Subject: Re: [PATCH net-next 2/9] selftests: netfilter: nft_queue.sh: sctp coverage

From: Jakub Kicinski <[email-masked]>
Date: Mon, 26 Aug 2024 19:25:00 -0700

On Fri, 23 Aug 2024 00:19:32 +0200 Pablo Neira Ayuso wrote:
> From: Antonio Ojea <[email-masked]>
> 
> Test that nfqueue with and without GSO process SCTP packets correctly.
> 
> Joint work with Florian and Pablo.

This is unhappy on a debug kernel in netdev CI:

# 2024/08/26 17:38:31 socat[12451] E write(7, 0x563837a56000, 8192): Cannot send after transport endpoint shutdown
# Binary files /tmp/tmp.ZZAJtF9z9R and /tmp/tmp.hS8W1Te84V differ
# FAIL: lost packets?!

https://netdev-3.bots.linux.dev/vmksft-nf-dbg/results/745281/2-nft-queue-sh/stdout

Works fine on a non-debug kernel tho:

https://netdev-3.bots.linux.dev/vmksft-nf/results/745282/5-nft-queue-sh/stdout

so gotta be some race.

Please follow up soon, I'll disable this test case for now.