I've found a reproducible case where you can create an infinite loop inside the oom killer if you create a cgroup with a single process that has oom_adj=-17 and trigger an OOM situation inside that cgroup. It seems that oom_adj should probably be ignored in the case where it makes the OOM situation unsolvable. Here's an excerpt from the console output when the bug is triggered: Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child Memory cgroup out of memory: kill process 25306 (memeater) score 0 or a child _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
