eth1 - это внешняя сетевуха, как я понимаю?
если есть свободные pci-разъемы на матери, попробуйте переставить сетевуху в другой
один слот только на матери pci (http://www.asus.com/Motherboards/Intel_ … P8H61M_LE/)
Установил другую сетевую, проблема не исчезла 
Mar 19 12:08:46 localhost kernel: irq 169: nobody cared (try booting with the "irqpoll" option)
Mar 19 12:08:46 localhost kernel:
Mar 19 12:08:46 localhost kernel: Call Trace:
Mar 19 12:08:46 localhost kernel: <IRQ> [<ffffffff800bea36>] __report_bad_irq+0x30/0x7d
Mar 19 12:08:46 localhost kernel: [<ffffffff800bec74>] note_interrupt+0x1f1/0x232
Mar 19 12:08:46 localhost kernel: [<ffffffff800be174>] __do_IRQ+0x114/0x15b
Mar 19 12:08:46 localhost kernel: [<ffffffff8006d4d1>] do_IRQ+0xe9/0xf7
Mar 19 12:08:46 localhost kernel: [<ffffffff8005d615>] ret_from_intr+0x0/0xa
Mar 19 12:08:46 localhost kernel: <EOI> [<ffffffff8879028b>] :acpi_cpufreq:acpi_cpufreq_target+0x0/0x3f8
Mar 19 12:08:46 localhost kernel: [<ffffffff801a3dcc>] acpi_safe_halt+0x25/0x36
Mar 19 12:08:46 localhost kernel: [<ffffffff801a464a>] acpi_processor_idle_simple+0xfc/0x341
Mar 19 12:08:46 localhost kernel: [<ffffffff801a454e>] acpi_processor_idle_simple+0x0/0x341
Mar 19 12:08:46 localhost kernel: [<ffffffff80048f65>] cpu_idle+0x95/0xb8
Mar 19 12:08:46 localhost kernel: [<ffffffff80078ae2>] start_secondary+0x479/0x488
Mar 19 12:08:46 localhost kernel:
Mar 19 12:08:46 localhost kernel: handlers:
Mar 19 12:08:46 localhost kernel: [<ffffffff882219d8>] (intr_handler+0x0/0x694 [sundance])
Mar 19 12:08:46 localhost kernel: Disabling IRQ #169
номер IRQ постоянно один и тот же?
покажите выводcat /proc/interrupts
Да irq постоянно 169
[root@localhost ~]# cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
0: 232172 0 0 0 0 0 0 0 IO-APIC-edge timer
1: 9 0 0 0 0 0 0 0 IO-APIC-edge i8042
5: 0 0 0 0 0 0 0 0 IO-APIC-edge parport0
8: 1 0 0 0 0 0 0 0 IO-APIC-edge rtc
9: 0 0 0 0 0 0 0 0 IO-APIC-level acpi
12: 4 0 0 0 0 0 0 0 IO-APIC-edge i8042
66: 48 0 0 0 0 0 0 0 IO-APIC-level ehci_hcd:usb1, ehci_hcd:usb2
74: 7631 12915 0 0 0 1207 0 0 IO-APIC-level ata_piix, ata_piix
82: 308 0 0 0 0 0 0 6452 PCI-MSI eth0
98: 248 0 0 0 0 0 0 0 PCI-MSI hda_intel
169: 100 0 0 0 0 0 759 0 IO-APIC-level eth1
NMI: 581 111 87 88 88 103 86 87
LOC: 232143 232101 232028 231955 231882 231809 231736 231663
ERR: 0
MIS: 0
Кусок лога я выше кинул
]]>также проверьте наличие обновления для биоса Вашей материнки и, если есть, обновите
]]>cat /proc/interruptsмне непонятно, откуда Вы придумали, что ISPManager не работает на шестом центе
из логов, как минимум, /var/log/messages в той его части, где зафиксировано падение интерфейсовпокажите заодно lspci -v
[root@localhost ~]# lspci -v
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Capabilities: [88] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [80] Power Management version 3
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [a0] Express Root Port (Slot+), MSI 00
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Process or Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device 844d
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at fe000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
Flags: bus master, fast devsel, latency 0, IRQ 10
Memory at fe507000 (64-bit, non-prefetchable) [size=16]
Capabilities: [50] Power Management version 3
Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family US B Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
Flags: bus master, medium devsel, latency 0, IRQ 66
Memory at fe506000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
Subsystem: ASUSTeK Computer Inc. Device 8445
Flags: bus master, fast devsel, latency 0, IRQ 90
Memory at fe500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Ex press Root Port 1 (rev b5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Ex press Root Port 2 (rev b5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Ex press Root Port 3 (rev b5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Prefetchable memory behind bridge: 00000000d0000000-00000000d00fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Ex press Root Port 4 (rev b5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5) (prog-if 01 [Sub tractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=07, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe400000-fe4fffff
Prefetchable memory behind bridge: 00000000d0100000-00000000d01fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Ex press Root Port 6 (rev b5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 844d
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family US B Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
Flags: bus master, medium devsel, latency 0, IRQ 66
Memory at fe505000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1f.0 ISA bridge: Intel Corporation H61 Express Chipset Family LPC Controller (rev 05)
Subsystem: ASUSTeK Computer Inc. Device 844d
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel modules: i8xx_tco
00:1f.2 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 4 p ort SATA IDE Controller (rev 05) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: ASUSTeK Computer Inc. Device 844d
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 74
I/O ports at f110 [size=8]
I/O ports at f100 [size=4]
I/O ports at f0f0 [size=8]
I/O ports at f0e0 [size=4]
I/O ports at f0d0 [size=16]
I/O ports at f0c0 [size=16]
Capabilities: [70] Power Management version 3
Capabilities: [b0] PCI Advanced Features
Kernel driver in use: ata_piix
Kernel modules: ata_piix
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Contr oller (rev 05)
Subsystem: ASUSTeK Computer Inc. P8P67 Deluxe Motherboard
Flags: medium devsel, IRQ 185
Memory at fe504000 (64-bit, non-prefetchable) [size=256]
I/O ports at f040 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c-i801
00:1f.5 IDE interface: Intel Corporation 6 Series/C200 Series Chipset Family 2 p ort SATA IDE Controller (rev 05) (prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Device 844d
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 74
I/O ports at f0b0 [size=8]
I/O ports at f0a0 [size=4]
I/O ports at f090 [size=8]
I/O ports at f080 [size=4]
I/O ports at f070 [size=16]
I/O ports at f060 [size=16]
Capabilities: [70] Power Management version 3
Capabilities: [b0] PCI Advanced Features
Kernel driver in use: ata_piix
Kernel modules: ata_piix
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI E xpress Gigabit Ethernet controller (rev 06)
Subsystem: ASUSTeK Computer Inc. P8P67 and other motherboards
Flags: bus master, fast devsel, latency 0, IRQ 98
I/O ports at e000 [size=256]
Memory at d0004000 (64-bit, prefetchable) [size=4K]
Memory at d0000000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Kernel driver in use: r8169
Kernel modules: r8169
06:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=06, secondary=07, subordinate=07, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe400000-fe4fffff
Prefetchable memory behind bridge: 00000000d0100000-00000000d01fffff
Capabilities: [c0] Subsystem: ASUSTeK Computer Inc. Device 8462
07:00.0 Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP10 0A Integrated 10/100 Ethernet MAC + PHY (rev 31)
Subsystem: ASUSTeK Computer Inc. NX1001
Flags: bus master, medium devsel, latency 32, IRQ 169
I/O ports at d000 [size=128]
Memory at fe410000 (32-bit, non-prefetchable) [size=512]
Expansion ROM at d0100000 [disabled] [size=64K]
Capabilities: [50] Power Management version 2
Kernel driver in use: sundance
Kernel modules: sundance
Насколько я понял вот именно тот кусочек лога
Mar 19 08:06:59 localhost named[3490]: network unreachable resolving 'win.mail.ru/A/IN': 2a00:1148:1:1322::1:a002#53
Mar 19 06:07:07 localhost proftpd[30130]: 127.0.0.1 (ип[ип]) - FTP session closed.
Mar 19 06:07:07 localhost proftpd[29626]: 127.0.0.1 (ип[ип]) - FTP session closed.
Mar 19 06:07:08 localhost proftpd[29628]: 127.0.0.1 (ип[ип]) - FTP session closed.
Mar 19 06:07:08 localhost proftpd[29627]: 127.0.0.1 (ип[ип]) - FTP session closed.
Mar 19 06:07:08 localhost proftpd[29629]: 127.0.0.1 (ип[ип]) - FTP session closed.
Mar 19 08:11:32 localhost kernel: irq 169: nobody cared (try booting with the "irqpoll" option)
Mar 19 08:11:32 localhost kernel:
Mar 19 08:11:32 localhost kernel: Call Trace:
Mar 19 08:11:32 localhost kernel: <IRQ> [<ffffffff800bea36>] __report_bad_irq+0x30/0x7d
Mar 19 08:11:32 localhost kernel: [<ffffffff800bec74>] note_interrupt+0x1f1/0x232
Mar 19 08:11:32 localhost kernel: [<ffffffff800be174>] __do_IRQ+0x114/0x15b
Mar 19 08:11:32 localhost kernel: [<ffffffff8006d4d1>] do_IRQ+0xe9/0xf7
Mar 19 08:11:32 localhost kernel: [<ffffffff8005d615>] ret_from_intr+0x0/0xa
Mar 19 08:11:32 localhost kernel: <EOI> [<ffffffff8878e28b>] :acpi_cpufreq:acpi_cpufreq_target+0x0/0x3f8
Mar 19 08:11:32 localhost kernel: [<ffffffff801a3dcc>] acpi_safe_halt+0x25/0x36
Mar 19 08:11:32 localhost kernel: [<ffffffff801a464a>] acpi_processor_idle_simple+0xfc/0x341
Mar 19 08:11:32 localhost kernel: [<ffffffff801a454e>] acpi_processor_idle_simple+0x0/0x341
Mar 19 08:11:32 localhost kernel: [<ffffffff80048f65>] cpu_idle+0x95/0xb8
Mar 19 08:11:32 localhost kernel: [<ffffffff80078ae2>] start_secondary+0x479/0x488
Mar 19 08:11:32 localhost kernel:
Mar 19 08:11:32 localhost kernel: handlers:
Mar 19 08:11:32 localhost kernel: [<ffffffff881ba9d8>] (intr_handler+0x0/0x694 [sundance])
Mar 19 08:11:32 localhost kernel: Disabling IRQ #169
покажите заодно lspci -v
]]>