jumping to boot code at 0x106710
> > 0
>
> I think this is a divide by zero error when it tries to jump into the
> etherboot payload. Etherboot has a bug which I've mentioned before. It
> tries to use some timer machinery before it has been initialized.
> Edit src/timer.c of etherboot, in the function currticks you want:
> diff -Nur etherboot-5.0.10/src/timer.c etherboot-5.0.10-new/src/timer.c
> --- etherboot-5.0.10/src/timer.c Sat Mar 22 11:52:25 2003
> +++ etherboot-5.0.10-new/src/timer.c Wed Jul 16 09:45:46 2003
> @@ -138,6 +138,8 @@
>  {
>   unsigned long clocks_high, clocks_low;
>   unsigned long currticks;
>
> +setup_timers();
>   /* Read the Time Stamp Counter */
>   rdtsc(clocks_low, clocks_high);
>
> BTW if this fixed your problem I'm a miracle worker.
>
> -Dave
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