Subject: [TEST] nft_queue / test_udp_gro_ct flakes

From: Jakub Kicinski <[email-masked]>
Date: Wed, 18 Feb 2026 18:41:14 -0800

On Fri,  6 Feb 2026 16:30:40 +0100 Florian Westphal wrote:
> Without the preceding patch, this fails with:
> 
> FAIL: test_udp_gro_ct: Expected udp conntrack entry
> FAIL: test_udp_gro_ct: Expected software segmentation to occur, had 10 and 0

Hi Florian!

This test case is a bit flaky for us on debug kernels:

https://netdev.bots.linux.dev/contest.html?pass=0&test=nft-queue-sh

It's 3rd flakiest of all netdev selftests at this point.

Example:

# 2026/02/12 10:14:22 socat[20338] W exiting on signal 15
# 2026/02/12 10:14:22 socat[20383] W exiting on signal 15
# FAIL: test_udp_gro_ct: Expected software segmentation to occur, had 12 and 10