> > This is broken -- these word stores assure a proper initialization on
> >pre-CPUID processors.
>
> boot_cpu_data is a static-extent object with an explicit initialiser
> (i.e., ".data") in setup.c in 2.2.21rc2, 2.4.19-pre4, and 2.5.7.
> Any further "initialisation" by APs is called "clobbering".
boot_cpu_data is initialized and then copied to cpu_data for each CPU
booted. If say the BSP supports cpuid but an AP does not (possible for an
i486 setup), leftover values will be stored for the AP incorrectly.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/