[mythtv-users] Occasional hard freezes
Michael T. Dean
mtdean at thirdcontact.com
Sat Oct 29 15:20:35 EDT 2005
Ryan Steffes wrote:
> Changing to acpi=off did not fix the problem. I'm a little concerned
> with whether it's really off though, it seems to turn on local apic
> before reading the kernel options:
>
> Oct 29 08:56:54 mythtv kernel: Found and enabled local APIC!
> Oct 29 08:56:54 mythtv kernel: Initializing CPU#0
> Oct 29 08:56:54 mythtv kernel: Kernel command line: auto
> BOOT_IMAGE=MythTV ro root=341 acpi=off noapic nolapic resume=/dev/hdb3
> splash=silent
> Oct 29 08:56:54 mythtv kernel: bootsplash: silent mode.
>
> Later, it does say:
>
> Oct 29 08:56:54 mythtv kernel: PCI: PCI BIOS revision 2.10 entry at
> 0xfbe50, last bus=2
> Oct 29 08:56:54 mythtv kernel: PCI: Using configuration type 1
> Oct 29 08:56:54 mythtv kernel: mtrr: v2.0 (20020519)
> Oct 29 08:56:54 mythtv kernel: ACPI: Subsystem revision 20050211
> Oct 29 08:56:54 mythtv kernel: ACPI: Interpreter disabled.
> Oct 29 08:56:54 mythtv kernel: Linux Plug and Play Support v0.97 (c)
> Adam Belay
> Oct 29 08:56:54 mythtv kernel: pnp: PnP ACPI: disabled
> Oct 29 08:56:54 mythtv kernel: PnPBIOS: Disabled
> Oct 29 08:56:54 mythtv kernel: PCI: Probing PCI hardware
> Oct 29 08:56:54 mythtv kernel: PCI: Probing PCI hardware (bus 00)
> Oct 29 08:56:54 mythtv kernel: PCI: Using IRQ router default
> [10de/01e0] at 0000:00:00.0
>
> but it doesn't say anything about local apic again. How can I check
> that it's really disabled?
If you have a relatively nice BIOS, it will enable you to disable ACPI,
LAPIC, and possibly APIC. Try that in addition to the kernel params.
Mike
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