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Re: [PATCH] detect problematic kernel configs: msg#00111

linux.real-time.xenomai.devel

Subject: Re: [PATCH] detect problematic kernel configs

Jan Kiszka wrote:
> Hi,
>
> this patch tries to reduce the traps newbies may tap by leaving (for us)
> well-known problematic kernel switches on. And are there any futher I
> forgot, e.g. on other archs?
>
> Jan
> Index: ksrc/arch/i386/Kconfig
> ===================================================================
> --- ksrc/arch/i386/Kconfig (revision 924)
> +++ ksrc/arch/i386/Kconfig (working copy)
> @@ -194,3 +194,19 @@ depends on XENO_OPT_NUCLEUS
> source "drivers/xenomai/Kconfig"
>
> endmenu
> +
> +if XENOMAI = y
> +
> +comment "WARNING: Potential latency killers detected!"
> + depends on PM || ACPI || CPU_FREQ
> +
> +comment "Power Management (PM)"
> + depends on PM
> +
> +comment "ACPI"
> + depends on ACPI

Only ACPI_PROCESSOR is a latency killer.

--


Gilles Chanteperdrix.


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