[Bug 211219] NIC status does not pass into a state of "no carrier" after disconnecting the cable.

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211219

--- Comment #8 from Franco Fichtner <franco at opnsense.org> ---
Hi all,

Last time we checked this also affected 11.0.  Unfortunately, there multiple
issues at play here:

The FreeBSD em(4) driver under 10.3+ has this bug, and the Intel 7.6.2 driver
fixes this on 10.3.  But the Intel driver does not fully work under 11.0 -- it
has issues with netmap(4) (e.g. using Suricata) there.

The link issue in particular also manifests in several VM deployments that we
heard of through OPNsense, where widespread emulation of e1000 is an integral
part of daily operation and required to be reliable.  The only fix there was to
install the Intel driver, but obviously this doesn't fully work on 11.0
anymore.

So we were hoping to see some progress in either:

Getting the FreeBSD 10.3+ regression ironed out,

and/or

Seeing an Intel driver bump for reliable netmap(4) operation under 11.0.

Bottom line is can we help in any way to speed this up?


Thanks,
Franco

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