2.6.24-rc4-git5, got this cpufreq crash on x86 64-bit, during 'make 
randconfig' random bootup testing:

powernow-k8: BIOS error - no PSB or ACPI _PSS objects
------------[ cut here ]------------
kernel BUG at drivers/cpufreq/cpufreq.c:1060!
invalid opcode: 0000 [1] SMP
[...]
RIP: 0010:[<ffffffff8056021a>]  [<ffffffff8056021a>] cpufreq_remove_dev+0x160/0x2ad
[...]
Call Trace:
 [<ffffffff80455c03>] sysdev_driver_unregister+0x53/0x8a
 [<ffffffff8055f635>] cpufreq_register_driver+0x148/0x188
 [<ffffffff808436cb>] kernel_init+0x14b/0x318
 [<ffffffff8020ce78>] child_rip+0xa/0x12
 [<ffffffff80843580>] kernel_init+0x0/0x318
 [<ffffffff8020ce6e>] child_rip+0x0/0x12

kernel is 2.6.24-rc4-git5-ish + x86.git. (but no cpufreq changes to the 
upstream code) crashlog and config attached. Will try with vanilla 
-latest as well.

	Ingo