From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 81EA83B1EF2 for ; Tue, 23 Jun 2026 21:50:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782251427; cv=none; b=A8up/MHytPOHRSWpASMto0VfjdH90zs29ryYzvGtUHADuwoEnfE9gTmg6JIounDDdZ9u2hsUddJbHGlTb6Gl/f82XwDaUrNjh+nDiqI/51+0phtULj9Dtb2TamPNcA0tKGo+VXTCFBTuu50kzo9V5ZH9R4qRESVAWpfzvprCVlE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782251427; c=relaxed/simple; bh=npSfEjlpqzjgo38wldhgXCTvwEfDvuUydJIQYo7rab0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=OzCI0Xc0bTXUzaJiW9RwpeMEQnP/SzTIBGo+I3LoHM9weGavkyKLJueWKZC6QZfOGaFfG8VCNxwuX9LePIedreMo9XDdQBF0f3C+PHofqi+1jgRVorhVvTzQXqcx843OEKORRld07hQ359FL2Og2qvts8+JQGFhDk1pLWBIMF+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=catHd3nG; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="catHd3nG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33E891F000E9; Tue, 23 Jun 2026 21:50:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782251426; bh=ggRTL6oZ5lbaOF9NGGG0bE9/K8OX87/xneGSMvldiWQ=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=catHd3nGN2CbXSZXI+ABwTpHkSRawhucIplCLDKwGtoSETnAGa64QDT+IBXbUbTqL GkTcQV1yvDV5Ot/3rdmCkNEQFkZME4L0r2+B6Kt+3tWXedd7oOGOMtk8KMV8DuQhYJ 8vDUNVYleL6p15AvwePm0/eosARHz19WrLOuvMSUWQbbuiV1Q0YCeh+MXULvrAdXml 9InbIsqhlo837QAIPVZuABuF4po8yIgDCHt5p744tr9dGVUbTpB2MpVseUrJq4+0Gk 7gPIhOfMgFG9VO9T7VCiRJCcEMp/3GFYRTfQai+rsVk6c3ovf3dy6Cof/eOFzmxFWG d71u9Vb17MDMA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D08AA393101D; Tue, 23 Jun 2026 21:50:16 +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 net] net: do not acquire dev->tx_global_lock in netdev_watchdog_up() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178225141531.2433118.17068127211611515028.git-patchwork-notify@kernel.org> Date: Tue, 23 Jun 2026 21:50:15 +0000 References: <20260622110108.69541-1-edumazet@google.com> In-Reply-To: <20260622110108.69541-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, netdev@vger.kernel.org, eric.dumazet@gmail.com, m.szyprowski@samsung.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 22 Jun 2026 11:01:08 +0000 you wrote: > Marek Szyprowski reported a deadlock during system resume when virtio_net > driver is used. > > The deadlock occurs because netif_device_attach() is called while holding > dev->tx_global_lock (via netif_tx_lock_bh() in virtnet_restore_up()). > netif_device_attach() calls __netdev_watchdog_up(), which now also tries > to acquire dev->tx_global_lock to synchronize with dev_watchdog(). > > [...] Here is the summary with links: - [net] net: do not acquire dev->tx_global_lock in netdev_watchdog_up() https://git.kernel.org/netdev/net/c/d09a78a2a469 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html