Re: AMD-Vi: Event logged IO_PAGE_FAULT - ixgbe Detected Tx Unit Hang - Reset adapter - master disable timed out

[Lutz Vieweg <lvml@5t9.de>]

On 06/13/2016 11:08 AM, Joerg Roedel wrote:
> On Thu, Jun 09, 2016 at 09:03:40AM -0700, Alexander Duyck wrote:
>>>> Jun  9 14:40:09 computer kernel: AMD-Vi: Event logged [IO_PAGE_FAULT device=04:00.0 domain=0x000e address=0x00000000000178c0 flags=0x0050]
>>>> Jun  9 14:40:09 computer kernel: AMD-Vi: Event logged [IO_PAGE_FAULT device=04:00.0 domain=0x000e address=0x0000000000017900 flags=0x0050]
>
> Some more context would be helpful. Which kernel version was the last
> that worked and with which version do you start to see these messages?

Two servers were running linux-4.4.2 for many months,
both with 10Gbase-T NICs connected to the same switch, without
any such outage.

Both servers were recently upgraded to linux-4.6.1, and one
of the servers so far twice showed this "IO_PAGE_FAULT" symptom
within a period of ~ 7 days.

The hardware of the two servers is the same except for the
model of the Intel 10Gbase-T NIC: The server with the two fails
runs a fairly new
  Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01)
while the other server (without symptoms so far) runs a much older
  Intel Corporation 82598EB 10-Gigabit AT Network Connection (rev 01)
both using the same ixgbe driver module.

(Since both servers are working as a shared-nothing-cluster, they
pretty much do the same.)

Regards,

Lutz Vieweg


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