Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Thu, 18 Jan 2018 09:10:43 +0100 (CET)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Keith Busch <keith.busch@intel.com>
cc:     LKML <linux-kernel@vger.kernel.org>
Subject: Re: [BUG 4.15-rc7] IRQ matrix management errors
In-Reply-To: <20180118023720.GE7562@localhost.localdomain>
Message-ID: <alpine.DEB.2.20.1801180909210.1847@nanos>
References: <20180116071145.GA5643@localhost.localdomain> <alpine.DEB.2.20.1801161131160.1823@nanos> <alpine.DEB.2.20.1801161217300.1823@nanos> <20180117022511.GD6259@localhost.localdomain> <alpine.DEB.2.20.1801170832460.2366@nanos> <20180117075500.GB7562@localhost.localdomain>
 <alpine.DEB.2.20.1801171020440.1777@nanos> <alpine.DEB.2.20.1801171030150.1777@nanos> <20180117142440.GC7562@localhost.localdomain> <alpine.DEB.2.20.1801171557330.1777@nanos> <20180118023720.GE7562@localhost.localdomain>
User-Agent: Alpine 2.20 (DEB 67 2015-01-07)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, 17 Jan 2018, Keith Busch wrote:
> On Wed, Jan 17, 2018 at 04:01:47PM +0100, Thomas Gleixner wrote:
> > Which device is allocating gazillions of non-managed interrupts?
> 
> I believe that would be the i40e. :)

So enterprise grade insanity was spot on.

Can you please provide the output of

# cat /sys/kernel/debug/irq/irqs/$ONE_I40_IRQ

Thanks,

	tglx