I have an Asus M5A97 LE R2.0 motherboard with an integrated Realtek 8111F ethernet chipset, and after a period of time ( 10-20 minutes, although it seems shorter under heavy use ) the ethernet stops responding. The main symptoms of this are a lack of DNS responses (bind is installed locally and configured as recursive), and general internet access (e.g, "ping 8.8.8.8" or "ping 192.168.1.1"). I'm able to fix this with "ifconfig <interface> down, ifconfig <interface> up, dhclient -d", but the issue does come back.
It's worth noting that some of my research suggested that this could possibly be related to IOMMU being enabled, although this is an unacceptable solution as disabling IOMMU seems to also disable USB.
There are no obvious signs of error from the kernel in the "dmesg" output or the various system logs (kern.log, syslog), even with the verbose and debug options added to the kernel options from the grub boot screen.
I was able to find someone with similar issues on the kernel mailing list, and there is a short patch [1] that does appear to fix the issue I had. I applied this patch to the raring kernel (via apt-get source linux-image) and ethernet has been uninterrupted for about a day now. However, this patch does not appear to be integrated into the 3.10 linux kernel as of now [2].
This has been tested on the most current raring kernel from the linux-image package as well as the mainline kernel that was current as of yesterday ( linux-image-3.10.0-999-generic_3.10.0-999.201306260405_amd64 ).
[1] https://lkml.org/lkml/2013/4/10/549
[2] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/net/ethernet/realtek/r8169.c?id=refs/tags/v3.10-rc7#n4192
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-25-generic 3.8.0-25.37
ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13
Uname: Linux 3.8.0-25-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-25-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Date: Thu Jun 27 15:24:54 2013
HibernationDevice: RESUME=UUID=620dbcbf-ae16-47b7-b3d1-c868d3ad54e8
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: To be filled by O.E.M. To be filled by O.E.M.
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US:en
TERM=rxvt-unicode-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/zsh
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-25-generic root=UUID=2b918b5d-084c-4d73-979b-e5d662ad0e36 ro splash quiet
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.8.0-25-generic N/A
linux-backports-modules-3.8.0-25-generic N/A
linux-firmware 1.106
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-05-11 (47 days ago)
WifiSyslog:
Jun 27 08:21:36 yavin dhclient: DHCPREQUEST of 192.168.1.2 on p4p1 to 192.168.1.1 port 67 (xid=0x7a9a1da7)
Jun 27 08:21:36 yavin dhclient: DHCPACK of 192.168.1.2 from 192.168.1.1
Jun 27 08:21:36 yavin dhclient: bound to 192.168.1.2 -- renewal in 37687 seconds.
dmi.bios.date: 01/11/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1503
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: M5A97 LE R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1503:bd01/11/2013:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97LER2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.
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