[Bug 166724] [re] if_re watchdog timeout

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=166724

Jan Przybylak <jplx256 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jplx256 at gmail.com

--- Comment #46 from Jan Przybylak <jplx256 at gmail.com> ---
I'm also experiencing this on 12.1-RELEASE-p4. While networking usually works,
large transfers seem to kill the driver, which can only be fixed by rebooting.
When this happens, `dmesg` will be filled with:
    re0: watchdog timeout
    re0: link state changed to DOWN
    re0: link state changed to UP
These three messages repeat forever until the machine is rebooted. Restarting
the interface with ifconfig did not fix it.

This typically happens when I create a large backup (I use borgmatic) to an
SFTP server on my local network.

The affected machine is an Odroid H2 which I use as NAS. It's got two Realtek
RTL8111G NICs, which I am not able to replace (It's a Single Board Computer,
the NICs are soldered to the board and there are no PCI slots).

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