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試試kernel參數」acpi=off」,如果此參數沒有帶來任何改變,那麼這不是一個ACPI bug。反之,則這很可能是一個ACPI bug。 確定了是一個ACPI bug後,我們還有其他一些參數來更進一步的區分到底是ACPI哪個部分的bug。

acpi=ht

這個參數和"acpi=off"幾乎一樣,它禁止了除多處理器配置相關的內容以外的所有ACPI功能。如果acpi=off正常,但acpi=ht 不正常, 則解析ACPI 表或者Linux SMP的代碼有bug.

pci=noacpi

禁止使用ACPI來處理任何PCI相關的內容,包括PCI root bus的枚舉和PCI設備中斷路由。

acpi=noirq

禁止使用ACPI來處理PCI設備中斷路由,和pci=noacpi的區別是它允許使用ACPI來枚舉PCI root bus.

pnpacpi=off

禁止使用ACPI來枚舉PNP設備,比如串口、PS2鍵盤鼠標等。

noapic

禁止使用io-apic來做設備中斷路由,這樣做的效果之一是ACPI返回的中斷路由表將是針對PIC(8259)的。

nolapic

禁止使用Local-APIC和IO-APIC。

ACPI (Advanced Configuration and Power Interface) is a standard for handling power management. Older systems may not support ACPI full, so sometimes it helps to give the kernel a hint to not use it. "acpi=off"

APIC (Advanced Programmable Interrupt Controller) is a kind of feature found on newer systems. The "local" version is called "LAPIC". What this controller can do is be set up to generate and handle interrupts, a signal the hardware uses to pass messages. Again, some implementations of APIC can have problems on older system, and so it is useful to disable it. "noapic" and "nolapic".

 

原文出自:

http://sirion-notes.blogspot.tw/2009/12/linux-acpioff-noapic.html
http://askubuntu.com/questions/52096/what-do-the-different-boot-options-mean-i-e-acpi-off-noapic-nolapic-etc

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