kdump: No udev events for memory hotplug?

Dave Hansen haveblue at us.ibm.com
Thu Oct 27 08:45:33 EDT 2011

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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