Some problems installing dragonFly BSD. Can anybody help?

Sepherosa Ziehau sepherosa at
Mon May 9 18:23:49 PDT 2011

On Mon, May 9, 2011 at 4:49 PM, Matthias Rampke
<matthias.rampke at> wrote:
> Disabling IO APIC didn't help with the SMP kernel, it complains about lapic initialization before dropping to the debugger (is there a LAPIC loader tunable? I can't find any documentation on this or hw.apic_io_enable). Are SMP kernels on UP machines *supposed* to work anyway?

Well, disabling IO APIC is no longer recommended for SMP since 2.10.
As about LAPIC initialization failure, could you set boot_verbose and
take a photo or setting up a serial console to give me the dmesg
before the panic?  And I need the output of 'acpidump -t' and
'mptable' (you could run these two commands from a UP kernel).

Best Regards,

Tomorrow Will Never Die

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