netdev - Re: [PATCH net v2 0/2] Silence bad offload warning when sending UDP GSO with IPv6 extension headers

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Message-ID: <87ikwjyxvl.fsf@cloudflare.com>
Date: Fri, 02 Aug 2024 13:20:30 +0200
From: Jakub Sitnicki <jakub@...udflare.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org,  "David S. Miller" <davem@...emloft.net>,  Eric
 Dumazet <edumazet@...gle.com>,  Paolo Abeni <pabeni@...hat.com>,  Willem
 de Bruijn <willemb@...gle.com>,  kernel-team@...udflare.com,
  syzbot+e15b7e15b8a751a91d9a@...kaller.appspotmail.com
Subject: Re: [PATCH net v2 0/2] Silence bad offload warning when sending UDP
 GSO with IPv6 extension headers

On Thu, Aug 01, 2024 at 06:36 PM -07, Jakub Kicinski wrote:
> On Thu, 01 Aug 2024 15:52:52 +0200 Jakub Sitnicki wrote:
>> This series addresses a recent regression report from syzbot [1].
>> Please see patch 1 description for details.
>
> The test doesn't seem super happy in netdev CI:
>
> https://netdev-3.bots.linux.dev/vmksft-net-dbg/results/709100/79-udpgso-sh/stdout
> https://netdev-3.bots.linux.dev/vmksft-net/results/709101/78-udpgso-sh/stdout
> https://netdev-3.bots.linux.dev/vmksft-net-dbg/results/708921/75-udpgso-sh/stdout
> https://netdev-3.bots.linux.dev/vmksft-net/results/708921/78-udpgso-sh/stdout

Embarassing. I must have not recompiled the tests after tweaking it.
Sorry for the oversight. I will deal with it.

Reproduces for me locally:

[pid   507] setsockopt(4, SOL_IPV6, IPV6_HOPOPTS, NULL, 0) = 0
[pid   507] recvfrom(3, 0x55fcf63813a0, 65535, 0, NULL, NULL) = -1 EAGAIN (Resource temporarily unavailable)