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Sun, 16 Mar 2025 09:54:28 -0700 (PDT) Received: from localhost ([2601:646:9e00:f56e:2844:3d8f:bf3e:12cc]) by smtp.gmail.com with UTF8SMTPSA id d2e1a72fcca58-737116944f5sm5970967b3a.124.2025.03.16.09.54.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Mar 2025 09:54:27 -0700 (PDT) Date: Sun, 16 Mar 2025 09:54:27 -0700 From: Stanislav Fomichev To: ffhgfv Cc: davem , edumazet , kuba , pabeni , horms , kuniyu , bigeasy , jdamato , "aleksander.lobakin" , netdev , linux-kernel Subject: Re: Linux6.14-rc5: INFO: task hung in register_netdevice_notifier_net Message-ID: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On 03/16, ffhgfv wrote: > Hello, I found a bug titled " INFO: task hung in register_netdevice_notifier_net " with modified syzkaller in the Linux6.14-rc5. > If you fix this issue, please add the following tag to the commit: Reported-by: Jianzhou Zhao , xingwei lee , Zhizhuo Tang Haven't looked that deep, but it seems to involve a tunneling device, so I wonder whether it's gonna be fixed by: - https://patchwork.kernel.org/project/netdevbpf/patch/20250312190513.1252045-2-sdf@fomichev.me/ - https://patchwork.kernel.org/project/netdevbpf/patch/20250312190513.1252045-3-sdf@fomichev.me/ Do you have a repro? Can you rerun with the above fixes and enable lockdep?