From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7315D606A329 for ; Fri, 6 Nov 2026 12:50:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=GjlUH9L/; dkim=pass (2048-bit key, unprotected) header.d=sntech.de header.i=@sntech.de header.a=rsa-sha256 header.s=gloria202408 header.b=WHEv8Bmz DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=FBjIBgDWbZCo9SaA6U+cSq8TU+erFs29CF/2hr/QbOQ=; b=GjlUH9L/EsojHc5d1meYvoLg5r 4bAPruyOtASmYnI/o/TjyfB3eycNbIoE1FmGr6cTrj/3yFqcnEMBX5h+aH99Dvp9nZY1P5XGLbAvD qlaciV6xLMouofC7I8mlW0NaRrQR/lgYIo1l17zLvweW2S9S8c2x1kXG/gf6EA287zvblq5LHGafc glVdMRlTtdgLVqnsl1mgGKr22VPwBxtxgWVGnsbJWK14mMClMyN1nDwXjoRTeqd5M3qDMeRLAF3AK oei01qO45esxMFqPHo/e3mZnD0KiNLbxzG/nmkZT7h3/EgeQkS0jkSyhHxOPQ+4J/uEtjDQnrseBP 3bgdPSrQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xPJP1-0000000CLv3-20CU; Fri, 06 Nov 2026 12:50:43 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xPJOx-0000000CLuH-3kBj; Fri, 06 Nov 2026 12:50:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=FBjIBgDWbZCo9SaA6U+cSq8TU+erFs29CF/2hr/QbOQ=; b=WHEv8BmzZlBskbtiRsC4Yz/6tF lVJsH/z7pFdPbcrteUfO96lrIzu6yFa42ask2ACLtB8O6uGMAjJ5FkSqxMKs8yMyT7o7Hs0ZuH/2N 4GkPXRnZ7UYI7WmuDLcVG55y5hJJHUVGaRsnVFAvyX9zV/fjb9Uw1RfdJCS97gPuNrho07j/aW+1F pOJern4i9oeuE7j8otJl9949EwHRfUv+7LRx9Kd4TbmcROCdlLLufc3Qteg0RmyjsU3rG6JeoPs2K k++dAKZdxZIbbcOTn+0G93w14T0clcHEu2gUYgi3SOM1wcSDowGQdPNb/nXXKvmf4sWXrtqwqUcHH TaIrvW+A==; From: Heiko =?UTF-8?B?U3TDvGJuZXI=?= To: Marc Kleine-Budde , Vincent Mailhol , "David S. Miller" , Wolfgang Grandegger , Oliver Hartkopp , kernel@pengutronix.de, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jonathan Corbet , Shuah Khan , Randy Dunlap , 1579567540@qq.com Cc: Cunhao Lu <1579567540@qq.com>, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH net v7 0/7] can: fix bus-off restart and device close races Date: Fri, 06 Nov 2026 13:50:20 +0100 Message-ID: <16255046.uLZWGnKmhe@diego> In-Reply-To: <20261106-rockchip-canfd-restart-close-v7-0-accdb11bc845@qq.com> References: <20261106-rockchip-canfd-restart-close-v7-0-accdb11bc845@qq.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261106_045040_173631_18B4C159 X-CRM114-Status: GOOD ( 13.87 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-5.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hi, Am Freitag, 6. November 2026, 10:37:19 Mitteleurop=C3=A4ische Normalzeit sc= hrieb Cunhao Lu via B4 Relay: > This work started from a real failure on a production robot using a > LubanCat-5IO with an RK3588. RX continued, but the TX queue remained > stopped and subsequent sends returned ENOBUFS. The interface still > reported ERROR-ACTIVE, and the hardware indicated neither a bus-off > condition nor a pending TX request. [...] > This series depends on the three patches in "can: skb: make CAN skb > freeing safe in any IRQ context" [1] and the three patches in "can: > rockchip_canfd: fix TX stalls and races" [2]. >=20 > [1] https://lore.kernel.org/linux-can/tencent_CD05F020BAFB2537F5D1F4CBB42= 5588EA80A@qq.com/ > [2] https://lore.kernel.org/linux-can/tencent_E25C9BE6689264E4138A464803B= 810FDFD09@qq.com/ Both these series are from july and seemingly from before you started using the b4-relay. So they may or may not have survived the kernel releases and their threading is broken both on lore and in any maibox they arrived in. And if there haven't been any responses to them since then, I'd think they have been lost or so. So I'd suggest rolling both your dependencies forward on top of the can tree and sending them as a new version, so that reviewers can find them? Heiko