From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 1F80CA00BE; Mon, 28 Oct 2019 15:53:52 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E461D1BF24; Mon, 28 Oct 2019 15:53:50 +0100 (CET) Received: from inbox.dpdk.org (xvm-172-178.dc0.ghst.net [95.142.172.178]) by dpdk.org (Postfix) with ESMTP id 79D481BEDC for ; Mon, 28 Oct 2019 15:53:49 +0100 (CET) Received: by inbox.dpdk.org (Postfix, from userid 33) id 63BE1A00C0; Mon, 28 Oct 2019 15:53:49 +0100 (CET) From: bugzilla@dpdk.org To: dev@dpdk.org Date: Mon, 28 Oct 2019 14:53:49 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: ethdev X-Bugzilla-Version: 19.08 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: michael.pfeiffer@tu-ilmenau.de X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 Subject: [dpdk-dev] [Bug 358] KNI packets dropped on ARM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" https://bugs.dpdk.org/show_bug.cgi?id=3D358 Bug ID: 358 Summary: KNI packets dropped on ARM Product: DPDK Version: 19.08 Hardware: ARM OS: Linux Status: UNCONFIRMED Severity: normal Priority: Normal Component: ethdev Assignee: dev@dpdk.org Reporter: michael.pfeiffer@tu-ilmenau.de Target Milestone: --- Our DPDK application sends some management packets to a KNI device to be processed by another applicton. This works fine on x86, but on an ARM Box (Mellanox Bluefield, Kernel 4.20.17), all frames to the KNI are dropped, including Pings, ARP, NDP, and so on. The frames are still visible for tcpdump (and seem ok there), but are not processed any further. A perf on del_skb gives the following backtrace: > kni_single 9643 [015] 699.450949: skb:kfree_skb: > skbaddr=3D0xffff8003fc406100 > protocol=3D0 location=3D0xffff000008c9f4bc > ffff000008c846b8 kfree_skb+0xc8 ([kernel.kallsyms]) > ffff000008c846b8 kfree_skb+0xc8 ([kernel.kallsyms]) > ffff000008c9f4bc __netif_receive_skb_core+0x674 ([kernel.kallsyms= ]) > ffff000008c9fa04 __netif_receive_skb_one_core+0x4c > ([kernel.kallsyms]) > ffff000008c9fab0 __netif_receive_skb+0x28 ([kernel.kallsyms]) > ffff000008c9fbac process_backlog+0xa4 ([kernel.kallsyms]) > ffff000008ca026c net_rx_action+0x10c ([kernel.kallsyms]) > ffff000008081ce8 __softirqentry_text_start+0x118 ([kernel.kallsym= s]) > ffff0000080f0b7c do_softirq.part.3+0x54 ([kernel.kallsyms]) > ffff0000080f0c74 do_softirq+0x24 ([kernel.kallsyms]) > ffff000008c9e94c netif_rx_ni+0x124 ([kernel.kallsyms]) > ffff000000e6b570 kni_net_rx_normal+0x1f8 ([rte_kni]) > ffff000000e6c428 kni_net_rx+0x28 ([rte_kni]) > ffff000000e6ab70 kni_thread_single+0x68 ([rte_kni]) > ffff0000081109d4 kthread+0x134 ([kernel.kallsyms]) > ffff000008085f54 ret_from_fork+0x10 ([kernel.kallsyms]) Please let me know if there is any further information I could provide. --=20 You are receiving this mail because: You are the assignee for the bug.=