On Fri Nov 2 09:52:22 EDT 2012, 9f...@hamnavoe.com wrote: > > I am running the Plan 9 on the single CPU only (old IBM T30). > > Sorry, that means we are looking at two different panics. > Mine seems to be a side effect of mpacpi.c trying to enable > the same cpu twice: > > cpu0: 1599MHz GenuineIntel Atom (cpuid: AX 0x106C2 DX 0xBFE9FBFF) > ... > mpinit: mp table describes 2 cpus > mpinit: scanning acpi madt for extra cpus > ... > mpacpiproc: apic 0xf04705c0 > mpacpiproc: apic 0xf0470648 > cpu1: 1600MHz GenuineIntel Atom (cpuid: AX 0x106C2 DX 0xBFE9FBFF) > cpu1: 1599MHz GenuineIntel Atom (cpuid: AX 0x106C2 DX 0xBFE9FBFF)
i found in nix that when mixing acpi and mp i had to defend against double-entries for i/o apics since the numbering can be different. but it will be interesting to see what happened to start 2 cpu1s. [...] ioapic: 1 addr fec00000 base 0 ioapic: 3 addr fec8a000 base 24 ioapic: 8 same pa as apic 1 ioapic: 9 same pa as apic 3 - erik
