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Date: Wed, 13 Jul 2016 11:43:03 +0200
From: Joerg Roedel <joro@8bytes.org>
To: Meelis Roos <mroos@linux.ee>
Cc: iommu@lists.linux-foundation.org,
        Linux Kernel list <linux-kernel@vger.kernel.org>,
        David Woodhouse <dwmw2@infradead.org>
Subject: Re: IOMMU+DMAR causing NMIs-s (was: 4.7-rc6: NMI in intel_idle on HP
 Proliant G6)
Message-ID: <20160713094303.GL12639@8bytes.org>
References: <alpine.LRH.2.20.1607121445020.2088@math.ut.ee>
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On Wed, Jul 13, 2016 at 12:16:46PM +0300, Meelis Roos wrote:
> ROM setup settings that might be of interest:
> 
> Advanced memory protection: advanced ecc support
> No-Execute memory protection: enabled
> Intel virtualization technology: enabled
> Intel hyperthreading options: enabled
> Processor core disable: all cored enabled
> Intel turbo boost technology: enabled
> Intel VT-d: enabled
> HP power profile: custom
> HP power regulator: hp dynamic power savings mode (not OS control)
> Intel qpi link power management: enabled
> Minimum processor idle power core state: C6
> Minimum processor idle power package state: C6
> Dynamic power saving mode response: fast
> Collaborative power control: enabled
> MPS table: full table apic
> NMI debug button: enabled
> PCI bus padding options: enabled
> HW prefetcher: enabled
> Adjacent sector prefetch: enabled
> Node interleaving: disabled

AFAICT these settings look normal.

> Nothing in ILO log or integrated management log (IML).

Then I think we need a bisect to make progress here.


	Joerg