jm + ooms   1

How to stop Ubuntu Xenial (16.04) from randomly killing your big processes
ugh.
Unfortunately, a bug was recently introduced into the allocator which made it sometimes not try hard enough to free kernel cache memory before giving up and invoking the OOM killer. In practice, this means that at random times, the OOM killer would strike at big processes when the kernel tries to allocate, say, 16 kilobytes of memory for a new process’s thread stack — even when there are many gigabytes of memory in reclaimable kernel caches!
oom-killer  ooms  linux  ops  16.04 
march 2017 by jm

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