ref: http://forums.freebsd.org/showthread.php?t=11515
http://support.microsoft.com/?scid=kb%3Ben-us%3B290101&x=8&y=13
1. active AHCI in your bios
MS:
This problem can occur if any of the following behavior occurs:
- A hardware device does not release its interrupt signal after being instructed to do so by the device driver.(驱动已处理了中断，通知了硬件，硬件仍然不断的触发中断A level-triggered interrupt)
- A device driver ignores the interrupt signal that had been initiated from its hardware and the device driver does not instruct its hardware to release the interrupt signal.（驱动未通知硬件中断已处理）
- A device driver claims the interrupt signal even though the interrupt signal had not been initiated from its hardware. (This behavior can only occur when multiple devices are sharing the same interrupt request (IRQ). （？？ 其他设备触发的中断，被驱动错误处理？？）
- The Edge/Level Control Register (ELCR) is set incorrectly. （Edge ,Level 控制寄存器设置问题）
- The ELCR interrupt-triggered devices share an IRQ (for example, a COM port and Peripheral Component Interconnect [PCI] small computer system interface [SCSI] controller). （ 共享中断？冲突？ ）