On Fri, 12 May 2000, Warner Losh wrote:
> In message <[EMAIL PROTECTED]> FreeBSD MAIL writes:
> : Is this the kernel setting to dislable ctrl-alt-delete from resetting
> : a systtem? If so it seems to be broken in 4.0-RELEASE.
> : is there another way of doing this? remaping keyboard perhaps?
> :
> : # BROKEN_KEYBOARD_RESET disables the use of the keyboard controller to
> : # reset the CPU for reboot. This is needed on some systems with broken
> : # keyboard controllers.
>
> No. The hot key squence CAD will reboot the system. Or rather it
> will cause the init process to get a signal that causes it to reboot
> the system.
>
> BROKEN_KEYBOARD_RESET does something different. In the IBM PC and
> newer compatible machines, the keyboard controller part is connected
> to a lot of different things, including the reset line to the CPU.
> Generally one can get a fairly clean reset of the CPU by telling the
> keyboard controller micro controller to reset the CPU with a nice
> pulse downt he reset line. Some keyboard controllers didn't think
> this was important enough to get right, so they don't implement this
> proplerly. These controllers are generally on the 386 and 486 class
> of machines and some pentium laptops (exceptions to the rule exist)
> where the keyboard controller was still a 8042 microcontroller
> programmed to talk to the keyboard.
>
Since this has been brought up, any reason that BROKEN_KEYBOARD_RESET is
not a recognized option (see kern/12927)?
-----
Chris D. Faulhaber - [EMAIL PROTECTED] - [EMAIL PROTECTED]
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