ping...
On Wed, Jul 22, 2015 at 11:55 AM, Jovi Zhangwei <j...@cloudflare.com> wrote: > Hi Neal and Martin, > > Sorry for disturbing, our production system(3.14 and 3.18 stable > kernel) have many tcp_fragment warnings, > the trace is same as below one which you discussed before. > > http://comments.gmane.org/gmane.linux.network/365658 > > But I didn't found the final solution in that mail thread, do you have > any new ideas or patches on this warning? > > Great thanks. > > > [5184217.672290] WARNING: CPU: 9 PID: 2801 at > net/ipv4/tcp_output.c:1081 tcp_fragment+0x34/0x230() > [5184217.680995] Modules linked in: sfc_char(O) sfc_resource(O) > sfc_affinity(O) nf_conntrack_netlink xt_connlimit xt_length xt_bpf > xt_hashlimit iptable_nat nf_nat_ipv4 nf_nat iptable_mangle xt_comment > ip6table_security ip6table_mangle ip_set_hash_netport 8021q garp bridg > e stp llc ipmi_devintf nf_conntrack_ipv6 nf_defrag_ipv6 > ip6table_filter ip6table_raw ip6_tables nf_conntrack_ipv4 > nf_defrag_ipv4 xt_NFLOG nfnetlink_log xt_conntrack iptable_filter > xt_tcpudp xt_multiport xt_CT nf_conntrack xt_set iptable_raw ip_tables > x_tables ip_set_hash > _net ip_set_hash_ip ip_set nfnetlink rpcsec_gss_krb5 auth_rpcgss > oid_registry nfsv4 fuse nfsv3 nfs_acl nfs fscache lockd sunrpc > tcp_cubic sg sfc(O) mtd mdio igb dca i2c_algo_bit ptp pps_core sd_mod > crct10dif_generic crc_t10dif crct10dif_common x86_pkg_temp_thermal > acpi_c > pufreq coretemp kvm_intel kvm crc32c_intel aesni_intel ablk_helper > cryptd lrw gf128mul glue_helper aes_x86_64 ahci libahci ehci_pci > libata ehci_hcd i2c_i801 i2c_core lpc_ich mfd_core usbcore scsi_mod > usb_common wmi evdev ipmi_si ipmi_msghandler tpm_tis tpm acpi_pad > proce > ssor thermal_sys button > [5184217.684098] CPU: 9 PID: 2801 Comm: rrdns Tainted: G W O > 3.14.28-cloudflare #1 > [5184217.684099] Hardware name: Quanta Computer Inc QuantaPlex > T41S-2U/S2S-MB, BIOS S2S_3A14 09/18/2014 > [5184217.684100] 0000000000000000 ffffffff81466263 0000000000000000 > ffffffff8103bb34 > [5184217.684101] ffffffff813e07f2 ffff8818abebcc00 000000000000004a > 0000000000000002 > [5184217.684102] 0000000000000060 ffffffff813e07f2 0000003000004120 > ffff8818abebcc00 > [5184217.684104] Call Trace: > [5184217.684105] <IRQ> [<ffffffff81466263>] ? dump_stack+0x41/0x51 > [5184217.684111] [<ffffffff8103bb34>] ? warn_slowpath_common+0x74/0x89 > [5184217.684115] [<ffffffff813e07f2>] ? tcp_fragment+0x34/0x230 > [5184217.684118] [<ffffffff813e07f2>] ? tcp_fragment+0x34/0x230 > [5184217.684119] [<ffffffff813d98b7>] ? tcp_mark_head_lost+0x1bd/0x1d5 > [5184217.684123] [<ffffffff813ddb71>] ? tcp_fastretrans_alert+0x69f/0x71d > [5184217.684125] [<ffffffff813de567>] ? tcp_ack+0x90f/0xb16 > [5184217.684126] [<ffffffff813df618>] ? tcp_rcv_state_process+0x5bd/0x9b8 > [5184217.684128] [<ffffffff8106d9c0>] ? __wake_up_sync_key+0x3a/0x4d > [5184217.684130] [<ffffffff813920ed>] ? sk_wake_async+0x17/0x34 > [5184217.684133] [<ffffffff81440d13>] ? ipv6_skip_exthdr+0x28/0xc7 > [5184217.684139] [<ffffffff81418db6>] ? NF_HOOK_THRESH.constprop.11+0x4a/0x4a > [5184217.684143] [<ffffffff81435abe>] ? tcp_v6_do_rcv+0x3ac/0x4f1 > [5184217.684146] [<ffffffff81435eec>] ? tcp_v6_rcv+0x2e9/0x554 > [5184217.684148] [<ffffffff813c70d3>] ? nf_hook_slow+0x66/0xf1 > [5184217.684150] [<ffffffff81418db6>] ? NF_HOOK_THRESH.constprop.11+0x4a/0x4a > [5184217.684167] [<ffffffff81418f70>] ? ip6_input_finish+0x1ba/0x2a7 > [5184217.684169] [<ffffffff813a1c12>] ? __netif_receive_skb_core+0x422/0x494 > [5184217.684172] [<ffffffff813a283a>] ? netif_receive_skb_internal+0x37/0x6d > [5184217.684188] [<ffffffffa09a2e40>] ? efx_ssr_try_merge+0x336/0x34e [sfc] > [5184217.684215] [<ffffffffa09a4075>] ? __efx_ssr_end_of_burst+0x3e/0xd2 > [sfc] > [5184217.684225] [<ffffffffa098e3bd>] ? efx_process_channel+0x5d/0x71 [sfc] > [5184217.684243] [<ffffffffa098f557>] ? efx_poll+0x6d/0x16b [sfc] > [5184217.684248] [<ffffffff813a2e27>] ? net_rx_action+0xc6/0x191 > [5184217.684250] [<ffffffff8103f7ee>] ? __do_softirq+0x100/0x27c > [5184217.684254] [<ffffffff8103fae6>] ? irq_exit+0x51/0xbc > [5184217.684255] [<ffffffff81003e35>] ? do_IRQ+0x9d/0xb4 > [5184217.684258] [<ffffffff8146992a>] ? common_interrupt+0x6a/0x6a > [5184217.684261] <EOI> <4>[5184217.684263] ---[ end trace 4f42d23abf1c890e > ]--- > [5184217.684460] ------------[ cut here ]------------ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
