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CuBox i4 Pro Ethernet Failure with MDIO read timeout


jhcarter

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I am running Armbian_4.5_Cubox-i_Ubuntu_trusty_3.14.54 on a CuBox i4 Pro.  The application is a security camera server and the current test environment consists of the server and two IP cameras set to 320x240 and running at 5 fps.  The server is receiving these two streams over the Ethernet interface constantly but the data rate is pretty low.  I am seeing the Ethernet interface fail after 24 to 48 hours with the syslog entries shown below.  After the failure I can restart the link with ifdown/ifup and it works fine.

 

Has anyone else seen a similar issue?

Oct 29 11:56:09 localhost kernel: [    0.505433] libphy: fec_enet_mii_bus: probed
Oct 29 11:56:09 localhost kernel: [    0.505892] fec 2188000.ethernet eth0: registered PHC device 0
Oct 29 11:56:09 localhost kernel: [    3.832211] fec 2188000.ethernet eth0: Freescale FEC PHY driver [Atheros 8035 ethernet] (mii_bus:phy_addr=2188000.ethernet:04, irq=-1)
Oct 29 11:56:11 localhost kernel: [    6.837655] libphy: 2188000.ethernet:04 - Link is Up - 100/Full
Oct 30 03:17:01 localhost kernel: [55253.929843] fec 2188000.ethernet eth0: MDIO read timeout
Oct 30 03:17:03 localhost kernel: [55255.940256] libphy: 2188000.ethernet:04 - Link is Down

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No, never saw this. I use one Cubox on daily basis but with a little different set-up (Openelec) but it works w/o problem. I think the Ethernet driver is the same.

 

I am not sure if there are some changes in this area but just in case try with some older kernel 3.14.14 

http://apt.armbian.com/pool/main/l/linux-upstream/linux-image-cubox_4.2_armhf.deb

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This happened two times over a few days just prior to my initial post.  In an effort to be sure I have a repeatable failure test case I have let it run since that time with few reboots and with the original 3.14.54 kernel and it has not failed again.  I must assume at this point that there was some external influence at work with the initial two failures.   

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