Bug#775211: linux: Driver mv643xx_eth_port requests probe deferral

[Draghi <none@none.net>]

Source: linux
Version: 3.16.0-4
Severity: important

I am using a QNAP TS-419P II. After upgrading from Wheezy, eth0 stopped working while eth1 still does.
ethtool reports no link when plugging in the cable.
This is partially similar to #719680
For the complete log see: http://forum.qnap.com/viewtopic.php?p=454971

[    0.000000] Linux version 3.16.0-4-kirkwood (debian-kernel@lists.debian.org) (gcc version 4.8.3 (Debian 4.8.3-16) ) #1 Debian 3.16.7-ckt2-1 (2014-12-08)
[    0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=0005397f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: QNAP TS-41x
[    0.000000] Ignoring unrecognised tag 0x41000403
....
[   16.388357] mv643xx_eth: MV-643xx 10/100/1000 ethernet driver version 1.4
[   16.388524] libphy: PHY orion-mdio-mii:00 not found
[   16.388556] platform mv643xx_eth_port.0: Driver mv643xx_eth_port requests probe deferral
[   16.388604] libphy: PHY orion-mdio-mii:01 not found
[   16.388627] platform mv643xx_eth_port.1: Driver mv643xx_eth_port requests probe deferral
[   16.400110] libphy: PHY orion-mdio-mii:00 not found
[   16.400156] platform mv643xx_eth_port.0: Driver mv643xx_eth_port requests probe deferral
[   16.400213] libphy: PHY orion-mdio-mii:01 not found
[   16.400238] platform mv643xx_eth_port.1: Driver mv643xx_eth_port requests probe deferral
[   16.400415] libphy: PHY orion-mdio-mii:00 not found
[   16.400441] platform mv643xx_eth_port.0: Driver mv643xx_eth_port requests probe deferral
[   16.400493] libphy: PHY orion-mdio-mii:01 not found
[   16.400516] platform mv643xx_eth_port.1: Driver mv643xx_eth_port requests probe deferral
....
[   16.428044] libphy: PHY orion-mdio-mii:00 not found
[   16.428089] platform mv643xx_eth_port.0: Driver mv643xx_eth_port requests probe deferral
[   16.428149] libphy: PHY orion-mdio-mii:01 not found
[   16.428173] platform mv643xx_eth_port.1: Driver mv643xx_eth_port requests probe deferral
[   16.437292] ehci-orion: EHCI orion driver
[   16.505004] mv643xx_eth_port mv643xx_eth_port.0 eth0: port 0 with MAC address 00:08:9b:d1:bb:fe
[   16.505105] libphy: PHY orion-mdio-mii:01 not found
[   16.505137] platform mv643xx_eth_port.1: Driver mv643xx_eth_port requests probe deferral
[   16.545625] mv643xx_eth_port mv643xx_eth_port.1 eth1: port 0 with MAC address 00:08:9b:d1:bb:ff
[   16.552504] libphy: orion_mdio_bus: probed
....
[   20.926919] mv643xx_eth_port mv643xx_eth_port.1 eth1: link down
[   20.927017] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
....
[   23.986007] mv643xx_eth_port mv643xx_eth_port.1 eth1: link up, 1000 Mb/s, full duplex, flow control disabled
[   23.986077] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
....

-- System Information:
Debian Release: 8.0
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: armel (armv5tel)

Kernel: Linux 3.16.0-4-kirkwood
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)