"getaddrinfo() failed" Being spaamed on logs

[klabacher]

Windows Version

Microsoft Windows [versão 10.0.26100.7171]

WSL Version

2.6.2.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

6.6.87.2-microsoft-standard-WSL2

Distro Version

Ubuntu-24.04

Other Software

Docker Engine installed on distro - version 29.0.0, build 3d4129b
VSCode - 1.106.3 - x64

System is a x64 - LENOVO_MT_82MD_BU_idea_FM_IdeaPad 3 15ITL6

.wslconfig:

[wsl2]
memory=10GB
processors=6
swap=16GB
debugConsole=true

networkingMode=mirrored

guiApplications=true

/etc/wsl.conf:

[boot]
systemd=true

[network]
generateHosts=true
generateResolvConf=true
hostname=dev-ubuntu

[user]
default=user

Repro Steps

Installed ubuntu with wsl cmd installer, used it normaly
Started to have network issues and dropping connections only on wsl
Modded .wslconfig and added debudmode
Found on WSL Debug Console, this spam and network still drops sometimes

In other computer the same error message on debug console but network works

[ 7166.408706] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET]
CheckConnection: connecting to 200.211.3.34
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET6]
[ 7166.410109] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: arming select for 5 seconds
CheckConnection: v4 succeeded
CheckConnection: returning v4 (1) v6 (2)
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET]
[ 7172.090435] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET6]
[ 7172.175763] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET]
CheckConnection: connecting to 200.211.3.26
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET6]
[ 7172.177845] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: arming select for 5 seconds
CheckConnection: v4 succeeded
CheckConnection: returning v4 (1) v6 (2)
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET]
[ 7228.290802] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET6]
[ 7228.333618] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)

Expected Behavior

Normal usage and no errors on debug console, normal network usage

Actual Behavior

Network drops and errors are spammed

This occurs especialy when doing intensive networking, like docker net operations, or git/wget big file/s upload/download

[ 7166.408706] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET]
CheckConnection: connecting to 200.211.3.34
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET6]
[ 7166.410109] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: arming select for 5 seconds
CheckConnection: v4 succeeded
CheckConnection: returning v4 (1) v6 (2)
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET]
[ 7172.090435] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET6]
[ 7172.175763] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET]
CheckConnection: connecting to 200.211.3.26
CheckConnection: resolving the name www.msftconnecttest.com [AF_INET6]
[ 7172.177845] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: arming select for 5 seconds
CheckConnection: v4 succeeded
CheckConnection: returning v4 (1) v6 (2)
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET]
[ 7228.290802] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: resolving the name ipv6.msftconnecttest.com [AF_INET6]
[ 7228.333618] WSL (204) ERROR: CheckConnection: getaddrinfo() failed: -5
CheckConnection: returning v4 (2) v6 (2)

Diagnostic Logs

No response

[github-actions]

Logs are required for review from WSL team

If this a feature request, please reply with '/feature'. If this is a question, reply with '/question'.
Otherwise, please attach logs by following the instructions below, your issue will not be reviewed unless they are added. These logs will help us understand what is going on in your machine.

How to collect WSL logs

Download and execute collect-wsl-logs.ps1 in an administrative powershell prompt:

Invoke-WebRequest -UseBasicParsing "https://raw.githubusercontent.com/microsoft/WSL/master/diagnostics/collect-wsl-logs.ps1" -OutFile collect-wsl-logs.ps1
Set-ExecutionPolicy Bypass -Scope Process -Force
.\collect-wsl-logs.ps1

The script will output the path of the log file once done.

If this is a networking issue, please use collect-networking-logs.ps1, following the instructions in Collect WSL logs for networking issues

Once completed please upload the output files to this GitHub issue.

See Collect WSL logs (recommended method).

If you choose to email these logs instead of attaching them to the bug, please send them to wsl-gh-logs@microsoft.com with the GitHub issue number in the subject, and include a link to your GitHub issue comment in the message body, and reply with '/emailed-logs'.

[benhillis]

There are currently some issues with mirrored networking due to a recent Windows update, I'd suggest using NAT for now.