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    SubjectRe: kdump: No udev events for memory hotplug?
    On Thu, Oct 27, 2011 at 8:45 PM, Dave Hansen <> wrote:
    > 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.

    I think we should separate the memory hot-plug issues from ballooning issues,
    so probably we need another uevent for this...
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      Last update: 2011-10-27 15:21    [W:0.020 / U:10.496 seconds]
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