linux-kernel - Re: PROBLEM: Intel I210AT NIC resets while using PCI passthrough on ESXi (regression)

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Message-ID: <alpine.DEB.2.11.1607261606160.19896@nanos>
Date:	Tue, 26 Jul 2016 16:06:53 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Foster Snowhill <forst@...stwoof.ru>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Matthias Prager <linux@...thiasprager.de>,
	Jason Taylor <jason.taylor@...plivity.com>,
	Marc Zyngier <marc.zyngier@....com>
Subject: Re: PROBLEM: Intel I210AT NIC resets while using PCI passthrough on
 ESXi (regression)

On Tue, 26 Jul 2016, Foster Snowhill wrote:
> On 26.07.16 16:49, Thomas Gleixner wrote:
> > On Mon, 25 Jul 2016, Foster Snowhill wrote:
> >> On 25.07.16 13:56, Thomas Gleixner wrote:
> >>> Could you please give the patch below a try? It might be related, but I'm not
> >>> sure whether it will cure that particular vmware oddity.
> >>
> >> Patch fixed the issue for me. Did 4-5 reboots just to be sure, all working properly, no adapter resets. Just for the sake of experiment built a clean 4.7 kernel without the patch, issue still present there as expected.
> >>
> > 
> > Can you please test something else with that patch?
> > 
> > After starting the NIC, can you please shutdown the interface, so the
> > interrupt gets shutdown as well. (It should vanish from /proc/interrupts).

Does reenabling work or does that result in a stall again?

Thanks,

	tglx