Re: [ACPI] ACPI hangs at boot sometimes

[Len B. <len...@in...>]

On Thu, 2004-05-13 at 18:51, Mark Eaton wrote:

> When booting my system it sometime hangs right after giving me the message 
> Edge set to Level Trigger. but most times it works fine. Is this a known 
> bug ? possibly a buggy ACPI implementation ?
> I have included the ACPI portion of a successful boot below. If you want/need 
> more information just ask.
> 
> May 12 08:33:14 beldin kernel: ACPI: Subsystem revision 20040326
> May 12 08:33:14 beldin kernel: spurious 8259A interrupt: IRQ7.
> May 12 08:33:14 beldin kernel: ACPI: IRQ10 SCI: Edge set to Level Trigger.
> May 12 08:33:14 beldin kernel: ACPI: Interpreter enabled
> May 12 08:33:14 beldin kernel: ACPI: Using PIC for interrupt routing            
> May 12 08:33:14 beldin kernel: ACPI: PCI Root Bridge [PCI0] (00:00)
> May 12 08:33:14 beldin kernel: PCI: Probing PCI hardware (bus 00)
> May 12 08:33:14 beldin kernel: ACPI: PCI Interrupt Routing Table 
> [\_SB_.PCI0._PRT]
> May 12 08:33:14 beldin kernel: ACPI: PCI Interrupt Link [LNKA] (IRQs *4)
> May 12 08:33:14 beldin kernel: ACPI: PCI Interrupt Link [LNKB] (IRQs *5)
> May 12 08:33:14 beldin kernel: ACPI: PCI Interrupt Link [LNKC] (IRQs *9)
> May 12 08:33:14 beldin kernel: ACPI: PCI Interrupt Link [LNKD] (IRQs *11)
> May 12 08:33:14 beldin kernel: ACPI: Embedded Controller [EC0] (gpe 1)

Yes, I'd like to see if the complete dmesg includes this line:
Local APIC disabled by BIOS -- reenabling.

Yes, the problem is known, but the solution is not.

We've seen this problem go away many times with a BIOS upgrade,
are you running the latest?

There is also a workaround here to temporarily disable the APIC timer:
http://bugme.osdl.org/show_bug.cgi?id=1269

Perhaps you can update that bug report to say if the workaround
helps your system or not.

thanks,
-Len