[9fans] smp issues with dual core cpu?

["Gabriel Diaz" <gabidiaz@gmail.com>]

hello

i have a dual core 2 (intel dual core 2 6600) cpu, when booting
without *nomp= the kernel prints both cpu cores but get hanged
randomly, sometimes it runs for a while and i can run commands,
sometimes it doesn't start the shell. Ctrl+tt keystrokes work.

i have disabled usb, network card (rtl), serial and parallel ports,
audio, and all the devices the bios let me disable, but the problem is
still here.

timesync is not running on the machine, and cron seems to behave correctly.

when using one core it work as expected.

any hints about what could be happening? i have tested plan9 time ago
on dual core 2 machines and worked fine with both cores enabled.

the booting messages seems normal (the same as when booting with a
single core enabled but the cpu1: line) i didn't run diff on them. . .

thanks

gabi