Hi, I ran some tests and the problem seems to be with Tailscale's login functionality. If you use version 1.84.2 (front 7.7 branch) to log in and then upgrade to the latest version, it will continue to work. I filled na issue on GitHub to try to get help ( https://github.com/tailscale/tailscale/issues/17209).
The buffer space error doesn't seem to be a real issue, since the message also appears in version 1.84.2, the last one I was able to get fully working. Adriano Barbosa Sent from my phone. Sorry for typos. Em qui., 11 de set. de 2025 às 14:00, requiem. <[email protected]> escreveu: > Dear Misc@, > > I am getting some funny behaviour from tailscale (v1.86.2 using > Go 1.25.1) on -current. This is on a fresh install on amd64, and I have > had this happen both on my (amd64) and in a VM (also amd64): > > > # rcctl enable tailscaled && rcctl start tailscaled > > tailscaled(ok) > > # tailscale up > > Post "http://local-tailscaled.sock/localapi/v0/login-interactive": EOF > > And if I try to run tailscaled on its own in the foreground, then I see > the following errors: > > > magicsock: failed to set UDP read buffer size to 7340032: set udp6 > > [::]:36352: setsockopt: no buffer space available magicsock: failed > > to set UDP write buffer size to 7340032: set udp6 [::]:36352: > > setsockopt: no buffer space available onPortUpdate(port=29858, > > network=udp4) > > magicsock: failed to set UDP read buffer size to 7340032: set udp4 > > 0.0.0.0:29858: setsockopt: no buffer space available magicsock: > > failed to set UDP write buffer size to 7340032: set udp4 > > 0.0.0.0:29858: > > setsockopt: no buffer space available > > I am not quite sure why this is happening. On my desktop tailscale has > been running fine on the following: > > > $sysctl kern.version > > kern.version=OpenBSD 7.7-current (GENERIC.MP) #25: Mon Sep 8 10:44:36 > > MDT 2025 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > $ tailscale version 1.86.2 > > long version: 1.86.2 > > go version: go1.25.0 > > Is there something I am missing? I did not see anything mentioned in > the install notes, and it used to "just work". > > Thanks for any comments, > > rqm > >
