[Bug 236962] Realtek RTL8111/8168/8411 erratically drops network connection

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236962

Eugene Grosbein <eugen at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |eugen at freebsd.org

--- Comment #4 from Eugene Grosbein <eugen at freebsd.org> ---
(In reply to marcel from comment #3)

I was in exactly same position using cheap hoster's hardware and re0 watchdog
timeouts. There is simple work-around that may be acceptable if problem is
rare. Add single line to /etc/sysctl.conf:

kern.* |/root/bin/monitor_nic

Simple script /root/bin/monitor_nic just does what driver is supposed to do in
such case: reset interface to revive it.

#!/bin/sh
PATH=/bin:/sbin:/usr/bin:/usr/sbin
while read month day time s host kernel rest
do
  case "$rest" in
  "re0: watchdog timeout")
    sleep 5
    ifconfig re0 down
    sleep 1
    ifconfig re0 up
    sleep 30
    ;;
  esac
done
# EOF

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