Messages in this thread | | | Subject | Re: kdump: No udev events for memory hotplug? | From | Dave Hansen <> | Date | Thu, 27 Oct 2011 05:45:33 -0700 |
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On Thu, 2011-10-27 at 09:30 +0200, Heiko Carstens wrote: > > Are any events generated for memory add? > > Looks like uevents are only genereted when memory gets registered and > unregistered, but not when when it gets set online or offline. > To achieve that you would need to add similar code to > store_mem_state()/memory_block_change_state() in drivers/base/memory.c > like we have it already in store_online() in drivers/base/cpu.c
Instead of doing it at that low a level, perhaps we should be generating events when 'totalram_pages' changes. That way, we'll also trigger events when things like ballooning happen.
-- Dave
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