The following applies to the 3.13 in trusty.
When transferring data at >= around 100Mbps, the IOMMU logs errors such as:
AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x001c address=0x0000000000003000 flags=0x0050]
I have locally cherry-picked 7a9810e7bd99: r8169 "Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_40" to the Ubuntu-3.13.0-37.64 kernel and confirmed this fixes the issue for my card as well. Please consider this for backporting to the 3.13 stable tree.
The hardware is:
% lspci -s 01:00 -vvvn
01:00.0 0200: 10ec:8168 (rev 0c)
Subsystem: 1462:7721
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 96
Region 0: I/O ports at e000 [size=256]
Region 2: Memory at fea00000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at d0800000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
---
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
CurrentDesktop: KDE
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=eb241518-2842-45e6-9767-0dc297ed3cbd
MachineType: MSI MS-7721
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz root=/dev/hostname/root
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.10
RfKill:
Tags: trusty
Uname: Linux 3.13.0-39-generic x86_64
UpgradeStatus: Upgraded to trusty on 2014-05-10 (209 days ago)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V25.3
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: A78M-E45 (MS-7721)
dmi.board.vendor: MSI
dmi.board.version: 5.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 5.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV25.3:bd03/18/2014:svnMSI:pnMS-7721:pvr5.0:rvnMSI:rnA78M-E45(MS-7721):rvr5.0:cvnMSI:ct3:cvr5.0:
dmi.product.name: MS-7721
dmi.product.version: 5.0
dmi.sys.vendor: MSI
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1399999
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.