i'll just note that i have the same problem
i'm running stretch/sid with
acpi-support 0.142-8
acpid 1:2.0.28-1
ifupdown 0.8.16
isc-dhcp-client 4.3.5~b1-1
laptop-mode-tools 1.70-2
pm-utils 1.4.1-16
systemd 232-3
wireless-tools 30~pre9-12
wpasupplicant 2.5-2+v2.4-3+b1
whenever mine gets into one of these loops, i notice a lot of
Dec 11 21:37:04 runt dhclient[10038]: bound to 10.110.210.69 -- renewal in
19822 seconds.
Dec 11 21:37:04 runt systemd[1]: Reloading.
... wpa_action stuff ...
Dec 11 21:37:04 runt wpa_action[10186]: ifdown wlan0
Dec 11 21:37:04 runt systemd[1]: Reloading.
Dec 11 21:37:04 runt dhclient[10217]: Killed old client process
until i get the hysteresis check messages that seem to bring the madness
to an end
this is all i have in my /etc/network/interfaces, aside from lo:
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet manual
wpa-driver wext
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
# no id_str, 'default' is used as the fallback mapping target
iface default inet dhcp
i wonder if it has anything to do with
/etc/dhcp/dhclient-exit-hooks.d/timesyncd
though my DHCP server isn't providing any time servers. i'm going to
rename it timesyncd~ so dhclient-script doesn't source it and see what
happens, anyway, since i don't need it
