[SOLVED] - (tentatively) - glibc 2.41 breaks networking

Roken · 2025-01-30 20:40:45

!Took me a while (like, half an hour) to pinpoint this. Testing repos.

glibc 2.41 (and so by extension, lib32-glibc) breaks the network connection.

It still finds the nameserver, but that's it. I assume it's picked up from resolv.conf.

But apart from that, nada.

On my main desktop, using networkmanager and nm-tray, I can coax it into eventually connecting. On my secondary machine, using a much more minimal set up, no hope. Downgrading glibc (and the lib32) fixes.

Last edited by Roken (2025-02-02 12:29:23)

Roken · 2025-01-30 20:43:02

And I see Frederick has just posted about this package on arch-dev-public, but nothing to link to a network problem. Guess I should hold it back until other packages have been built against it.

freswa · 2025-01-30 20:55:35

"breaks networking" is a kinda broad statement

So what exactly is broken?
Do you get an IP?
Anything in dmesg?
How do you manage your network connection?

Roken · 2025-01-30 21:23:40

No IP, no nothing. All I get is the nameserver, which is picked up from resolv.conf. There is literally no connection at all, either LAN or WAN. No pings to LAN work, no pings to WAN work. I don't get a local IP and so I can't test my public IP. There might as well not be a cable connected.

On my main desktop (where I can eventually coax it into connecting) I use Networkmanager.

On my other, it's pretty much headless (OK, it has a desktop, and a monitor, but the only mouse/keyboard is using synergy - which of course doesn't work without a connection - emergency tiny USB keyboard was brought into play. That simply uses glib-networking.

Both are connected via ethernet.

Last edited by Roken (2025-01-30 21:27:43)

Roken · 2025-01-30 21:37:08

On the second machine (the less fully featured, but still with a functional desktop) if I grep installed packages with "network" (not case sensitive):

extra-testing/ethtool 1:6.11-1 (203.6 KiB 618.9 KiB) (Installed)
extra/openvpn 2.6.13-1 (630.0 KiB 1.7 MiB) (Installed)
extra/iperf3 3.17.1-1 (103.8 KiB 288.0 KiB) (Installed)
extra/kio 6.10.0-1 (5.5 MiB 21.7 MiB) [kf6] (Installed)
extra/signon-kwallet-extension 24.12.1-1 (14.5 KiB 34.5 KiB) [kde-applications kde-network] (Installed)
extra/wget 1.25.0-1 (737.6 KiB 3.3 MiB) (Installed)
extra/glib-networking 1:2.80.1-1 (140.4 KiB 660.5 KiB) (Installed)
extra/ethtool 1:6.9-1 (199.2 KiB 606.0 KiB) (Installed: 1:6.11-1)
extra/ntp 4.2.8.p18-2 (1.8 MiB 4.0 MiB) (Installed)
core/krb5 1.21.3-1 (1.3 MiB 4.5 MiB) (Installed)
core/iputils 20240905-1 (125.8 KiB 585.6 KiB) (Installed)
core/nfs-utils 2.8.2-2 (392.4 KiB 1.3 MiB) (Installed)
core/nss 3.107-1 (1.6 MiB 5.1 MiB) (Installed)

So not a lot delivering the network, there.

Scimmia · 2025-01-30 22:35:16

glib-networking doesn't configure your connection, what is actually doing that?'
How about logs?

Last edited by Scimmia (2025-01-30 22:36:59)

WorMzy · 2025-01-30 23:30:58

Mod note: moving to [testing].

Scimmia · 2025-01-31 23:35:36

https://gitlab.archlinux.org/archlinux/ … /issues/16 maybe?

Roken · 2025-02-02 12:28:25

I apologise for the delay coming back on this. In "real life" I'm a tax accountant in the UK, and 31st January deadline got in the way of everything else.

I did a test to confirm or deny dhcpcd, and lo and behold, network is fine again. AFAIK, neither dhcpcd nor glibc have been updated further since the problem appeared, so I can't say what was causing it, but I'm going to (tentatively) mark this as solved.

Thanks, guys.

Arch Linux

#1 2025-01-30 20:40:45

[SOLVED] - (tentatively) - glibc 2.41 breaks networking

#2 2025-01-30 20:43:02

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#3 2025-01-30 20:55:35

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#4 2025-01-30 21:23:40

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#5 2025-01-30 21:37:08

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#6 2025-01-30 22:35:16

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#7 2025-01-30 23:30:58

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#8 2025-01-31 23:35:36

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

#9 2025-02-02 12:28:25

Re: [SOLVED] - (tentatively) - glibc 2.41 breaks networking

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