On Fri, 12 Jan 2018, Ming Lei wrote: > From: Christoph Hellwig <hch@xxxxxx> > > 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@xxxxxxxxxx> > Tested-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> > Tested-by: Stefan Haberland <sth@xxxxxxxxxxxxxxxxxx> > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> FWIW, Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
