I was doing some local LAN network load testing with Iperf on my new hardware, and Iperf suddenly got a Network Error.
I looked in the UTM's kernel log and found a corresponding error there for eth1.
eth1 is an Intel PCIe card, with Intel 82572EI chip, in a PCIe x16 slot.
Motherboard is a Gigabyte GA-Z87N-WiFi with Intel Z87 chip.
Iperf was running on separate machines, not on the firewall.
IPS and ATP were running, all other features were disabled.
2013:11:28-19:39:07 fw kernel: [ 2245.063734] e1000e 0000:01:00.0 eth1: Detected Hardware Unit Hang:
2013:11:28-19:39:07 fw kernel: [ 2245.063734] TDH
2013:11:28-19:39:07 fw kernel: [ 2245.063734] TDT
2013:11:28-19:39:07 fw kernel: [ 2245.063734] next_to_use
2013:11:28-19:39:07 fw kernel: [ 2245.063734] next_to_clean
2013:11:28-19:39:07 fw kernel: [ 2245.063734] buffer_info[next_to_clean]:
2013:11:28-19:39:07 fw kernel: [ 2245.063734] time_stamp
2013:11:28-19:39:07 fw kernel: [ 2245.063734] next_to_watch
2013:11:28-19:39:07 fw kernel: [ 2245.063734] jiffies
2013:11:28-19:39:07 fw kernel: [ 2245.063734] next_to_watch.status
2013:11:28-19:39:07 fw kernel: [ 2245.063734] MAC Status
2013:11:28-19:39:07 fw kernel: [ 2245.063734] PHY Status
2013:11:28-19:39:07 fw kernel: [ 2245.063734] PHY 1000BASE-T Status
2013:11:28-19:39:07 fw kernel: [ 2245.063734] PHY Extended Status
2013:11:28-19:39:07 fw kernel: [ 2245.063734] PCI Status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] e1000e 0000:01:00.0 eth1: Detected Hardware Unit Hang:
2013:11:28-19:39:11 fw kernel: [ 2249.059583] TDH
2013:11:28-19:39:11 fw kernel: [ 2249.059583] TDT
2013:11:28-19:39:11 fw kernel: [ 2249.059583] next_to_use
2013:11:28-19:39:11 fw kernel: [ 2249.059583] next_to_clean
2013:11:28-19:39:11 fw kernel: [ 2249.059583] buffer_info[next_to_clean]:
2013:11:28-19:39:11 fw kernel: [ 2249.059583] time_stamp
2013:11:28-19:39:11 fw kernel: [ 2249.059583] next_to_watch
2013:11:28-19:39:11 fw kernel: [ 2249.059583] jiffies
2013:11:28-19:39:11 fw kernel: [ 2249.059583] next_to_watch.status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] MAC Status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] PHY Status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] PHY 1000BASE-T Status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] PHY Extended Status
2013:11:28-19:39:11 fw kernel: [ 2249.059583] PCI Status
2013:11:28-19:39:13 fw kernel: [ 2251.068899] ------------[ cut here ]------------
2013:11:28-19:39:13 fw kernel: [ 2251.068904] WARNING: at net/sched/sch_generic.c:254 dev_watchdog+0xe7/0x182()
2013:11:28-19:39:13 fw kernel: [ 2251.068905] Hardware name: Z87N-WIFI
2013:11:28-19:39:13 fw kernel: [ 2251.068906] NETDEV WATCHDOG: eth1 (e1000e): transmit queue 0 timed out
2013:11:28-19:39:13 fw kernel: [ 2251.068906] Modules linked in: sr_mod cdrom ipt_MASQUERADE xt_policy xt_hashlimit xt_connlabel xt_NFQUEUE xt_connmark xt_mark xt_tcpudp xt_set xt_multiport xt_addrtype ip_set_hash_ip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp ip_set_hash_net nfnetlink_queue ebtable_filter ebtables redv2_netlink af_packet ip6table_ips ip6table_mangle ip6table_nat nf_nat_ipv6 iptable_ips iptable_mangle iptable_nat nf_nat_ipv4 nf_nat xt_NFLOG xt_condition(O) xt_logmark xt_confirmed xt_owner ip6t_REJECT ipt_REJECT xt_state ip_set red2 ip_scheduler red nfnetlink_log nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack iptable_filter iptable_raw xt_CT nf_conntrack_netlink nfnetlink nf_conntrack ip6_tables ip_tables x_tables ipv6 loop acpi_cpufreq mperf crc32c_intel aesni_intel ablk_helper cryptd lrw aes_x86_64 aes_generic xts gf128mul coretemp i2c_i801 pcspkr e1000e(O) microcode evdev rtc_cmos ehci_pci ehci_hcd button sg sd_mod xhci_hcd thermal fan processor thermal_sys hwmon edd ahci libahci libata scsi_mod hid_generic usbhid
2013:11:28-19:39:13 fw kernel: [ 2251.068938] Pid: 0, comm: swapper/0 Tainted: G O 3.8.13.6-18.g9aea9e6-smp64 #1
2013:11:28-19:39:13 fw kernel: [ 2251.068939] Call Trace:
2013:11:28-19:39:13 fw kernel: [ 2251.068939] [] ? dev_watchdog+0xe7/0x182
2013:11:28-19:39:13 fw kernel: [ 2251.068943] [] ? warn_slowpath_common+0x78/0x8d
2013:11:28-19:39:13 fw kernel: [ 2251.068945] [] ? netif_tx_lock+0x7e/0x7e
2013:11:28-19:39:13 fw kernel: [ 2251.068946] [] ? warn_slowpath_fmt+0x45/0x4a
2013:11:28-19:39:13 fw kernel: [ 2251.068948] [] ? netif_tx_lock+0x43/0x7e
2013:11:28-19:39:13 fw kernel: [ 2251.068950] [] ? dev_watchdog+0xe7/0x182
2013:11:28-19:39:13 fw kernel: [ 2251.068952] [] ? call_timer_fn+0x1b/0x6e
2013:11:28-19:39:13 fw kernel: [ 2251.068953] [] ? run_timer_softirq+0x16c/0x1b3
2013:11:28-19:39:13 fw kernel: [ 2251.068955] [] ? __do_softirq+0x9d/0x15f
2013:11:28-19:39:13 fw kernel: [ 2251.068959] [] ? disable_cpuidle+0xb/0xb
2013:11:28-19:39:13 fw kernel: [ 2251.068960] [] ? call_softirq+0x1c/0x30
2013:11:28-19:39:13 fw kernel: [ 2251.068962] [] ? do_softirq+0x3f/0x79
2013:11:28-19:39:13 fw kernel: [ 2251.068965] [] ? irq_exit+0x43/0xb1
2013:11:28-19:39:13 fw kernel: [ 2251.068966] [] ? disable_cpuidle+0xb/0xb
2013:11:28-19:39:13 fw kernel: [ 2251.068967] [] ? reschedule_interrupt+0x6d/0x80
2013:11:28-19:39:13 fw kernel: [ 2251.068968] [] ? __hrtimer_start_range_ns+0x271/0x284
2013:11:28-19:39:13 fw kernel: [ 2251.068972] [] ? cpuidle_wrap_enter+0x3c/0x71
2013:11:28-19:39:13 fw kernel: [ 2251.068973] [] ? cpuidle_wrap_enter+0x32/0x71
2013:11:28-19:39:13 fw kernel: [ 2251.068975] [] ? cpuidle_enter_state+0xa/0x33
2013:11:28-19:39:13 fw kernel: [ 2251.068976] [] ? cpuidle_idle_call+0x9e/0xcc
2013:11:28-19:39:13 fw kernel: [ 2251.068977] [] ? cpu_idle+0x61/0xa9
2013:11:28-19:39:13 fw kernel: [ 2251.068979] [] ? early_idt_handlers+0x120/0x120
2013:11:28-19:39:13 fw kernel: [ 2251.068980] [] ? start_kernel+0x372/0x37e
2013:11:28-19:39:13 fw kernel: [ 2251.068982] [] ? repair_env_string+0x5d/0x5d
2013:11:28-19:39:13 fw kernel: [ 2251.068983] [] ? x86_64_start_kernel+0x102/0x10f
2013:11:28-19:39:13 fw kernel: [ 2251.068984] ---[ end trace 918e7f6542337fab ]---
2013:11:28-19:39:13 fw kernel: [ 2251.068987] e1000e 0000:01:00.0 eth1: Reset adapter unexpectedly
2013:11:28-19:39:16 fw kernel: [ 2254.158485] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
I also checked the logs on the Fedora Iperf client; there were no hardware or driver errors.
Please let me know if any other information is needed.
Barry
