linux-kernel - Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

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Date:	Tue, 05 Mar 2013 03:33:45 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Jiri Slaby <jslaby@...e.cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>, x86@...nel.org,
	lkml <linux-kernel@...r.kernel.org>,
	e1000-devel@...ts.sourceforge.net,
	Bruce Allan <bruce.w.allan@...el.com>
Subject: Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

On Tue, 2013-03-05 at 12:27 +0100, Borislav Petkov wrote:
> On Tue, Mar 05, 2013 at 02:29:01AM -0800, Jeff Kirsher wrote:
> > On Tue, 2013-03-05 at 11:14 +0100, Borislav Petkov wrote:
> > > 
> > > On Tue, Mar 05, 2013 at 02:02:48AM -0800, Jeff Kirsher wrote:
> > > > They are in my queue of e1000e patches for net and are being testing
> > > > currently. I should be able to push them upstream this week.
> > > 
> > > Right, if you'd like me to run them here too, let me know. 
> > 
> > Any additional testing is very much appreciated, so feel free to test
> > the patches with what hardware you have.
> 
> Yep, it looks good, machine suspends ok again. I'll watch it in the next
> couple of days.
> 
> The only problem that remains is this:
> 
> [  103.137024] xhci_hcd 0000:00:14.0: power state changed by ACPI to D3cold
> [  103.161032] ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold
> [  103.462328] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
> [  103.462342] e1000e 0000:00:19.0 eth0: 10/100 speed: disabling TSO
> [  108.472847] Uhhuh. NMI received for unknown reason 3c on CPU 0.	<---
> [  108.472850] Do you have a strange power saving mode enabled?
> [  108.472851] Dazed and confused, but trying to continue
> 
> AFAIR, Rafael said it had something to do with the suspend kernel not
> picking up settings done to the main kernel on time. Or something to
> that effect, my memory is hazy.
> 

Would you like me to add your Tested-by: to the patches?

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