我有两个双核HP ProLiant DL3680 G6运行RHEL 5.5 64位。 其中之一，缺less两个networking接口（eth2和eth7），即它们不可用：
# ifconfig eth2 eth2: error fetching interface information: Device not found # ethtool eth2 Settings for eth2: Cannot get device settings: No such device Cannot get wake-on-lan settings: No such device Cannot get message level: No such device Cannot get link status: No such device No data available 对于一个运行正常的网卡和丢失的网卡，我发现“lspci -v”命令的输出有差异。 在这里您可以阅读输出并注意不同之处：
02:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20) Subsystem: Hewlett-Packard Company NC382i Integrated Quad Port PCI Express Gigabit Server Adapter Flags: bus master, fast devsel, latency 0, IRQ 170 Memory at f6000000 (64-bit, non-prefetchable) [size=32M] [virtual] Expansion ROM at e6310000 [disabled] [size=64K] Capabilities: [48] Power Management version 3 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/4 Enable- Capabilities: [a0] MSI-X: Enable+ Mask- TabSize=9 Capabilities: [ac] Express Endpoint IRQ 0 Capabilities: [100] Device Serial Number 50-75-4b-fe-ff-55-26-00 Capabilities: [110] Advanced Error Reporting Capabilities: [150] Power Budgeting Capabilities: [160] Virtual Channel 03:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet Subsystem: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet Flags: fast devsel, IRQ 210 Memory at fb2c0000 (64-bit, non-prefetchable) [disabled] [size=256K] Capabilities: [48] Power Management version 3 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable- Capabilities: [a0] MSI-X: Enable- Mask- TabSize=1 Capabilities: [ac] Express Endpoint IRQ 0 Capabilities: [100] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [110] Advanced Error Reporting Capabilities: [150] Power Budgeting Capabilities: [160] Virtual Channel
注意丢失的描述string“（rev 20）”，在禁用的“Memory”行和报告的序列号中。
你认为这是一个硬件问题？ 也许网卡错误，他们的ROM没有正确更新？
提前感谢
更新2014-07-28
劳伦斯要求我显示dmesg输出。 在dmesg输出中find以下行：
ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 18 (level, low) -> IRQ 210 PCI: Setting latency timer of device 0000:03:00.0 to 64 bnx2 0000:03:00.0: Firmware not running, aborting. ACPI: PCI interrupt for device 0000:03:00.0 disabled ACPI: PCI Interrupt 0000:03:00.1[B] -> GSI 19 (level, low) -> IRQ 218 PCI: Setting latency timer of device 0000:03:00.1 to 64 bnx2 0000:03:00.1: Firmware not running, aborting. ACPI: PCI interrupt for device 0000:03:00.1 disabled
我从来没有更新这些网卡的固件。