Random Network Drops on Realtek Interfaces (re)

Cassidy Larson alandaluz at gmail.com
Tue Sep 22 23:33:19 UTC 2009

Suggestions were:
 #1) try "arp -da".  This does not fix the issue.  I don't see any ARP
for any other IPs other than the local.
 #2) speed/duplex settings. I tried forcing 100FD on the box and that
didnt resolve the issue. When I did force 100 full-duplex on the
switch, the box appeared as if it was reporting 100HD. Odd.

> By chace can you find any messages in dmesg reported by re(4)?
> dmesg output related to re(4) would be more helpful as RealTek
> controllers used to show same device ids.

Here is my dmesg output for the re(4) devices:
re0: <RealTek 8168/8168B/8168C/8168CP/8168D/8168DP/8111B/8111C/8111CP/8111DP
PCIe Gigabit Ethernet> port 0xd800-0xd8ff mem
0xfeaff000-0xfeafffff,0xfdef0000-0xfdefffff irq 16 at device 0.0 on
re0: Using 1 MSI messages
re0: Chip rev. 0x3c000000
re0: MAC rev. 0x00400000
miibus0: <MII bus> on re0
re0: Ethernet address: 00:30:48:b0:ec:84
re0: [FILTER]
re1: <RealTek 8168/8168B/8168C/8168CP/8168D/8168DP/8111B/8111C/8111CP/8111DP
PCIe Gigabit Ethernet> port 0xe800-0xe8ff mem
0xfebff000-0xfebfffff,0xfdff0000-0xfdffffff irq 17 at device 0.0 on
re1: Using 1 MSI messages
re1: Chip rev. 0x3c000000
re1: MAC rev. 0x00400000
miibus1: <MII bus> on re1
re1: Ethernet address: 00:30:48:b0:ec:85
re1: [FILTER]

Currently, I am not using re1. Only re0 for access.

Another side note, I have updated the BIOS to 1.0a from Supermicro as
of yesterday, but that has not fixed this issue.



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