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    SubjectRe: [RFC][PATCH 1/5] PM/Freezer: Disable OOM killer when tasks are frozen
    On Thursday 07 May 2009, Nigel Cunningham wrote:
    > Hi.


    > On Thu, 2009-05-07 at 00:41 +0200, Rafael J. Wysocki wrote:
    > > From: Rafael J. Wysocki <>
    > >
    > > The OOM killer is not really going to work while tasks are frozen, so
    > > we can just give up calling it in that case.
    > >
    > > This will allow us to safely use memory allocations for decreasing
    > > the number of saveable pages in the hibernation core code instead of
    > > using any artificial memory shriking mechanisms for this purpose.
    > Should we disable the warning that the nopage path gives if tasks are
    > frozen? I'm in two minds - if you get problems as a result, it might
    > help to diagnose them. On the other hand, you don't want tons of
    > warnings due to the hibernation code trying to allocate memory it can't
    > get. In TuxOnIce, I currently do all allocations with __GFP_NOWARN.

    Yes, I use __GFP_NOWARN in the next patches too. :-)


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