Bug#991135: WiFi start is delayed by 5 minutes and networking-routes.service/start deleted to break ordering cycle

[Michael Biebl]

Control: reassign -1 ifupdown-extra

Am 15.07.21 um 12:46 schrieb Peter Mueller:
> Package: systemd
> Version: 247.3-5
> 
> Reproduce:
> 1) Boot the computer.
> 2) Have no WiFi approximately 5 minutes long.
> 3) Have WiFi after 5 minutes.
> 
> It doesn't matter whether WiFi is tested from gnome or from tty.  My 
> network is configured via interfaces (not via NetworkManager).
> I have a PCE-AX3000 card and use an up-to-date Debian 11 “Bullseye” with 
> firmware-iwlwifi. The bugs has existed since the fresh installation in 
> January 2021 with all the current kernels so far.
> 
> $ cat /etc/network/interfaces
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
> source /etc/network/interfaces.d/*
> # The loopback network interface
> auto lo
> iface lo inet loopback
> ## The primary network interface
> allow-hotplug wlp179s0
> iface wlp179s0 inet dhcp
> ## This is an autoconfigured IPv6 interface
> iface wlp179s0 inet6 auto
> wpa-ssid o2-WLAN00
> wpa-psk AnonymizedPassword
> ## detect wired interfaces when they become available
> allow-hotplug enp6s0 enp7s0
> # raise the wireless interface as primary
> auto wlp179s0
> $ sudo journalctl -b | grep -B 4 "ordering cycle"
> Jul 15 11:39:39 DtPC systemd[1]: systemd 247.3-5 running in system mode. 
> (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP 
> +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID 
> +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified)
> Jul 15 11:39:39 DtPC systemd[1]: Detected architecture x86-64.
> Jul 15 11:39:39 DtPC systemd[1]: Set hostname to <AnonymizedHostname>.
> Jul 15 11:39:39 DtPC kernel: usb 1-11.4.3: new high-speed USB device 
> number 9 using xhci_hcd
> Jul 15 11:39:39 DtPC systemd[1]: network.target: Found ordering cycle on 
> networking-routes.service/start
> Jul 15 11:39:39 DtPC systemd[1]: network.target: Found dependency on 
> network.target/start
> Jul 15 11:39:39 DtPC systemd[1]: network.target: Job 
> networking-routes.service/start deleted to break ordering cycle starting 
> with network.target/start
> $ cat /etc/network/interfaces.d/*
> auto lo
> iface lo inet loopback
> # auto eth0
> # iface eth0 inet dhcp
> 
> How to debug this further? (I don't wish to clutter this bug report with 
> tons of potentially unrelated logs; please advise.)

I don't see a bug in systemd here. What I see are two (maybe related) issues

a/ networking-routes.service (from ifupdown-extra) causing a dependency 
loop (=> looks like a bug in ifupdown-extra to me)
b/ an issue with your network configuration (which is managed by 
ifupdown). If b/ is caused by a/, I dunno.

Let's reassign this to ifupdown-extra. Its maintainer will be in a 
better position to advise you with any ifupdown related issues.

Regards,
Michael

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