On one of my Atoms I found that actually the problem (on that hardware) was that Plan 9's memory probing was zapping one of the bytes in its tables, preventing the second CPU from being seen. ("PCMP" changed to 0xCC "CMP"). A recent change to pc/memory.c might have fixed that.
On 10 May 2012 09:53, Justin Bedo <c...@cua0.org> wrote: > The > MP tables are broken so you can't use the second core. >