On 2014/11/16 16:24, Jiang Liu wrote: > On 2014/11/16 14:56, Guenter Roeck wrote: >> On 11/15/2014 08:20 PM, Jiang Liu wrote: >> >> I took the configuration file I had for the SMP case (located in the same >> directory in the git repository), disabled SMP, and ran "make >> savedefconfig". >> "old" is relative in this context; I don't usually create new configuration >> files for each new kernel release, so, yes, you could say that the file >> I used is "old". >> >> CONFIG_X86_LOCAL_APIC is enabled. Keep in mind this is a configuration file >> created with "make savedefconfig", so default settings are not included. >> Correct, CONFIG_X86_IO_APIC is not enabled, but that is not really >> surprising >> since its dependencies are not met as far as I can see. >> >> Overall, I am not sure I understand what you are trying to say. X86_IO_APIC >> depends on X86_64 (not set) or SMP (not set) or X86_32_NON_STANDARD (not >> set) >> or X86_UP_IOAPIC (not set because it depends on X86_UP_APIC which >> depends on >> !PCI_MSI). >> >> Does that mean that I'll have to disable PCI_MSI to get x86 uniprocessor >> support to work after your patch ? > Hi Guenter, > Previously, X86_IO_APIC will be enabled if PCI_MSI is enabled. > With my patch, x86_IO_APIC may be disabled even if PCI_MSI is enabled. > If X86_LOCAL_APIC/PCI_MSI are enabled and X86_IO_APIC is disabled, it > should work theoretically. I remember it works on my HP laptop. > Could you please help to check whether it solve the issue by manually > turning on X86_IO_APIC? Or could you please help to apply this patch? http://patchwork.ozlabs.org/patch/408402/ > Thanks! > Gerry > >> >> Thanks, >> Guenter >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
