Bug 121561
| Summary: | soft lockup - CPU#0 stuck for 22s! [kworker/0:0:17329] | ||
|---|---|---|---|
| Product: | Other | Reporter: | Ciprian Parfon (ciprian.parfon) |
| Component: | Modules | Assignee: | other_modules |
| Status: | NEW --- | ||
| Severity: | high | ||
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 3.2.0-4 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
I've experienced recently a strange behavior on 2 of our Linux servers, which act as firewall machines. I have iptables and LVS(IPVS) running on them. Earlier today while we got some traffic increase ( about 600Mbps ) we started getting the errors you'll see below and a significantly cpu load increase at the same time. Basically the machine became unresponsive. What I noticed is when stopping ipvs everything looks fine. Bellow is the error and the details: Jul 6 15:28:45 fw1 kernel: [46537615.615982] BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:0:17329] Jul 6 15:28:45 fw1 kernel: [46537615.623647] Modules linked in: ip_vs_rr xt_set ip_set_hash_ip ip_set xt_policy authenc xfrm6_mode_tunnel xfrm4_mode_tunnel nfnetlink_log nfnetlink ipt_REJECT xt_connbytes xt_multiport ip_vs libcrc32c xt_t cpudp xt_NOTRACK xt_state xfrm_user xfrm4_tunnel tunnel4 iptable_raw ipcomp iptable_nat xfrm_ipcomp esp4 nf_nat nf_conntrack_ipv4 ah4 nf_defrag_ipv4 iptable_filter ip_tables x_tables deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common camellia serpent blowfish_generic blowfish_x86_64 blowfish_common cast5 des_generic cbc xcbc rmd160 sha512_generic sha256_generic sha1_ssse3 sha1_generic hmac crypto_null af_key xfs ipmi_si ipmi_devintf ipmi_msghandler loop 8021q garp stp nf_conntrack coretemp crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 aes_generic cryptd joydev evdev snd_pcsp snd_pcm snd_page_alloc snd_timer snd iTCO_wdt iTCO_vendor_support shpchp dcdbas wmi acpi_power_meter soundcore sb_edac edac_core processor button thermal_ Jul 6 15:28:45 fw1 kernel: sys ext4 crc16 jbd2 mbcache usbhid hid dm_mod microcode sg sd_mod crc_t10dif ehci_hcd usbcore usb_common igb megaraid_sas i2c_algo_bit i2c_core scsi_mod dca [last unloaded: scsi_wait_scan] Jul 6 15:28:45 fw1 kernel: [46537615.623707] CPU 0 Jul 6 15:28:45 fw1 kernel: [46537615.623708] Modules linked in: ip_vs_rr xt_set ip_set_hash_ip ip_set xt_policy authenc xfrm6_mode_tunnel xfrm4_mode_tunnel nfnetlink_log nfnetlink ipt_REJECT xt_connbytes xt_multiport ip_vs libcrc32c xt_tcpudp xt_NOTRACK xt_state xfrm_user xfrm4_tunnel tunnel4 iptable_raw ipcomp iptable_nat xfrm_ipcomp esp4 nf_nat nf_conntrack_ipv4 ah4 nf_defrag_ipv4 iptable_filter ip_tables x_tables deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common camellia serpent blowfish_generic blowfish_x86_64 blowfish_common cast5 des_generic cbc xcbc rmd160 sha512_generic sha256_generic sha1_ssse3 sha1_generic hmac crypto_null af_key xfs ipmi_si ipmi_devintf ipmi_msghandler loop 8021q garp stp nf_conntrack coretemp crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 aes_generic cryptd joydev evdev snd_pcsp snd_pcm snd_page_alloc snd_timer snd iTCO_wdt iTCO_vendor_support shpchp dcdbas wmi acpi_power_meter soundcore sb_edac edac_core processor button thermal_ Jul 6 15:28:45 fw1 kernel: sys ext4 crc16 jbd2 mbcache usbhid hid dm_mod microcode sg sd_mod crc_t10dif ehci_hcd usbcore usb_common igb megaraid_sas i2c_algo_bit i2c_core scsi_mod dca [last unloaded: scsi_wait_scan] Jul 6 15:28:45 fw1 kernel: [46537615.623741] Jul 6 15:28:45 fw1 kernel: [46537615.623743] Pid: 17329, comm: kworker/0:0 Tainted: G W 3.2.0-4-amd64 #1 Debian 3.2.57-3+deb7u2 Dell Inc. PowerEdge R620/0PXXHP Jul 6 15:28:45 fw1 kernel: [46537615.623745] RIP: 0010:[<ffffffffa0356065>] [<ffffffffa0356065>] iptable_raw_hook+0x2/0x51 [iptable_raw] Jul 6 15:28:45 fw1 kernel: [46537615.623750] RSP: 0018:ffff88083fc03c48 EFLAGS: 00000293 Jul 6 15:28:45 fw1 kernel: [46537615.623751] RAX: 0000000000000000 RBX: ffff88083c28c900 RCX: 0000000000000000 Jul 6 15:28:45 fw1 kernel: [46537615.623753] RDX: ffff88081ce2c000 RSI: ffff8802a730d9c0 RDI: 0000000000000000 Jul 6 15:28:45 fw1 kernel: [46537615.623754] RBP: ffff88081ad87740 R08: ffffffff812b7938 R09: ffff88083fc03cc8 Jul 6 15:28:45 fw1 kernel: [46537615.623755] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88083fc03bb8 Jul 6 15:28:45 fw1 kernel: [46537615.623756] R13: ffffffff813556de R14: ffff88081ad87740 R15: ffff8802a730d9c0 Jul 6 15:28:45 fw1 kernel: [46537615.623758] FS: 0000000000000000(0000) GS:ffff88083fc00000(0000) knlGS:0000000000000000 Jul 6 15:28:45 fw1 kernel: [46537615.623759] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jul 6 15:28:45 fw1 kernel: [46537615.623761] CR2: 00007fe250b05070 CR3: 000000101e54d000 CR4: 00000000000406f0 Jul 6 15:28:45 fw1 kernel: [46537615.623762] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 6 15:28:45 fw1 kernel: [46537615.623764] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 6 15:28:45 fw1 kernel: [46537615.623765] Process kworker/0:0 (pid: 17329, threadinfo ffff88028d930000, task ffff880804ca8180) Jul 6 15:28:45 fw1 kernel: [46537615.623766] Stack: Jul 6 15:28:45 fw1 kernel: [46537615.626296] ffffffff812b1b51 ffff880243128980 ffff88083fc03cc8 ffff88083fc03c68 Jul 6 15:28:45 fw1 kernel: [46537615.626299] ffff8802a730d9c0 ffffffff812b7938 ffff8802a730d9c0 0000000000000000 Jul 6 15:28:45 fw1 kernel: [46537615.626301] ffff88081ce2c000 ffffffff81692810 ffffffff812b1bef ffffffff812b7938 Jul 6 15:28:45 fw1 kernel: [46537615.626304] Call Trace: Jul 6 15:28:45 fw1 kernel: [46537615.629315] <IRQ> Jul 6 15:28:45 fw1 kernel: [46537615.631959] [<ffffffff812b1b51>] ? nf_iterate+0x41/0x77 Jul 6 15:28:45 fw1 kernel: [46537615.631963] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.631964] [<ffffffff812b1bef>] ? nf_hook_slow+0x68/0x101 Jul 6 15:28:45 fw1 kernel: [46537615.631966] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.631968] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.631971] [<ffffffff812b7c45>] ? NF_HOOK.constprop.9+0x3c/0x56 Jul 6 15:28:45 fw1 kernel: [46537615.631975] [<ffffffff8128e926>] ? __netif_receive_skb+0x3fb/0x42d Jul 6 15:28:45 fw1 kernel: [46537615.631978] [<ffffffff812902b0>] ? netif_receive_skb+0x63/0x69 Jul 6 15:28:45 fw1 kernel: [46537615.631980] [<ffffffff812907ce>] ? napi_gro_flush+0x1c/0x38 Jul 6 15:28:45 fw1 kernel: [46537615.631983] [<ffffffff812907fd>] ? napi_complete+0x13/0x37 Jul 6 15:28:45 fw1 kernel: [46537615.631990] [<ffffffffa0086ead>] ? igb_poll+0x93d/0xb80 [igb] Jul 6 15:28:45 fw1 kernel: [46537615.631992] [<ffffffff812908c2>] ? net_rx_action+0xa1/0x1aa Jul 6 15:28:45 fw1 kernel: [46537615.631995] [<ffffffff8104c36e>] ? __do_softirq+0xb9/0x177 Jul 6 15:28:45 fw1 kernel: [46537615.631999] [<ffffffff81356e6c>] ? call_softirq+0x1c/0x30 Jul 6 15:28:45 fw1 kernel: [46537615.632002] [<ffffffff8100fa21>] ? do_softirq+0x3c/0x7b Jul 6 15:28:45 fw1 kernel: [46537615.632017] [<ffffffff8104c5d6>] ? irq_exit+0x3c/0x99 Jul 6 15:28:45 fw1 kernel: [46537615.632019] [<ffffffff8100f5fa>] ? do_IRQ+0x82/0x98 Jul 6 15:28:45 fw1 kernel: [46537615.632022] [<ffffffff8134feee>] ? common_interrupt+0x6e/0x6e Jul 6 15:28:45 fw1 kernel: [46537615.632023] <EOI> Jul 6 15:28:45 fw1 kernel: [46537615.634660] [<ffffffff810eadca>] ? arch_local_irq_restore+0x2/0x8 Jul 6 15:28:45 fw1 kernel: [46537615.634663] [<ffffffff810eb6f8>] ? kmem_cache_free+0x2d/0x69 Jul 6 15:28:45 fw1 kernel: [46537615.634666] [<ffffffff8129e298>] ? flow_cache_gc_task+0xa0/0xb1 Jul 6 15:28:45 fw1 kernel: [46537615.634669] [<ffffffff8105b5cf>] ? process_one_work+0x161/0x269 Jul 6 15:28:45 fw1 kernel: [46537615.634671] [<ffffffff8105c598>] ? worker_thread+0xc2/0x145 Jul 6 15:28:45 fw1 kernel: [46537615.634673] [<ffffffff8105c4d6>] ? manage_workers.isra.25+0x15b/0x15b Jul 6 15:28:45 fw1 kernel: [46537615.634675] [<ffffffff8105f6d9>] ? kthread+0x76/0x7e Jul 6 15:28:45 fw1 kernel: [46537615.634677] [<ffffffff81356d74>] ? kernel_thread_helper+0x4/0x10 Jul 6 15:28:45 fw1 kernel: [46537615.634679] [<ffffffff8105f663>] ? kthread_worker_fn+0x139/0x139 Jul 6 15:28:45 fw1 kernel: [46537615.634681] [<ffffffff81356d70>] ? gs_change+0x13/0x13 Jul 6 15:28:45 fw1 kernel: [46537615.634682] Code: 14 f5 ff 48 89 ef 48 89 83 f0 01 00 00 e8 af 5d d9 e0 48 8b 93 f0 01 00 00 31 c0 48 81 fa 01 f0 ff ff 0f 43 c2 5a 5b 5d c3 89 f8 <48> 89 f7 83 f8 03 75 22 83 7e 68 13 76 3b 8b b6 c4 00 00 00 4c Jul 6 15:28:45 fw1 kernel: [46537615.656558] Call Trace: Jul 6 15:28:45 fw1 kernel: [46537615.656559] <IRQ> [<ffffffff812b1b51>] ? nf_iterate+0x41/0x77 Jul 6 15:28:45 fw1 kernel: [46537615.656562] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.656564] [<ffffffff812b1bef>] ? nf_hook_slow+0x68/0x101 Jul 6 15:28:45 fw1 kernel: [46537615.656565] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.656567] [<ffffffff812b7938>] ? inet_del_protocol+0x27/0x27 Jul 6 15:28:45 fw1 kernel: [46537615.656569] [<ffffffff812b7c45>] ? NF_HOOK.constprop.9+0x3c/0x56 Jul 6 15:28:45 fw1 kernel: [46537615.656571] [<ffffffff8128e926>] ? __netif_receive_skb+0x3fb/0x42d Jul 6 15:28:45 fw1 kernel: [46537615.656573] [<ffffffff812902b0>] ? netif_receive_skb+0x63/0x69 Jul 6 15:28:45 fw1 kernel: [46537615.656575] [<ffffffff812907ce>] ? napi_gro_flush+0x1c/0x38 Jul 6 15:28:45 fw1 kernel: [46537615.656577] [<ffffffff812907fd>] ? napi_complete+0x13/0x37 Jul 6 15:28:45 fw1 kernel: [46537615.656582] [<ffffffffa0086ead>] ? igb_poll+0x93d/0xb80 [igb] Jul 6 15:28:45 fw1 kernel: [46537615.656584] [<ffffffff812908c2>] ? net_rx_action+0xa1/0x1aa Jul 6 15:28:45 fw1 kernel: [46537615.656586] [<ffffffff8104c36e>] ? __do_softirq+0xb9/0x177 Jul 6 15:28:45 fw1 kernel: [46537615.656588] [<ffffffff81356e6c>] ? call_softirq+0x1c/0x30 Jul 6 15:28:45 fw1 kernel: [46537615.656590] [<ffffffff8100fa21>] ? do_softirq+0x3c/0x7b Jul 6 15:28:45 fw1 kernel: [46537615.656592] [<ffffffff8104c5d6>] ? irq_exit+0x3c/0x99 Jul 6 15:28:45 fw1 kernel: [46537615.656594] [<ffffffff8100f5fa>] ? do_IRQ+0x82/0x98 Jul 6 15:28:45 fw1 kernel: [46537615.656595] [<ffffffff8134feee>] ? common_interrupt+0x6e/0x6e Jul 6 15:28:45 fw1 kernel: [46537615.656596] <EOI> [<ffffffff810eadca>] ? arch_local_irq_restore+0x2/0x8 Jul 6 15:28:45 fw1 kernel: [46537615.656600] [<ffffffff810eb6f8>] ? kmem_cache_free+0x2d/0x69 Jul 6 15:28:45 fw1 kernel: [46537615.656602] [<ffffffff8129e298>] ? flow_cache_gc_task+0xa0/0xb1 Jul 6 15:28:45 fw1 kernel: [46537615.656604] [<ffffffff8105b5cf>] ? process_one_work+0x161/0x269 Jul 6 15:28:45 fw1 kernel: [46537615.656606] [<ffffffff8105c598>] ? worker_thread+0xc2/0x145 Jul 6 15:28:45 fw1 kernel: [46537615.656608] [<ffffffff8105c4d6>] ? manage_workers.isra.25+0x15b/0x15b Jul 6 15:28:45 fw1 kernel: [46537615.656610] [<ffffffff8105f6d9>] ? kthread+0x76/0x7e Jul 6 15:28:45 fw1 kernel: [46537615.656612] [<ffffffff81356d74>] ? kernel_thread_helper+0x4/0x10 Jul 6 15:28:45 fw1 kernel: [46537615.656614] [<ffffffff8105f663>] ? kthread_worker_fn+0x139/0x139 Jul 6 15:28:45 fw1 kernel: [46537615.656616] [<ffffffff81356d70>] ? gs_change+0x13/0x13 root@fw1:~# cat /etc/debian_version 7.5 root@fw1:~# uname -r 3.2.0-4-amd64 root@fw1:~# dmidecode -s processor-version Intel(R) Xeon(R) CPU E5-2643 0 @ 3.30GHz Intel(R) Xeon(R) CPU E5-2643 0 @ 3.30GHz root@fw1:~# dmidecode -s system-product-name PowerEdge R620 root@fw1:~# dmidecode -s bios-vendor Dell Inc. root@fw1:~# dmidecode -s bios-version 1.6.0 root@fw1:~# dmidecode -s bios-release-date 03/07/2013 root@fw1:~# dmidecode -s baseboard-manufacturer Dell Inc. root@fw1:~# dmidecode -s baseboard-product-name 0PXXHP root@fw1:~# dmidecode -s baseboard-version A03 root@fw1:~# ipvsadm -v ipvsadm v1.26 2008/5/15 (compiled with popt and IPVS v1.2.1) root@fw1:~# iptables -V iptables v1.4.14 root@fw1:~# lsmod Module Size Used by ipt_REJECT 12502 2 xt_connbytes 12519 49 xt_policy 12506 18 authenc 13417 11 xfrm6_mode_tunnel 12581 11 xfrm4_mode_tunnel 12496 22 sha1_ssse3 16983 11 sha1_generic 12582 1 sha1_ssse3 hmac 12835 22 xt_multiport 12548 31 ip_vs 104053 0 libcrc32c 12426 1 ip_vs xt_tcpudp 12570 178 xt_NOTRACK 12427 13 xt_state 12503 7 xfrm_user 27310 2 xfrm4_tunnel 12617 0 tunnel4 12629 1 xfrm4_tunnel ipcomp 12507 0 iptable_raw 12524 1 xfrm_ipcomp 12600 1 ipcomp iptable_nat 12928 1 esp4 12792 11 nf_nat 18242 1 iptable_nat nf_conntrack_ipv4 14078 59 nf_nat,iptable_nat ah4 12755 0 af_key 31759 0 nf_defrag_ipv4 12483 1 nf_conntrack_ipv4 iptable_filter 12536 1 ip_tables 22042 3 iptable_filter,iptable_nat,iptable_raw x_tables 19118 11 ip_tables,iptable_filter,iptable_nat,iptable_raw,xt_state,xt_NOTRACK,xt_tcpudp,xt_multiport,xt_policy,xt_connbytes,ipt_REJECT xfs 590943 1 ipmi_si 36954 0 ipmi_devintf 17092 0 ipmi_msghandler 35965 2 ipmi_devintf,ipmi_si loop 22641 0 8021q 23480 0 garp 13193 1 8021q stp 12437 1 garp nf_conntrack 52720 7 nf_conntrack_ipv4,nf_nat,iptable_nat,xt_state,xt_NOTRACK,ip_vs,xt_connbytes coretemp 12898 0 crc32c_intel 12747 1 ghash_clmulni_intel 13130 0 sb_edac 17030 0 edac_core 35258 3 sb_edac snd_pcsp 13742 0 dcdbas 13307 0 snd_pcm 68083 1 snd_pcsp snd_page_alloc 13003 1 snd_pcm snd_timer 22917 1 snd_pcm snd 52889 3 snd_timer,snd_pcm,snd_pcsp aesni_intel 50667 22 evdev 17562 0 joydev 17266 0 aes_x86_64 16843 1 aesni_intel aes_generic 33026 2 aes_x86_64,aesni_intel cryptd 14517 13 aesni_intel,ghash_clmulni_intel shpchp 31293 0 iTCO_wdt 17081 0 iTCO_vendor_support 12704 1 iTCO_wdt acpi_power_meter 17489 0 soundcore 13065 1 snd wmi 13243 0 processor 28149 0 button 12937 0 thermal_sys 18040 1 processor ext4 350763 1 crc16 12343 1 ext4 jbd2 62115 1 ext4 mbcache 13114 1 ext4 usbhid 36418 0 hid 81372 1 usbhid dm_mod 63645 3 microcode 30126 0 sg 25874 0 sd_mod 36136 4 crc_t10dif 12348 1 sd_mod ehci_hcd 40249 0 usbcore 128741 3 ehci_hcd,usbhid usb_common 12354 1 usbcore igb 109311 0 megaraid_sas 68571 3 i2c_algo_bit 12841 1 igb i2c_core 23876 2 i2c_algo_bit,igb scsi_mod 162269 3 megaraid_sas,sd_mod,sg dca 13240 1 igb root@fw1:~# lshw -c network PCI (sysfs) *-network:0 description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 logical name: eth0 version: 01 serial: b8:ca:3a:63:ca:9c size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k duplex=full firmware=1.56, 0x80000acf, 14.5.8 ip=185.14.241.82 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:38 memory:d8b00000-d8bfffff memory:d8ff0000-d8ff3fff memory:d8000000-d807ffff *-network:1 description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0.1 bus info: pci@0000:01:00.1 logical name: eth1 version: 01 serial: b8:ca:3a:63:ca:9d size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k duplex=full firmware=1.56, 0x80000acf, 14.5.8 ip=10.10.0.2 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:37 memory:d8c00000-d8cfffff memory:d8ff4000-d8ff7fff memory:d5000000-d507ffff *-network:2 description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0.2 bus info: pci@0000:01:00.2 logical name: eth2 version: 01 serial: b8:ca:3a:63:ca:9e size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k duplex=full firmware=1.56, 0x80000acf, 14.5.8 ip=10.10.33.4 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:36 memory:d8d00000-d8dfffff memory:d8ff8000-d8ffbfff memory:d5080000-d50fffff *-network:3 description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0.3 bus info: pci@0000:01:00.3 logical name: eth3 version: 01 serial: b8:ca:3a:63:ca:9f size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k duplex=full firmware=1.56, 0x80000acf, 14.5.8 ip=10.10.40.2 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:34 memory:d8e00000-d8efffff memory:d8ffc000-d8ffffff memory:d5100000-d517ffff *-network:0 description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: eth4 version: 01 serial: a0:36:9f:27:05:d6 size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k duplex=full firmware=1.56, 0x80000ad5, 14.5.8 ip=10.10.34.2 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:48 memory:dad00000-dadfffff memory:daff8000-daffbfff memory:da000000-da07ffff *-network:1 DISABLED description: Ethernet interface product: I350 Gigabit Network Connection vendor: Intel Corporation physical id: 0.1 bus info: pci@0000:04:00.1 logical name: eth5 version: 01 serial: a0:36:9f:27:05:d7 capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi msix pciexpress vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.0.5-k firmware=1.56, 0x80000ad5, 14.5.8 latency=0 link=no multicast=yes port=twisted pair resources: irq:52 memory:dae00000-daefffff memory:daffc000-daffffff memory:d5200000-d527ffff