#19085: nanostation m5 loco xw "loses" interface
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Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: kernel | Version: Trunk
Resolution: | Keywords:
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Comment (by devel@…):
We started to collect kernel messages related to the eth0 failure events.
The following log messages are typical for hosts that are failing
regularly:
{{{
[ 202.320000] eth0: link up (10Mbps/Full duplex)
[ 204.320000] eth0: link up (100Mbps/Full duplex)
[ 844.320000] eth0: link down
[ 845.320000] eth0: link up (100Mbps/Full duplex)
[ 3085.330000] eth0: link up (10Mbps/Half duplex)
[ 3087.330000] eth0: link up (100Mbps/Full duplex)
[ 3639.340000] eth0: link down
[ 3640.340000] eth0: link up (100Mbps/Full duplex)
[ 3880.350000] eth0: link down
[ 3881.350000] eth0: link up (100Mbps/Full duplex)
[ 5071.360000] eth0: link down
[ 5072.360000] eth0: link up (100Mbps/Full duplex)
[ 6390.370000] eth0: link down
}}}
Thus it seems like there is an event causing a renegotiation of the link
({{{link down}}}) from time to time. Exactly one second later there is a
{{{link up}}} event, if we are lucky. Otherwise there is no further
renegotiation and the links stays down permanently.
Sadly this situation cannot be resolved manually by using {{{ethtool}}}
(error message: {{{No MII transceiver present}}}). For now a reboot is the
only known workaround for this situation.
--
Ticket URL: <https://dev.openwrt.org/ticket/19085#comment:4>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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