Re: 2.6.23-rc1-mm1

["Torsten Kaiser" <just.for.lkml@googlemail.com>]

On 7/26/07, Torsten Kaiser <just.for.lkml@googlemail.com> wrote:
> DISCONTIGMEM+SLUB:
> [   39.833272] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [   40.016659] Kernel panic - not syncing: IO-APIC + timer doesn't
> work! Try using the 'noapic' kernel parameter
> DISCONTIGMEM+SLAB:
> Boots until it can't find / because I didn't append the correct initrd
> It also hit the MP-BIOS bug, but was not bothered by it:
> [   36.696965] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [   36.880537] Using local APIC timer interrupts.
> [   36.932215] result 12500283
> [   36.940581] Detected 12.500 MHz APIC timer.
>
> So I think, I will postpone SPARSEMEM until -mm2, as there are seem to
> be some problems in that area (Re: 2.6.23-rc1-mm1 sparsemem_vmemamp
> fix)
>
> But maybee I will get SLUB to work. ;)

SLUB works, if I reboot (Alt+SysRq+B) from a 2.6.22-rc6-mm1 kernel.

Otherwise it will panic with IO-APIC + timer not working.

Differences in dmesg
2.6.22-rc6-mm1 has:
[    0.000000] Nvidia board detected. Ignoring ACPI timer override.
[    0.000000] If you got timer trouble try acpi_use_timer_override
and
[    0.000000] ACPI: BIOS IRQ0 pin2 override ignored.
and
[    0.000000] TSC calibrated against PM_TIMER

 23-rc1-mm1 has:
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] ACPI: IRQ2 used by override.
and
[   37.340319] ..MP-BIOS bug: 8254 timer not connected to IO-APIC

I did not need to use acpi_use_timer_override with the older kernel.

Do you need more info about my board/ BIOS/ ACPI tables?

After the warm-boot trick 2.6.23-rc1-mm1 seems stable right now...

Torsten