Writing "1" to that file will disable the OOM killer within that group. Should an out-of-memory situation come about, the processes in the affected group will simply block when attempting to allocate memory until the situation improves somehow.I understand some of the reasons for overcommitting memory when it's not known how much is really available or needed, but blocking on a definite out-of-memory seems just plain daft. If the kernel knows that no more memory is available why can't it pass that information on to user space?
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