[systemd-devel] assert() when restarting systemd-networkd
Michael Olbrich
m.olbrich at pengutronix.de
Tue Aug 12 02:19:38 PDT 2014
On Wed, Jul 30, 2014 at 06:09:44PM +0200, Tom Gundersen wrote:
> On Sun, Jul 20, 2014 at 3:12 PM, Michael Olbrich
> <m.olbrich at pengutronix.de> wrote:
> > with the current git master (v215-293-g4e6029435111) restarting
> > systemd-networkd triggers an assert() here:
> >
> > In netdev_join_handler():
> > assert(IN_SET(link->state, LINK_STATE_ENSLAVING, LINK_STATE_FAILED,
> > LINK_STATE_LINGER));
> >
> > gdb tells me that link->state is LINK_STATE_SETTING_ADDRESSES here.
> >
> > It doesn't happen all the time, but when it happens, then the assert()
> > tiggers until the start limit kicks in.
>
> I reworked this stuff a bit. Can you reproduce with current git?
I've tested git commit bf1594f54ea4b49eee95a16796ec11c55314b2a4.
Now eth0 is not configured at all:
$ ip l
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff
3: vlan0 at eth0: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/ether 5e:69:2b:9a:93:07 brd ff:ff:ff:ff:ff:ff
So I can't test the original issue. That only occurs if eth0 gets an
address from the dhcp server.
The log looks like this:
Aug 01 00:00:00 BaseKit systemd[1]: Starting Network Service...
Aug 01 00:00:00 BaseKit systemd-networkd[355]: timestamp of '/lib/systemd/network' changed
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : loaded macvlan
Aug 01 00:00:00 BaseKit systemd-networkd[355]: sd-rtnl: discarding 20 bytes of incoming message
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : link 2 added
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : udev initialized link
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : saved original MTU: 1500
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : flags change: +MULTICAST +BROADCAST
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : link 1 added
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : udev initialized link
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : saved original MTU: 0
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : flags change: +LOOPBACK +UP +LOWER_UP +RUNNING
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : gained carrier
Aug 01 00:00:00 BaseKit systemd[1]: Started Network Service.
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : link state is up-to-date
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : found matching network '/lib/systemd/network/eth0.network'
Aug 01 00:00:00 BaseKit systemd-networkd[355]: eth0 : enslaving by 'vlan0'
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : creating
Aug 01 00:00:00 BaseKit systemd-networkd[355]: Sent message type=method_call sender=n/a destination=org.freedesktop.DBus object=/org/freedesktop/DBus interface=org.freedesktop.DBus member=Hello cookie=1 reply_cookie=0 error=n/a
Aug 01 00:00:00 BaseKit systemd-networkd[355]: Got message type=method_return sender=org.freedesktop.DBus destination=:1.1 object=n/a interface=n/a member=n/a cookie=1 reply_cookie=1 error=n/a
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : getting address failed: Device or resource busy
Aug 01 00:00:00 BaseKit systemd-networkd[355]: Got message type=signal sender=org.freedesktop.DBus destination=:1.1 object=/org/freedesktop/DBus interface=org.freedesktop.DBus member=NameAcquired cookie=2 reply_cookie=0 error=n/a
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : link state is up-to-date
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : unmanaged
Aug 01 00:00:00 BaseKit systemd-networkd[355]: sd-rtnl: discarding 20 bytes of incoming message
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : added address: ::1/128
Aug 01 00:00:00 BaseKit systemd-networkd[355]: lo : added address: 127.0.0.1/8
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : link 3 added
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : udev initialized link
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : netdev has index 3
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : netdev ready
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : saved original MTU: 1500
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : flags change: +MULTICAST +BROADCAST
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : created
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : link state is up-to-date
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : found matching network '/lib/systemd/network/vlan0.network'
Aug 01 00:00:00 BaseKit systemd-networkd[355]: vlan0 : bringing link up
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : setting addresses
Aug 01 00:00:01 BaseKit systemd-networkd[355]: sd-rtnl: discarding 20 bytes of incoming message
Aug 01 00:00:01 BaseKit systemd-networkd[355]: lo : updated address: ::1/128
Aug 01 00:00:01 BaseKit systemd-networkd[355]: lo : updated address: 127.0.0.1/8
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : flags change: +UP +LOWER_UP +RUNNING
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : gained carrier
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : added address: 10.1.42.4/24
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : addresses set
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : setting routes
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : routes set
Aug 01 00:00:01 BaseKit systemd-networkd[355]: vlan0 : link configured
Aug 01 00:00:02 BaseKit systemd-networkd[355]: vlan0 : added address: fe80::5c69:2bff:fe9a:9307/64
Michael
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