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    SubjectRe: [PATCH 00/15] Swap-over-NBD without deadlocking V8
    On Tue, Feb 7, 2012 at 9:27 PM, Mel Gorman <> wrote:
    > On Tue, Feb 07, 2012 at 08:45:18PM +0800, Hillf Danton wrote:
    >> If it is feasible to bypass hang by tuning min_mem_kbytes,
    > No. Increasing or descreasing min_free_kbytes changes the timing but it
    > will still hang.
    >> things may
    >> become simpler if NICs are also tagged.
    > That would mean making changes to every driver and they do not necessarily
    > know what higher level protocol like TCP they are transmitting. How is
    > that simpler? What is the benefit?
    The benefit is to avoid allocating sock buffer in softirq by recycling,
    then the changes in VM core maybe less.


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