Tetsuo Handa wrote: > Tetsuo Handa wrote: > > Hello. > > > > I can boot linux-next-20130205 using kernel config at > > http://I-love.SAKURA.ne.jp/tmp/config-3.8-rc6-next-20130205 . > > But I get VMware's virtual machine kernel stack fault (hardware reset) as > > soon > > as kernel is loaded if CONFIG_DEBUG_VIRTUAL=y is added to the config above. > > > > Since I don't get kernel stack fault if CONFIG_DEBUG_VIRTUAL=y is added to > > kernel config generated by "make allnoconfig", I guess something is wrong > > with > > code which is executed at very early stage of bootup. > > > > Any clue? > > > > Regards. > > > > This bug is not yet fixed as of 3.9-rc1. > Should I run git bisect? > > Regards. >
I found the location of "hardware reset" trigger. It is __pa_symbol(&boot_params) call, for I don't encounter "hardware reset" if I remove the "//" from below debug patch. This bug is not yet fixed as of 3.9.0-rc2-00188-g6c23cbb . --- a/arch/x86/kernel/microcode_intel_early.c +++ b/arch/x86/kernel/microcode_intel_early.c @@ -741,7 +741,9 @@ load_ucode_intel_bsp(void) #ifdef CONFIG_X86_32 struct boot_params *boot_params_p; + //while (1); boot_params_p = (struct boot_params *)__pa_symbol(&boot_params); + while (1); ramdisk_image = boot_params_p->hdr.ramdisk_image; ramdisk_size = boot_params_p->hdr.ramdisk_size; initrd_start_early = ramdisk_image; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/