Compaq OEM BIOS + Reboot linux

[benoit Bruckert]

Hi,
I installed Linux (Redhat 7.0 ) + Kernel 2.4.19 on a Compaq Deskpro DP6000 (6266MMX).
All is working well, but i have a trouble with warm boot (same as this url :
http://mail-index.netbsd.org/port-i386/2002/11/25/0012.html
)
I installed the latest version of lilo (but I don't think lilo is concerned).
I didn't find any fix about this trouble.
I tried to see kernel sources, and I'm quite sure that the BIOS call for reboot had something wrong. As it is binary datas, I don't know how to debug it !!
If someone knows a little about this Compaq BIOS (Compaq is now HP ???) , it would be helpfull.
regards
Benoit

[benoit Bruckert]

back to top,
In case somebody didn't see it the first time...
Benoit
__________

[Goran Koruga]

Hi.

Did you try passing reboot= kernel option ?

Available choices are :

warm
cold
bios
hard
smp

So reboot=warm etc.

Goran

[benoit Bruckert]

Yep, I tried them all without any result.
But I didn't know there were a smp one ?? what is this option ??

regards
Benoit

[Goran Koruga]

From the source code :

#ifdef CONFIG_SMP
case 's': /* "smp" reboot by executing reset on BSP or other CPU*/

G.

[Charles Harris]

Hi,

Just my two pennies:-

I've seen this happen with compaq laptops in particular, and its usually something to do with the power saving options in the bios. Either try and disable the power-save functions or obtain the kernel patch for ACPI, which sometime s solves the problem...

Cheers,


-ChaZ-

[benoit Bruckert]

hi,
Well, reboot=smp didn't change anything. Power save is already disabled...
I will look for if there's something into the kernel with APCI... May take some times ! I will try to enable the power save and add the apci functionnality ?
If someone has any other idea ??

thanks
Benoit

[benoit Bruckert]

Tried APCI just now and ..
no more successes !
Any Idea ?

[Charles Harris]

Hello again,

Hmmm. Try using the reboot=bios and noapic options at boot time, with all apic bios features turned off.


Hope it works!

Cheers,

-ChaZ-

[Charles Harris]

Hi,


Another thought..... I've seen various people on the web complain about this issue, most of them say it can be resolved by using one of the older 2.2 kernels - maybe worth a try also!!

Cheers,


-ChaZ-

[benoit Bruckert]

Hi,
I tried both without any more successes.
I could not got back to 2.2 kernel (I'm using some feature which exists only in 2.4).
But I will try to see if reboot can work with another kernel, and if it works, then I know there's a solution .
thanks for your help.
Benoit