From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF126C2D0C8 for ; Wed, 25 Dec 2019 04:55:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A15AB2072A for ; Wed, 25 Dec 2019 04:55:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lZlYpOLC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726388AbfLYEzr (ORCPT ); Tue, 24 Dec 2019 23:55:47 -0500 Received: from mail-lf1-f43.google.com ([209.85.167.43]:41815 "EHLO mail-lf1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726353AbfLYEzq (ORCPT ); Tue, 24 Dec 2019 23:55:46 -0500 Received: by mail-lf1-f43.google.com with SMTP id m30so16252066lfp.8 for ; Tue, 24 Dec 2019 20:55:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=x/KGAnBqN0iOCXgo89W/xGuF4AZmjPuIcnN5hd8NJPU=; b=lZlYpOLC8gEa0GYLVjlDg7axWZT/EiL/ZkY9P2C2gjQMY9KpDZRDGmTWKguXLj6Scl nDGrMG7v76ydRY6ODvmigOwVr7tEYNLI86Cbn1o98qUazBBFAiT051XOZBjl4dwmNRJG Q/zIhX/rZnOfQ4XPqY3pirsip5fsXxFiJuY0iZinAYNmUu2FlQ7Bc0J36NUfNqA9ikxK 6ij/yuXiJiS1YYv6Mj04PoWIhk6QRx+PudplKeZJ2Oh9ZIvcWPet2u8n9dbtW5SjMjFk zD2ihrIGu1HJkuqgem2cGndGjdjM0nGxHIiaCbmDdfv1py7Yg85WxuSxwPav9pccBthl nPrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=x/KGAnBqN0iOCXgo89W/xGuF4AZmjPuIcnN5hd8NJPU=; b=CpvsAb8mZ3+aqTTPIbgdnJVHTBbupepA5bK/gbj5VxmOyOQkxtBsCpBEfwJr2/SzQ5 ZRyTiYXTSuWrhTrEjQSdfboBlxxNkpaz0+Mgnl4cyOkZY+pwzm1aqWfjsQzF3sYRVNFj 0R+asT1ralf/yD+VjTzQ6vvCuEXwrlDkniZmyQav8Z6ehQZtjj9d9NnqcxWB04AhdXGk hWqELQjp8skvVmSw6jCHETXjZ9p96x8TTzMIh12Dd4m5FI0DBbSkm6T+CudNJF5VhSHX r4T2E2Xb+SYFdqvf34V4XxJicxbHsCxQscAk7zRSdF2Mz860dmMdnl2S2VkP09+m/Deb S2Hg== X-Gm-Message-State: APjAAAUDak9lLkVvJOvLqrfCaOjBKE9zT4OF/30+JqmSP6JxPJXAsk0Z p74kbmgpbQ/Kp3s2xX34YV/PpNoX9vagmA4A5grvpOd6rdo= X-Google-Smtp-Source: APXvYqwwUhqy7RkiZpLy/AHJzP5riNlsZhtP6ABStlqDWlaik+ewqP+eqW9IiSmx22mwQ8CwPjdnD+SXjbRDdKe5ZjM= X-Received: by 2002:ac2:54b4:: with SMTP id w20mr22543244lfk.67.1577249744655; Tue, 24 Dec 2019 20:55:44 -0800 (PST) MIME-Version: 1.0 From: Frank Huang Date: Wed, 25 Dec 2019 12:55:35 +0800 Message-ID: Subject: rxe panic To: linux-rdma@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org hi, there is a panic on rdma_rxe module when the restart network.service or shutdown the switch. it looks like a use-after-free error. everytime it happens, there is the log "rdma_rxe: Unknown layer 3 protocol: 0" is it a known error? my kernel version is 4.14.97 [448840.314544] rdma_rxe: Unknown layer 3 protocol: 0 [448840.314626] general protection fault: 0000 [#1] SMP PTI [448840.314627] Modules linked in: binfmt_misc ib_isert iscsi_target_mod ib_srpt target_core_mod rpcrdma ib_iser ib_srp scsi_transport_srp rdma_rxe(OE) ib_ipoib ib_umad ip6_udp_tunnel udp_tunnel rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs ib_core ebtable_filter ebtables devlink ip6table_filter ip6_tables ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink iptable_nat xt_addrtype xt_conntrack br_netfilter bridge stp llc overlay ip_set_hash_ip ip_set nfnetlink iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sch_ingress openvswitch nf_conntrack_ipv6 nf_nat_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_defrag_ipv6 nf_nat nf_conntrack libcrc32c sunrpc intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp vfat fat kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate [448840.314677] intel_uncore intel_rapl_perf mxm_wmi iTCO_wdt iTCO_vendor_support ipmi_ssif pcspkr i2c_i801 lpc_ich ipmi_si ipmi_devintf ipmi_msghandler pcc_cpufreq shpchp wmi ast drm_kms_helper ttm crc32c_intel drm ixgbe igb mdio ptp pps_core dca i2c_algo_bit [448840.314700] CPU: 1 PID: 17 Comm: ksoftirqd/1 Tainted: G OE 4.14.97-el7.centos.x86_64 #1 [448840.314701] Hardware name: /80010211 , BIOS 3.12 11/27/2018 [448840.314703] task: ffff9ce768af8000 task.stack: ffffbd7c4c6c4000 [448840.314710] RIP: 0010:rxe_elem_release+0xf/0x60 [rdma_rxe] [448840.314711] RSP: 0018:ffffbd7c4c6c7d28 EFLAGS: 00010246 [448840.314713] RAX: 0000000000000000 RBX: 2917351aae258b92 RCX: 0000000000000000 [448840.314714] RDX: ffff9cfb3f64ba40 RSI: 000000000000026c RDI: ffff9cfb3f678008 [448840.314715] RBP: ffff9cfb3f678000 R08: 0000000000000201 R09: ffffbd7c4df35000 [448840.314716] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [448840.314717] R13: 000000000000001d R14: 0000000000000006 R15: ffff9cfb3f678000 [448840.314719] FS: 0000000000000000(0000) GS:ffff9ce76f840000(0000) knlGS:0000000000000000 [448840.314720] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [448840.314721] CR2: 00007f4fc400f000 CR3: 000000260420a005 CR4: 00000000001626e0 [448840.314723] Call Trace: [448840.314730] rxe_responder+0xcf0/0x1fe0 [rdma_rxe] [448840.314738] ? check_preempt_wakeup+0x125/0x240 [448840.314742] ? check_preempt_curr+0x84/0x90 [448840.314745] ? ttwu_do_wakeup+0x19/0x140 [448840.314747] ? try_to_wake_up+0x54/0x450 [448840.314751] rxe_do_task+0x8b/0x100 [rdma_rxe] [448840.314754] tasklet_action+0xfe/0x110 [448840.314758] __do_softirq+0xd9/0x2a2 [448840.314761] run_ksoftirqd+0x1e/0x70 [448840.314763] smpboot_thread_fn+0x10e/0x160 [448840.314766] kthread+0xff/0x140 [448840.314768] ? sort_range+0x20/0x20 [448840.314770] ? __kthread_parkme+0x90/0x90 [448840.314771] ret_from_fork+0x35/0x40 [448840.314773] Code: 7a 00 00 74 04 31 c0 eb c3 4c 89 e7 e8 bb f9 ff ff 31 c0 eb b7 0f 1f 80 00 00 00 00 0f 1f 44 00 00 55 48 8d 6f f8 53 48 8b 5f f8 <48> 8b 43 20 48 85 c0 74 08 48 89 ef e8 60 1c 53 fb 8b 43 30 48 [448840.314817] RIP: rxe_elem_release+0xf/0x60 [rdma_rxe] RSP: ffffbd7c4c6c7d28