From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68A1444B67A for ; Thu, 7 May 2026 15:51:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778169065; cv=none; b=YiZrS0VlFqGRN0T6kMWxgB/Q++gn2Hk+hlUgB2gINZnWbv3K0ydGK9p2IwgN7NNNeYkQZq0cYARrM0r1jmhGfMSNlzNlYuw0eQy4NRh0gjmk19PnZO3Zjx7YFnwgoJ2M8yhppbOwqYlvI/KeKhgkaJY0sbesVBV3aSKERBHXemE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778169065; c=relaxed/simple; bh=3v6IxUH82rV9kEOsgKaUNpLlcLs4FWQetg5EG+aISS0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=LI7GpRx2NlNHlVyBG46U6w6HCXJuRqVT2dhGmtNTqBKXnRQbV7tqWXi9vXEDXpBMABr+rFhXQ2Np1Bs+rlQM0VuR/4//oI7i+9+hBPrg7bqKVvbTUFv0Dj7ecFUFLWUrvuxGZI61aQ+vEI9KCAiDn9fxXz3J21V+Fx7JLLojVjA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fHVido9h; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fHVido9h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10236C2BCC4; Thu, 7 May 2026 15:51:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778169065; bh=3v6IxUH82rV9kEOsgKaUNpLlcLs4FWQetg5EG+aISS0=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=fHVido9hwcevHBk7letmfdQ0i41mhZKK9C1EAh/ZGQIkWc0qedwO8Zj1eT4x8VJ7o GvK/IuGaeZQbfY53Wdvtf1YUB7sJWe7p3ei4sFRg+mIp00MRv+TQ3lJa/SvPoowiRR v2N6qdTm6l1wjQ+ZD1f/YDEgN7rREpB1LuxcUx0H88TyYuSgVTdlZ1WK4igynGkfik LPXC5fNrMoHh0HsRKw78BcEqyaxWf7YSOJq58RR77BoyparMtCmAyxdBxY3L9lwgg0 W6NHhEu4ciwQyEh/2KkrfTqG6Zc7DJ1SI9gMru6Bxjko33J2fGg0G/Noj6YNU28fi0 ZPywS7VYkzjWw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 7CC4D3930909; Thu, 7 May 2026 15:50:15 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v1 net] ipmr: Call ipmr_fib_lookup() under RCU. From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177816901429.4048611.16793001834053100372.git-patchwork-notify@kernel.org> Date: Thu, 07 May 2026 15:50:14 +0000 References: <20260506065955.1695753-1-kuniyu@google.com> In-Reply-To: <20260506065955.1695753-1-kuniyu@google.com> To: Kuniyuki Iwashima Cc: dsahern@kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, kuni1840@gmail.com, netdev@vger.kernel.org, syzkaller@googlegroups.com, yi1.lai@intel.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 6 May 2026 06:59:53 +0000 you wrote: > Yi Lai reported RCU splat in reg_vif_xmit() below. [0] > > When CONFIG_IP_MROUTE_MULTIPLE_TABLES=n, ipmr_fib_lookup() > uses rcu_dereference() without explicit rcu_read_lock(). > > Although rcu_read_lock_bh() is already held by the caller > __dev_queue_xmit(), lockdep requires explicit rcu_read_lock() > for rcu_dereference(). > > [...] Here is the summary with links: - [v1,net] ipmr: Call ipmr_fib_lookup() under RCU. https://git.kernel.org/netdev/net/c/019c892e4654 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html