We are trying to build a tiny SPARC32 Linux SMP kernel for debugging use. The kernel is compiled with SMP support and Enhanced RTC.

 

With the command line parameter 

   -M SS-600MP -smp 1

the kernel boots successfully.

But with

   -M SS-600MP -smp 2

booting will hang at 

SILO Version 1.4.13

boot:

Loaded kernel version 2.6.18

Loading initial ramdisk (3212127 bytes at 0x3000000 phys, 0x60000000 virt)...

PROMLIB: obio_ranges 1

Booting Linux...

In addition, Debian netinst cdrom will hang at this point if booting with SMP.

NetBSD with an GENERIC.MP kernel can only recognize one core when booting with 2 cores.

Is there some bug with the SPARC32 SMP implementation?

Or any one know how should I configure the SPARC32 Linux kernel to boot correctly with SMP?

Many thanks!

Naruil