Re: re0: watchdog timeout on 8111C

On 2025-01-07, S V <nerfur@gmail.com> wrote:
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> Hello, misc@
>
> I get myself some chinese pcie ethernet card GSMIN DP18 for my arm64 board
>
> pci0 at dwpcie0
> ppb0 at pci0 dev 0 function 0 "Baikal Electronics BE-M1000" rev 0x00
> pci1 at ppb0 bus 1
> re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x02: RTL8168C/8111C
> (0x3c00), msi, address 00:e0:4c:68:43:c0
> rgephy0 at re0 phy 7: RTL8169S/8110S/8211, rev. 2
>
>
>
> Card is detected, got in ifconfig
>
> re0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500
> lladdr 00:e0:4c:68:43:c0
> index 3 priority 0 llprio 3
> media: Ethernet autoselect (1000baseT full-duplex,rxpause,txpause)
> status: active
>
>
> but I got constant re0: watchdog timeout and reinit
>
> re0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500
> lladdr 00:e0:4c:68:43:c0
> index 3 priority 0 llprio 3
> media: Ethernet autoselect (none)
> status: no carrier
>
>
> Any ideas on how to debug it and/or fix it?

re(4) is fairly reliable so I would suspect this is more likely to be a
problem with interrupt routing i.e. what actually happens on your system
doesn't match what OpenBSD thinks is happening.

Details of the system (hardware, what boot loader + version, etc) plus
the information from sendbug -P run as root would be a good start.