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    SubjectRe: iotop: khugepaged at 99.99% (2.6.38.X)
    > You can already run "grep threshold /proc/zoneinfo" on the system
    > where you reproduced the hang the last time (the one running 2.6.38.4)
    > the one with 1.5G of ram. They all should be well below 512 (so in
    > theory not causing troubles because of the per-cpu stats, and with so
    > few cpus it shouldn't have been such a longstanding problem anyway).

    'grep threshold /proc/zoneinfo' returns nothing on this machine after
    a reboot and before a crash. Did I tell it's a single core machine?

    > If you didn't reboot that system after the last hang

    I'm sorry, I already rebooted the machine.

    > grep nr_isolated_anon /proc/zoneinfo
    > nr_isolated_anon 0
    > nr_isolated_anon 0
    > nr_isolated_anon 0

    Same here, on both machines. Both between reboot and crash.

    > This patch may help you to reproduce much quicker,

    I applied the patch. I plan to boot this kernel within the next hour.

    > - sync_migration = !(gfp_mask & __GFP_NO_KSWAPD);
    > + sync_migration = true;

    This was already done in my 2.6.38.2?

    Thomas


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