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] <NMI> [<ffffffff8148ec62>] dump_stack+0x19/0x1b [ 940.235803] [<ffffffff8103c5dc>] warn_slowpath_common+0x5c/0x80 [ 940.241811] [<ffffffff8103c647>] warn_slowpath_fmt+0x47/0x50 [ 940.247555] [<ffffffff81090d34>] watchdog_overflow_callback+0x94/0xc0 [ 940.254088] [<ffffffff810a38fd>] __perf_event_overflow+0x8d/0x2b0 [ 940.260271] [<ffffffff810a26b9>] ? perf_event_update_userpage+0x19/0x100 [ 940.267061] [<ffffffff810a4294>] perf_event_overflow+0x14/0x20 [ 940.272988] [<ffffffff810144de>] intel_pmu_handle_irq+0x1de/0x370 [ 940.279172] [<ffffffff8100e89b>] perf_event_nmi_handler+0x2b/0x50 [ 940.285352] [<ffffffff81006098>] do_nmi+0x118/0x420 [ 940.290315] [<ffffffff81492b8a>] end_repeat_nmi+0x1e/0x2e [ 940.295804] <<EOE>> [ 940.297902] ---[ end trace 3ff3d9e5ad439b5f ]--- -- Sincerely yours, threesmaller