[elrepo] kernel-ml compilation flags

[Alan Bartlett]

On 23 September 2014 20:46, Martin Ichilevici de Oliveira
<iomartin at iomartin.net> wrote:
>
> I like the configuration of EL7 better regarding "NUMA behaviour".
>
> Checking the config options of both machines:
>
> EL7 machines:
> $ grep NUMA /boot/config-3.16.3-1.el7.elrepo.x86_64
> CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
> CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
> CONFIG_ARCH_USES_NUMA_PROT_NONE=y
> CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
> CONFIG_NUMA_BALANCING=y
> # CONFIG_X86_NUMACHIP is not set
> CONFIG_NUMA=y
> CONFIG_AMD_NUMA=y
> CONFIG_X86_64_ACPI_NUMA=y
> # CONFIG_NUMA_EMU is not set
> CONFIG_USE_PERCPU_NUMA_NODE_ID=y
> CONFIG_ACPI_NUMA=y
>
> EL6 machine:
> $ grep NUMA /boot/config-3.16.3-1.el6.elrepo.x86_64
> CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
> CONFIG_ARCH_WANTS_PROT_NUMA_PROT_NONE=y
> # CONFIG_NUMA_BALANCING is not set
> # CONFIG_X86_NUMACHIP is not set
> CONFIG_NUMA=y
> CONFIG_AMD_NUMA=y
> CONFIG_X86_64_ACPI_NUMA=y
> # CONFIG_NUMA_EMU is not set
> CONFIG_USE_PERCPU_NUMA_NODE_ID=y
> CONFIG_ACPI_NUMA=y
>
> In particular, I was missing CONFIG_NUMA_BALANCING and
> CONFIG_NUMA_BALANCING_DEFAULT from EL6, which are set on EL7. However,
> I'm not sure if these config options depend on any other being set as
> well.

Thank you for the details. I shall make a note to examine the
configurations before the next kernel source update.

An RFE has been opened against the EL6 kernel-ml package --

http://elrepo.org/bugs/view.php?id=509

Alan.