Red Hat Bugzilla – Bug 1260820
r8169 Ethernet needs autoneg off
Last modified: 2015-12-02 13:18:04 EST
Description of problem:
When I boot, I have no Ethernet network: the Ethernet card reports it is in a link down state. I'm using a r8169 Ethernet card. To get my Ethernet card to establish a link, I have to manually disable autonegotiation:
# cat /etc/rc.d/rc.local
ethtool -s p2p1 autoneg off
As soon as I disable autonegotiation, it connects immediately. This is 100% reproducible. I don't have to do anything special; it's this way immediately after boot.
Version-Release number of selected component (if applicable):
However it's been like this for a while (I just haven't gotten around to reporting it until now).
# lspci -vv
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
Subsystem: Biostar Microtech Int'l Corp Device 230a
Kernel driver in use: r8169
Kernel modules: r8169
Some excerpts from /var/log/messages:
Sep 7 16:47:22 x kernel: r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Sep 7 16:47:22 x kernel: r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xff
ffc90001b96000, b8:97:5a:13:83:b6, XID 0c900800 IRQ 28
Sep 7 16:47:22 x kernel: r8169 0000:02:00.0 eth0: jumbo features [frames: 92
00 bytes, tx checksumming: ko]
Sep 7 16:47:22 x kernel: r8169 0000:02:00.0 p2p1: renamed from eth0
Sep 7 16:47:24 x NetworkManager: <info> (p2p1): carrier is OFF
Sep 7 16:47:24 x kernel: [ 3.281498] r8169 0000:02:00.0 p2p1: link down
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