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From: Cong Wang <xiyou.wangcong@gmail.com>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: John Fastabend <john.fastabend@gmail.com>,
	Jakub Sitnicki <jakub@cloudflare.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, lvc-project@linuxtesting.org
Subject: Re: [PATCH RFC net] net: sockmap: avoid race between sock_map_destroy() and sk_psock_put()
Date: Tue, 10 Sep 2024 21:32:56 -0700	[thread overview]
Message-ID: <ZuEdeDBHKj1q9NlV@pop-os.localdomain> (raw)
In-Reply-To: <5d23bd86-150f-40a3-ab43-a468b3133bc4@yandex.ru>

On Mon, Sep 09, 2024 at 10:04:21AM +0300, Dmitry Antipov wrote:
> On 9/8/24 9:36 PM, Cong Wang wrote:
> 
> > Are you sure it is due to sockmap code?
> 
> No, and that's why my patch has RFC tag in subject :-).
> 
> > I see rds_tcp_accept_one() in the stack trace. This is why I highly
> > suspect that it is due to RDS code instead of sockmap code.
> > 
> > I have the following patch ready for testing, in case you are
> > interested.
> 
> Does it work for you? Running current upstream with this patch applied,
> I'm still seeing the same warning at net/core/sock_map.c:1663.

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.

Thanks.

  reply	other threads:[~2024-09-11  4:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-05  6:42 [PATCH RFC net] net: sockmap: avoid race between sock_map_destroy() and sk_psock_put() Dmitry Antipov
2024-09-08 18:36 ` Cong Wang
2024-09-09  7:04   ` Dmitry Antipov
2024-09-11  4:32     ` Cong Wang [this message]
2024-09-11  9:51       ` Dmitry Antipov
2024-09-11 16:45         ` Cong Wang
2024-09-12 15:59           ` Dmitry Antipov
2024-09-14  0:34             ` Cong Wang
2024-09-18 15:42               ` Dmitry Antipov

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