Re: intel_pstate divide error with v3.13-rc4-256-gb7000ad

From: Rafael J. Wysocki
Date: Sat Jan 04 2014 - 09:25:31 EST

On Saturday, January 04, 2014 09:35:58 AM Paolo Bonzini wrote:
> Il 03/01/2014 23:46, Rafael J. Wysocki ha scritto:
> > Well, fixing the KVM bug is surely welcome.
> >
> > That said, adding checks to ensure that your assumptions are valid is rarely
> > wrong, especially if they are done once per kernel boot. And the kernel only
> > should panic if it cannot continue to run, which isn't the case here.
> I agree, but I suspect even your check is already late.

Well, it's just a sanity check and it makes the problem go away for the reporter.

> Your patch is welcome but perhaps it should have a WARN_ON too.

It has been pulled in already, so the WARN_ON() can only be added via a separate
patch now. Would you like to prepare that patch?


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