From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f169.google.com (mail-ob0-f169.google.com [209.85.214.169]) by dpdk.org (Postfix) with ESMTP id 06014C750 for ; Wed, 29 Apr 2015 04:51:22 +0200 (CEST) Received: by oblw8 with SMTP id w8so10936910obl.0 for ; Tue, 28 Apr 2015 19:51:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=cTkxoJr8VGPcbShZLyagesE5Y6m+Do4sKZg6wkRnitM=; b=yAAkf9YHHXvSFxZvPrtrCWxpJluUM9ilv8KftgB07dfbGWw6eEi9uqiqjiuEh0QfzL gVdJk9bMRHJQBSRFOVxHJTa6utiIiTwIrXgJCNsc6AQclim2VfCwUVoOEtmHXSQ4t3Bj XTdAaR9D31fMN7VQqLnhuZA8a+a76ljMJ+wQYmZ+Bh1JY7IbfulQ25ytILzKr3R/NObO LVDj2f1M+prS6US32ZkGxBNRHrDExPhFq4hFCYjq8SimsmReFGsrFRgXp+uoyvrsWL1+ bF4Ip5d87fQCxR8KylRk4VbzQ7W9rGRGiwPPNfvXyU48fjxrHJ4ERF+ZS2vY0ll6YzGN 42FQ== MIME-Version: 1.0 X-Received: by 10.182.163.52 with SMTP id yf20mr17036284obb.69.1430275881283; Tue, 28 Apr 2015 19:51:21 -0700 (PDT) Received: by 10.60.54.228 with HTTP; Tue, 28 Apr 2015 19:51:21 -0700 (PDT) Date: Wed, 29 Apr 2015 10:51:21 +0800 Message-ID: From: =?UTF-8?B?6Zmz5pS/5p+P?= To: dev@dpdk.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] NMI Watchdog warning X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Apr 2015 02:51:22 -0000 Hi,all When I enabled nmi_watchdog, and I get following warning messages. How can I resolve it? Kernel version is 3.10.52 [ 940.093592] ------------[ cut here ]------------ [ 940.098218] WARNING: at kernel/watchdog.c:245 watchdog_overflow_callback+0x94/0xc0() [ 940.105960] Watchdog detected hard LOCKUP on cpu 3 [ 940.110583] Modules linked in: nf_conntrack_netlink udptap(O) nf_conntrack_ipv6 xt_socket nf_defrag_ipv6 xt_mac ip6table_mangle nf_nat_proto_udplite nf_conntrack_proto_udplite nf_nat_proto_sctp nf_conntrack_proto_sctp nf_nat_tftp nf_conntrack_tftp nf_conntrack_h323 nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre xt_hashlimit xt_mconnlimit xt_CT xt_TCPMSS ipt_REJECT ipt_MASQUERADE xt_REDIRECT xt_multiport ipt_ULOG xt_NFLOG nfnetlink_log ip6table_filter xt_set(O) xt_mark xt_connmark xt_conntrack xt_ifgroup iptable_raw ip_gre ip_tunnel gre ip_set_hash_ip(O) ip_set_hash_netiface(O) ip_set_hash_net(O) ip_set(O) nfnetlink nf_nat_ftp nf_conntrack_ftp xt_recent iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_filter coretemp bridge dummy rte_kni(O) igb_uio(O) uio_pci_generic uio ixgbe(O) igb(O) e1000e(O) [ 940.188695] CPU: 3 PID: 1261 Comm: XXX Tainted: G W O 3.10.52 #1 [ 940.205210] 0000000000000009 ffff88087f8c6c78 ffffffff8148ec62 ffff88087f8c6cb0 [ 940.212667] ffffffff8103c5dc ffff88085f834c00 0000000000000000 ffff88087f8c6dd8 [ 940.220126] ffff88087f8c6ef8 0000000000000000 ffff88087f8c6d10 ffffffff8103c647 [ 940.227586] Call Trace: [ 940.230032] [] dump_stack+0x19/0x1b [ 940.235803] [] warn_slowpath_common+0x5c/0x80 [ 940.241811] [] warn_slowpath_fmt+0x47/0x50 [ 940.247555] [] watchdog_overflow_callback+0x94/0xc0 [ 940.254088] [] __perf_event_overflow+0x8d/0x2b0 [ 940.260271] [] ? perf_event_update_userpage+0x19/0x100 [ 940.267061] [] perf_event_overflow+0x14/0x20 [ 940.272988] [] intel_pmu_handle_irq+0x1de/0x370 [ 940.279172] [] perf_event_nmi_handler+0x2b/0x50 [ 940.285352] [] do_nmi+0x118/0x420 [ 940.290315] [] end_repeat_nmi+0x1e/0x2e [ 940.295804] <> [ 940.297902] ---[ end trace 3ff3d9e5ad439b5f ]--- -- Sincerely yours, threesmaller