Yes,  In the working case the log looks like:

Nov  3 12:26:00 cbidewell-desktop kernel: [    1.400831] e1000e
0000:00:19.0: >irq 46 for MSI/MSI-X
Nov  3 12:26:00 cbidewell-desktop kernel: [    1.705990] e1000e
0000:00:19.0: >eth0: (PCI Express:2.5GT/s:Width x1) 00:1c:c0:60:ee:1e
Nov  3 12:26:00 cbidewell-desktop kernel: [    1.705993] e1000e
0000:00:19.0: >eth0: Intel(R) PRO/1000 Network Connection
Nov  3 12:26:00 cbidewell-desktop kernel: [    1.706015] e1000e
0000:00:19.0: >eth0: MAC: 7, PHY: 6, PBA No: FFFFFF-0FF
Nov  3 12:26:00 cbidewell-desktop NetworkManager[860]: <info> (eth0):
new Ethernet device (driver: 'e1000e' ifindex: 2)
Nov  3 12:26:01 cbidewell-desktop kernel: [   18.180366] e1000e
0000:00:19.0: >irq 46 for MSI/MSI-X
Nov  3 12:26:01 cbidewell-desktop kernel: [   18.284093] e1000e
0000:00:19.0: >irq 46 for MSI/MSI-X

Nov 3 12:26:04 cbidewell-desktop kernel: [ 20.929802] e1000e: eth0 NIC Link
is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

lshw in the failure case shows the following:
*-network UNCLAIMED


             description: Ethernet controller
             product: 82566DC-2 Gigabit Network Connection
             vendor: Intel Corporation
             physical id: 19
             bus info: pci@0000:00:19.0
             version: 02
             width: 32 bits
             clock: 33MHz
             capabilities: pm msi cap_list
             configuration: latency=0
             resources: memory:e3200000-e321ffff
memory:e3224000-e3224fff ioport:3400(size=32)



On Thu, Nov 8, 2012 at 1:52 PM, Alexander Duyck <alexander.h.du...@intel.com
> wrote:

> Are you sure this is the failure case?  I ask since it seems like the
> e1000e is claiming the device and assigning it irq 47 for use with MSI
> based on the snippet from the log below.  I would have expected to see
> an error stating that it failed to load the driver on the interface.
>
> Thanks,
>
> Alex
>
> On 11/08/2012 10:31 AM, Mark Bidewell wrote:
> > Thanks.  Here is the logging in the failure case:
> > [    1.139788] e1000e: Intel(R) PRO/1000 Network Driver - 2.0.0-k
> > [    1.139791] e1000e: Copyright(c) 1999 - 2012 Intel Corporation.
> > [    1.139828] e1000e 0000:00:19.0: >setting latency timer to 64
> > [    1.139899] e1000e 0000:00:19.0: >Interrupt Throttling Rate
> (ints/sec) set to dynamic conservative mode
> > [    1.139934] e1000e 0000:00:19.0: >irq 47 for MSI/MSI-X
> > I have been tracking the issue with Ubuntu here:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1072722
> >
> >
> > On Thu, Nov 8, 2012 at 1:04 PM, Alexander Duyck
> > <alexander.h.du...@intel.com <mailto:alexander.h.du...@intel.com>>
> wrote:
> >
> >     Mark,
> >
> >     I could recommend checking the dmesg log after you have
> >     unloaded/reloaded the e1000e driver.  There is likely an error that
> is
> >     being reported that is preventing the driver from loading and knowing
> >     what the error is that is being reported would go a long way toward
> >     telling us what the issue is.
> >
> >     The difference between the working and non-working case is likely
> >     due to
> >     the fact that the driver enables bus mastering and MSI interrupts
> once
> >     it is loaded.  In the case where it didn't load it will not have
> >     enabled
> >     bus mastering or MSI interrupts.
> >
> >     Thanks,
> >
> >     Alex
> >
> >     On 11/08/2012 08:29 AM, Mark Bidewell wrote:
> >     > Thank you, that is what I suspect but since it worked up until
> >     recently, I
> >     > thought it would be good to check.  I tried to recovery reflash
> >     the BIOS
> >     > after replacing the battery (I am already at the latest - so no
> >     update)  no
> >     > way to know if it actually did the reflash.  Should the e1000e
> >     be able to
> >     > support the HW configuration in the non-working case (IRQ 20, no
> >     MSI, no
> >     > bus master)?  Because even when lspci reports IRQ 20, e1000e
> >     still looks at
> >     > 46.
> >     >
> >     > Thanks
> >
> > --
> > Mark Bidewell
> > http://www.linkedin.com/in/markbidewell
>
>


-- 
Mark Bidewell
http://www.linkedin.com/in/markbidewell
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