svn commit: r233961 - head/sys/x86/x86

[Attilio Rao]

Il 06 aprile 2012 22:19, Justin T. Gibbs <gibbs at freebsd.org> ha scritto:
> Author: gibbs
> Date: Fri Apr  6 21:19:28 2012
> New Revision: 233961
> URL: http://svn.freebsd.org/changeset/base/233961
>
> Log:
>  Fix interrupt load balancing regression, introduced in revision
>  222813, that left all un-pinned interrupts assigned to CPU 0.
>
>  sys/x86/x86/intr_machdep.c:
>        In intr_shuffle_irqs(), remove CPU_SETOF() call that initialized
>        the "intr_cpus" cpuset to only contain CPU0.
>
>        This initialization is too late and nullifies the results of calls
>        the intr_add_cpu() that occur much earlier in the boot process.
>        Since "intr_cpus" is statically initialized to the empty set, and
>        all processors, including the BSP, already add themselves to
>        "intr_cpus" no special initialization for the BSP is necessary.

For instance, the SETOF is not necessary here because
set_interrupt_apic_ids() already does intr_add_cpu() for BSP too.

Attilio


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