Bug#837759: network configuration stops working reliably
mpitt at debian.org
Mon Sep 19 10:02:08 BST 2016
Wolfgang Walter [2016-09-14 23:34 +0200]:
> > > I tested this with a script:
FTR, I tried this as welll, and I cannot reproduce the bug either.
Wolfgang Walter [2016-09-14 17:56 +0200]:
> Yes, systemd-networkd ist active. But on most machines I only have *.link
> entries, usually one to name the device:
*.link entries are handled by udev, not networkd. So if you can
reproduce this on a machine with only has files like
then can you please "systemctl disable --now systemd-networkd" and
check if the problem still happens? I suppose not, but if so, this
tells us that this is being done through udev.
If networkd itself is really the culprit, can you please try the
* Keep it disabled, run your test.sh to set up the dummy interface,
(as root). Does this now cause the addresses to be removed? This
will run much later than test.sh, so this will tell us if this is a
principal logic error or a race condition, i. e. only happens if
networkd starts at the right time after test.sh.
* Enable networkd again, and boot with "debug" in the kernel command
line. Does this still reproduce the bug?
If so, please attach the output of "journalctl -b".
If not, just enable debugging for networkd with
mkdir -p /etc/systemd/system/systemd-networkd.service.d/
printf '[Service]\nEnvironment=SYSTEMD_LOG_LEVEL=debug' > /etc/systemd/system/systemd-networkd.service.d/debug.conf
and reboot. If you catch the bug, please attach "journalctl -b".
Martin Pitt | http://www.piware.de
Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)
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