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    SubjectRe: [RFC][PATCH] PM: Force GFP_NOIO during suspend/resume (was: Re: [linux-pm] Memory allocations in .suspend became very unreliable)
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    On Sat, 2010-01-30 at 22:37 +0200, Maxim Levitsky wrote: 
    > On Sat, 2010-01-30 at 19:47 +0100, Rafael J. Wysocki wrote:
    > > On Saturday 30 January 2010, Maxim Levitsky wrote:
    > > > On Sun, 2010-01-17 at 01:38 +0100, Rafael J. Wysocki wrote:
    > > > > Hi,
    > > > >
    > > > > I thing the snippet below is a good summary of what this is about.
    > > >
    > > > Any progress on that?
    > >
    > > Well, I'm waiting for you to report back:
    > > http://patchwork.kernel.org/patch/74740/
    > >
    > > The patch is appended once again for convenience.
    >
    > Ah, sorry!
    >
    > I used the second version (with the locks) and it works for sure (~500
    > cycles)
    >
    > However, as I discovered today, it takes the lock also for GFP_ATOMIC,
    > and thats why I see several backtraces in the kernel log. Anyway this
    > isn't important.
    >
    > I forgot all about this patch, and I am compiling the kernel right away.
    > Will put the kernel through the hibernate loop tonight.

    I did 123 hibernate cycles on my notebook. Everything is fine.
    This patch very very likely is working.

    Best regards,
    Maxim Levitsky



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