lkml.org 
[lkml]   [2011]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: kdump: No udev events for memory hotplug?
    From
    On Thu, Oct 27, 2011 at 8:45 PM, Dave Hansen <haveblue@us.ibm.com> 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...
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2011-10-27 15:21    [W:0.026 / U:0.004 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site