[CentOS] Interrupt on pressing reset button

Fri Jun 4 01:02:07 UTC 2010
Jobst Schmalenbach <jobst at barrett.com.au>

IMHO this is not possible as this is a NON maskable interrupt,
thus the processor MUST do the jump and there is no way
a programmer (think OS) can hook into that.

... and so it SHOULD. Think the other way, you have
a hung OS (locked) and you need to reset. IF this
was maskable you could press that button, but nothing
wopuld happen as the OS already is dead, requiring a 
power cycle.

If you want something to reboot the computer by
pressing a button, i.e. no keyboard, use the
power button as this is maskable. Catch this 
through inittab and shut down the computer 
nicely (I do this one a few machines).



Jobst


On Wed, Jun 02, 2010 at 05:03:21PM +0530, premrajm at digilink.in (premrajm at digilink.in) wrote:
> Hi,
> 
> On Centos-5.3, is it possible to capture an interrupt when the reset 
> button on the Supermicro Box is pressed ?
> 
> 
> Regards,
> Premraj M
> 
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