quasar linux # du -sh /lib/modules/2.6.19*/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko

20K     /lib/modules/2.6.19-bdz-r1/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko
16K     /lib/modules/2.6.19-bdz-r2/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko
16K     /lib/modules/2.6.19-bdz-r3/kernel/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.ko

2.6.19-bdz-r1 -> ACPI + built-in tables

2.6.19-bdz-r2 -> built-in tables only (all of them)

2.6.19-bdz-r3 -> built-in tables only (only Sonoma tables)