On Fri, 28 Jul 2000, Agust Karlsson wrote:
> In my BIOS there is a specialised interrupt handler in Int 0x1C
> I need to know if linux overrides that interrupt or mengels with it somehow.
> There is a external watchdog on my system and it gets triggered in that
> interrupt.
>
Linux does NOT provide any PC-BIOS interrupts of any kind. Linux uses the
BIOS only for booting, after which it does everything for itself.
If you have a watchdog timer running off an interrupt, that software
is broken and broken in the worse way.
Yes you CAN disable the watchdog. It is disabled automatically when
a reset occurs. Patch your bad BIOS that accesses the timer. If
it is never accessed, it will never time-out and therefore it will
never reboot the machine.
Cheers,
Dick Johnson
Penguin : Linux version 2.2.15 on an i686 machine (797.90 BogoMips).
"Memory is like gasoline. You use it up when you are running. Of
course you get it all back when you reboot..."; Actual explanation
obtained from the Micro$oft help desk.
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This archive was generated by hypermail 2b29 : Mon Jul 31 2000 - 21:00:27 EST