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    SubjectRe: [PATCH] Remove OOM killer from try_to_free_pages / all_unreclaimable braindamage
    On Sat, Nov 06, 2004 at 09:47:56AM +0000, Hugh Dickins wrote:
    > Problematic, yes: don't overlook that GFP_REPEAT and GFP_NOFAIL _can_
    > fail, returning NULL: when the process is being OOM-killed (PF_MEMDIE).

    that looks weird, why that? The oom killer must be robust against a task
    not going anyway regardless of this (task can be stuck in nfs or
    similar). If a fail path ever existed, __GFP_NOFAIL should not have been
    used in the first place. I don't see many valid excuses to use
    __GFP_NOFAIL if we can return NULL without the caller running into an
    infinite loop.

    btw, PF_MEMDIE has always been racy in the way it's being set, so it can
    corrupt the p->flags, but the race window is very small to trigger it
    (and even if it triggers, it probably wouldn't be fatal). That's why I
    don't use PF_MEMDIE in 2.4-aa.
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