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    SubjectRe: [PATCH 1/2] genirq/affinity: assign vectors to all possible CPUs
    On Fri, 12 Jan 2018, Ming Lei wrote:

    > From: Christoph Hellwig <hch@lst.de>
    >
    > Currently we assign managed interrupt vectors to all present CPUs. This
    > works fine for systems were we only online/offline CPUs. But in case of
    > systems that support physical CPU hotplug (or the virtualized version of
    > it) this means the additional CPUs covered for in the ACPI tables or on
    > the command line are not catered for. To fix this we'd either need to
    > introduce new hotplug CPU states just for this case, or we can start
    > assining vectors to possible but not present CPUs.
    >
    > Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
    > Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
    > Tested-by: Stefan Haberland <sth@linux.vnet.ibm.com>
    > Cc: linux-kernel@vger.kernel.org
    > Cc: Thomas Gleixner <tglx@linutronix.de>

    FWIW, Acked-by: Thomas Gleixner <tglx@linutronix.de>

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