[root@proxmox0 ~]# cat /proc/interrupts CPU0 0: 1631278696 IO-APIC-edge timer 1: 3 IO-APIC-edge i8042 6: 6 IO-APIC-edge floppy 8: 0 IO-APIC-edge rtc 9: 0 IO-APIC-level acpi 12: 5 IO-APIC-edge i8042 14: 18448578 IO-APIC-edge ide0 15: 24280938 IO-APIC-edge ide1 114: 17803149 IO-APIC-level sata_via 122: 3689957 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4, uhci_hcd:usb5 130: 3992054 IO-APIC-level sata_sil 131: 633 PCI-MSI eth1 178: 189857300 PCI-MSI-X eth5-rx-0 186: 62361679 PCI-MSI-X eth5-tx-0 194: 400038 PCI-MSI-X eth5 202: 0 IO-APIC-level sata_sil24 NMI: 99641 LOC: 1631097261 RES: 0 ERR: 0 MIS: 0 From /var/log/messages: Oct 14 10:06:32 proxmox0 kernel: irq 194: nobody cared (try booting with the "irqpoll" option) Oct 14 10:06:32 proxmox0 kernel: Oct 14 10:06:32 proxmox0 kernel: Call Trace: Oct 14 10:06:32 proxmox0 kernel: [] __report_bad_irq+0x30/0x7d Oct 14 10:06:32 proxmox0 kernel: [] note_interrupt+0x1f1/0x232 Oct 14 10:06:32 proxmox0 kernel: [] __do_IRQ+0x114/0x15b Oct 14 10:06:32 proxmox0 kernel: [] do_IRQ+0x141/0x14f Oct 14 10:06:32 proxmox0 kernel: [] default_idle+0x0/0x50 Oct 14 10:06:32 proxmox0 kernel: [] ret_from_intr+0x0/0xa Oct 14 10:06:32 proxmox0 kernel: [] default_idle+0x29/0x50 Oct 14 10:06:32 proxmox0 kernel: [] cpu_idle+0x79/0x98 Oct 14 10:06:32 proxmox0 kernel: [] start_kernel+0x240/0x245 Oct 14 10:06:32 proxmox0 kernel: [] _sinittext+0x22f/0x236 Oct 14 10:06:33 proxmox0 kernel: Oct 14 10:06:33 proxmox0 kernel: handlers: Oct 14 10:06:33 proxmox0 kernel: [] (e1000_msix_other+0x0/0x1c0 [e1000e]) Oct 14 10:06:33 proxmox0 kernel: Disabling IRQ #194 Oct 14 10:06:40 proxmox0 iscsid: connect to 10.1.1.184:3260 failed (No route to host) Oct 14 10:07:16 proxmox0 last message repeated 6 times Oct 14 10:07:58 proxmox0 last message repeated 7 times Oct 14 10:08:03 proxmox0 kernel: session3: session recovery timed out after 120 secs Oct 14 10:08:04 proxmox0 iscsid: connect to 10.1.1.184:3260 failed (No route to host) Oct 14 10:08:40 proxmox0 last message repeated 6 times Oct 14 10:08:52 proxmox0 last message repeated 2 times Oct 14 10:08:52 proxmox0 kernel: NETDEV WATCHDOG: eth5: transmit timed out Oct 14 10:08:52 proxmox0 kernel: e1000e 0000:06:00.0: eth5: Reset adapter Oct 14 10:08:53 proxmox0 kernel: vmbr1: port 2(eth5.100) entering disabled state Oct 14 10:08:53 proxmox0 kernel: vmbr2: port 2(eth5.101) entering disabled state Oct 14 10:08:53 proxmox0 kernel: vmbr3: port 2(eth5.102) entering disabled state Oct 14 10:08:53 proxmox0 kernel: vmbr0: port 3(eth5.200) entering disabled state Oct 14 10:08:53 proxmox0 kernel: storbr0: port 2(eth5.300) entering disabled state Oct 14 10:08:58 proxmox0 iscsid: connect to 10.1.1.184:3260 failed (No route to host) Oct 14 10:09:34 proxmox0 last message repeated 6 times Oct 14 10:10:40 proxmox0 last message repeated 11 times Oct 14 10:10:52 proxmox0 last message repeated 2 times [root@proxmox0 ~]# ethtool -i eth5 driver: e1000e version: 2.1.4-NAPI firmware-version: 1.8-0 bus-info: 0000:06:00.0 [root@proxmox0 ~]# ethtool -k eth5 Offload parameters for eth5: Cannot get device udp large send offload settings: Operation not supported rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: off udp fragmentation offload: off generic segmentation offload: on generic-receive-offload: on [root@proxmox0 ~]# ethtool -g eth5 Ring parameters for eth5: Pre-set maximums: RX: 4096 RX Mini: 0 RX Jumbo: 0 TX: 4096 Current hardware settings: RX: 256 RX Mini: 0 RX Jumbo: 0 TX: 256 [root@proxmox0 ~]# ethtool -S eth5 NIC statistics: rx_packets: 336683371 tx_packets: 279097651 rx_bytes: 392890903148 tx_bytes: 236537353411 rx_broadcast: 455112 tx_broadcast: 536641 rx_multicast: 745688 tx_multicast: 441520 rx_errors: 0 tx_errors: 0 tx_dropped: 0 multicast: 745688 collisions: 0 rx_length_errors: 0 rx_over_errors: 0 rx_crc_errors: 0 rx_frame_errors: 0 rx_no_buffer_count: 0 rx_missed_errors: 8028 tx_aborted_errors: 0 tx_carrier_errors: 0 tx_fifo_errors: 0 tx_heartbeat_errors: 0 tx_window_errors: 0 tx_abort_late_coll: 0 tx_deferred_ok: 0 tx_single_coll_ok: 0 tx_multi_coll_ok: 0 tx_timeout_count: 6 tx_restart_queue: 17 rx_long_length_errors: 0 rx_short_length_errors: 0 rx_align_errors: 0 tx_tcp_seg_good: 10618253 tx_tcp_seg_failed: 0 rx_flow_control_xon: 97226 rx_flow_control_xoff: 97226 tx_flow_control_xon: 54938498 tx_flow_control_xoff: 54672088 rx_long_byte_count: 392890903148 rx_csum_offload_good: 334127549 rx_csum_offload_errors: 1093 rx_header_split: 297591507 alloc_rx_buff_failed: 0 tx_smbus: 0 rx_smbus: 0 dropped_smbus: 0 rx_dma_failed: 0 tx_dma_failed: 0 [root@proxmox0 ~]# uname -a Linux proxmox0 2.6.18-308.8.2.el5.028stab101.1 #1 SMP Sun Jun 24 20:25:35 MSD 2012 x86_64 x86_64 x86_64 GNU/Linux [root@proxmox0 ~]# lspci |less 00:00.0 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:00.1 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:00.2 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:00.3 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:00.4 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:00.5 PIC: VIA Technologies, Inc. K8T890 I/O APIC Interrupt Controller 00:00.7 Host bridge: VIA Technologies, Inc. K8T890 Host Bridge 00:01.0 PCI bridge: VIA Technologies, Inc. [K8T890 North / VT8237 South] PCI Bridge 00:02.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.0 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.1 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.2 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:03.3 PCI bridge: VIA Technologies, Inc. K8T890 PCI to PCI Bridge Controller 00:08.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev 01) 00:09.0 SATA controller: Silicon Image, Inc. SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02) 00:0f.0 IDE interface: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80) 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 00:10.0 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) 00:10.1 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) 00:10.2 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) 00:10.3 USB controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81) 00:10.4 USB controller: VIA Technologies, Inc. USB 2.0 (rev 86) 00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South] 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 02:00.0 PCI bridge: PLX Technology, Inc. PEX 8518 16-lane, 5-port PCI Express Switch (rev ac) 03:01.0 PCI bridge: PLX Technology, Inc. PEX 8518 16-lane, 5-port PCI Express Switch (rev ac) 03:02.0 PCI bridge: PLX Technology, Inc. PEX 8518 16-lane, 5-port PCI Express Switch (rev ac) 04:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06) 04:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06) 05:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06) 05:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06) 06:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 07:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller (rev 01)