Re: Recoverable MCA interrupts from NMI handlers? IPMI and RCU?

From: Paul E. McKenney
Date: Fri Jun 06 2008 - 20:44:25 EST


On Fri, Jun 06, 2008 at 05:03:37PM -0700, H. Peter Anvin wrote:
> Corey Minyard wrote:
> >If you mean the IPMI driver, it does not tie into any SMI. It
> >theoretically could since there's a bit for that in the watchdog timer,
> >but there's been no demand and I haven't looked at it. I guess it would
> >be better than an NMI.
> >
> >If it did tie in, it would most likely just panic to get useful
> >information out before the watchdog reset the system.
>
> The main reason I could see wanting to use SMI would be as a debugging
> tool, since SMI makes the entire state of the system available at a low
> level; however, trying to interact with the state of the kernel at this
> priority level seems beyond the pale in terms of complexity.

Works for me! ;-)

Thanx, Paul
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