netdev - Re: [PATCH RFC net] net: sockmap: avoid race between sock_map_destroy() and sk_psock

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Message-ID: <1ae54555-0998-4c76-bbb3-60e9746f9688@yandex.ru>
Date: Wed, 11 Sep 2024 12:51:04 +0300
From: Dmitry Antipov <dmantipov@...dex.ru>
To: Cong Wang <xiyou.wangcong@...il.com>
Cc: John Fastabend <john.fastabend@...il.com>,
 Jakub Sitnicki <jakub@...udflare.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
 lvc-project@...uxtesting.org
Subject: Re: [PATCH RFC net] net: sockmap: avoid race between
 sock_map_destroy() and sk_psock_put()

On 9/11/24 7:32 AM, Cong Wang wrote:

> I never tested the RDS code (hence why I didn't post it). But for the warning
> itself, actually disabling CONFIG_RDS made it disappear on my side, yet
> another reason why I suspect it is RDS related.

OTOH sockmap code depends from CONFIG_BPF_SYSCALL. So I'm pretty sure that
there are more sockmap users beyond RDS and turning off CONFIG_RDS by itself
is not too useful for further investigations of this case.

Dmitry