Re: [PATCH] Option to disable AMD C1E (allows dynticks to work)

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On Sun, 30 Dec 2007 08:36:26 -0500
Richard Harman <[email protected]> wrote:

> The C1E patch, which permits the lapic to function *does* make my
> system stable.  My previous method of testing (using USB peripherals)
> and checking /proc/interrupts for ERRor interrupts so far hasn't
> caused the system to lock up.

Let me put it another way: have you actually experienced any lockups
with a vanilla (that is, with no patches applied) 2.6.24-rc6 kernel?
Try first with "force_amd_c1e". So far, all I see is that you're
getting nohz/dynticks working with my patch, and that's okay, it's the
expected behavior. But I seriously doubt that it's my patch that keeps
your system from locking up. I'm not bugging you just to clarify this
matter, but if your system locked up iff (as in both necessary and
sufficient) the patch was _not_ applied, that would be a really serious
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