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    SubjectRe: [PATCH] mm: check zone->all_unreclaimable in all_unreclaimable()
    Date
    > > > Hmm.. Although it solves the problem, I think it's not a good idea that
    > > > depends on false alram and give up the retry.
    > >
    > > Any alternative proposals? We should get the livelock fixed if possible..
    >
    > I agree with Minchan and can't think this is a real fix....
    > Andrey, I'm now trying your fix and it seems your fix for oom-killer,
    > 'skip-zombie-process' works enough good for my environ.
    >
    > What is your enviroment ? number of cpus ? architecture ? size of memory ?

    me too. 'skip-zombie-process V1' work fine. and I didn't seen this patch
    improve oom situation.

    And, The test program is purely fork bomb. Our oom-killer is not silver
    bullet for fork bomb from very long time ago. That said, oom-killer send
    SIGKILL and start to kill the victim process. But, it doesn't prevent
    to be created new memory hogging tasks. Therefore we have no gurantee
    to win process exiting and creating race.

    *IF* we really need to care fork bomb issue, we need to write completely
    new VM feature.




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