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Message-ID: <20230227233155.GA6107@breakpoint.cc> Date: Tue, 28 Feb 2023 00:31:55 +0100 From: Florian Westphal <fw@...len.de> To: Alexander Atanasov <alexander.atanasov@...tuozzo.com> Cc: Florian Westphal <fw@...len.de>, netdev@...r.kernel.org, Pablo Neira Ayuso <pablo@...filter.org>, Jozsef Kadlecsik <kadlec@...filter.org>, Eric Dumazet <edumazet@...gle.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com> Subject: Re: [PATCH] netfilter: nf_tables: always synchronize with readers before releasing tables Alexander Atanasov <alexander.atanasov@...tuozzo.com> wrote: > As i said i am still trying to figure out the basechain place, > where is that synchronize_rcu() call done? cleanup_net() in net/core/net_namespace.c. pre_exit handlers run, then synchronize_rcu, then the normal exit handlers, then exit_batch. > > Do you see this with current kernels or did the splat happen with > > an older version? > > It's with a bit older kernel but there is no significant difference > wrt nf_tables_api code. > I will prepare a more detailed report for you. Thanks.
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