[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
please reopen if this is still an issue ** Changed in: systemd (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
As near as I can tell the fix for this was never backported from systemd v241 to bionic. I recently filed a related a bug report here: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1853956 My symptoms are a little different (misconfiguration instead of an infinite loop), but I have a strong suspicion that the underlying cause is the same. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
** Changed in: systemd Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
** Changed in: systemd Status: Unknown => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
** Bug watch added: github.com/systemd/systemd/issues #11404 https://github.com/systemd/systemd/issues/11404 ** Also affects: systemd via https://github.com/systemd/systemd/issues/11404 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
I've written a small script to reproduce the issue and I got following results using VMs from Linode: - broken with systemd=237-3ubuntu10.9 on Ubuntu 18.04, 4.15.0-43-generic #46-Ubuntu. - broken with systemd=237-3ubuntu10.11 on Ubuntu 18.04, 4.15.0-43-generic #46-Ubuntu. - broken with systemd=239-7ubuntu10.6 on Ubuntu 18.10, 4.18.0-13-generic #14-Ubuntu. The way I used to reproduce the issue was to 1) start Linode VM, 2) run `./systemd-wg 23`. For some reason, 23 is the magic number of peers: 22 peers, 24 peers and 1500 peers work okay, but 23 peers trigger the bug. Given the fact that 239 is also affected, I'm submitting it upstream. ** Attachment added: "bash script to reproduce the issue" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1811149/+attachment/5228725/+files/systemd-wg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1811149] Re: 23 wireguard peers hang systemd-networkd
** Description changed: I'm running Ubuntu 18.04.1 LTS with systemd=237-3ubuntu10.9. + Linux kernel version is 4.15.0-32-generic #35-Ubuntu SMP. + wireguard=0.0.20181218-wg1~bionic from PPA. I have a Wireguard-based VPN server that has several peers. As soon as number of peers is 22 or lower, everything works okay. As soon as I add the 23rd peer, restart of `systemd-networkd` service fails with timeout while systemd-networkd hogs CPU. Moreover, if I reboot the box while wireguard configuration is "broken", systemd-networkd fails to apply network settings on boot and the box is no longer accessible over the network. Configuration is structured in a following way (keys are fake): ==> wg0.netdev [NetDev] Name=wg0 Kind=wireguard Description=Wireguard VPN server [WireGuard] ListenPort=4500 PrivateKey=kNl7tkhCM1Crj8RhUIn8xvwcg+UoOkw26kQjQEtZk1k= [WireGuardPeer] PublicKey=AfM1AN4IIUe5AVypFg2pcNrQmqOtZQIJLgusbkDYXkI= AllowedIPs=fd6f:b446:a2ca:0400:cb6f:b446:a2ca:bd0b/128 AllowedIPs=fd6f:b446:a2ca:cb6f:b446:a2ca::/96 # and 22 more [WireGuardPeer] like that ==> wg0.network Name=wg0 [Network] Address=fd6f:b446:a2ca:0400::1/64 [Route] Destination=fd6f:b446:a2ca:cb6f:b446:a2ca::/96 # and 22 more [Route] sections like that syslog logs are attached both for "good" and "bad" cases, sample of strace logs is also attached for "bad" case. I'm filling the issue here as the aforementioned systemd version is already out of scope of upstream bug tracker per https://github.com/systemd/systemd/blob/master/docs/CONTRIBUTING.md #filing-issues -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811149 Title: 23 wireguard peers hang systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1811149/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
