Xen KVM虛擬化ipmi錯誤答案

標籤：ipmi_si: interface detection failed

問題說明：

用DEll R720伺服器安裝xen，kvm服務。建立好guest並啟動，進入系統，系統運行都沒問題，不過開機的時候發現一個failed提示，如下

Xen DomU啟動中提示

# dmesg | grep PCI
PCI: Warning: Cannot find a gap in the 32bit address range
PCI: Unassigned devices with 32bit resource registers may break!
Allocating PCI resources starting at 400100000 (gap: 400100000:400000)
PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
PCI: Fatal: No config space access function found
PCI: System does not support PCI
PCI: System does not support PCI
PCI: max bus depth: 0 pci_try_num: 1
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
pciehp: PCI Express Hot Plug Controller Driver version: 0.4
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5

# dmesg | grep ipmi

ipmi message handler version 39.2

IPMI System Interface driver.

ipmi_si: Adding default-specified kcs state machine

ipmi_si: Trying default-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Adding default-specified smic state machine

ipmi_si: Trying default-specified smic state machine at i/o address 0xca9, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Adding default-specified bt state machine

ipmi_si: Trying default-specified bt state machine at i/o address 0xe4, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Unable to find any System Interface(s)

650) this.width=650;" src="/e/u261/themes/default/images/spacer.gif" style="background:url("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd;" alt="spacer.gif" />650) this.width=650;" src="http://s3.51cto.com/wyfs02/M00/49/D1/wKiom1QbmsrTdZ5xAAKm2km44Eo176.jpg" title="QQ圖片20140919105349.jpg" alt="wKiom1QbmsrTdZ5xAAKm2km44Eo176.jpg" />

KVM guest啟動中提示

ipmi message handler version 39.2

IPMI System Interface driver.

ipmi_si: Adding default-specified kcs state machine

ipmi_si: Trying default-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Adding default-specified smic state machine

ipmi_si: Trying default-specified smic state machine at i/o address 0xca9, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Adding default-specified bt state machine 

ipmi_si: Trying default-specified bt state machine at i/o address 0xe4, slave address 0x0, irq 0

ipmi_si: Interface detection failed

ipmi_si: Unable to find any System Interface(s)

650) this.width=650;" src="/e/u261/themes/default/images/spacer.gif" style="background:url("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd;" alt="spacer.gif" />650) this.width=650;" src="http://s3.51cto.com/wyfs02/M02/49/D3/wKioL1Qbm0Djn0aDAAOaNFdTFcw162.jpg" title="QQ20140919105500.png" alt="wKioL1Qbm0Djn0aDAAOaNFdTFcw162.jpg" />

因為這個問題查資料已經有半個月時間，各種Google搜，加入虛擬化群問，找不到答案，因為不影響使用，也曾多次糾結放棄尋找問題，不過這塊石頭一直在心裡放不下

······

直到剛看到紅帽官方的文檔，終於眼前一亮

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/6.5_Technical_Notes/

• kernel component

• Typically, on platforms with no Intelligent Platform Management Interface (IPMI) hardware the user can see the following message the on the boot console and in dmesg log:

  Could not set up I/O space

  This message can be safely ignored, unless the system really does have IPMI hardware. In that case, the message indicates that the IPMI hardware could not be initialized. In order to support Advanced Configuration and Power Interface (ACPI) opregion access to IPMI functionality early in the boot, the IPMI driver has been statically linked with the kernel image. This means that the IPMI driver is "loaded" whether or not there is any hardware. The IPMI driver will try to initialize the IPMI hardware, but if there is no IPMI hardware present on the booting platform, the driver will print error messages on the console and in the dmesg log. Some of these error messages do not identify themselves as having been issued by the IPMI driver, so they can appear to be serious, when they are harmless. 

本文出自 “金戈鐵馬踏飛燕的部落格” 部落格，請務必保留此出處http://bbotte.blog.51cto.com/6205307/1555049

Xen KVM虛擬化ipmi錯誤答案