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Alexey Avramov 2018-07-21 17:41:23 +09:00
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@ -10,11 +10,16 @@ OOM killer doesn't prevent OOM conditions. And OOM conditions may cause loss dis
Here are the words of some users: Here are the words of some users:
>"How do I prevent Linux from freezing when out of memory? >"How do I prevent Linux from freezing when out of memory?
Today I (accidentally) ran some program on my Linux box that quickly used a lot of memory. My system froze, became unresponsive and thus I was unable to kill the offender.
How can I prevent this in the future? Can't it at least keep a responsive core or something running?" >Today I (accidentally) ran some program on my Linux box that quickly used a lot of memory. My system froze, became unresponsive and thus I was unable to kill the offender.
>How can I prevent this in the future? Can't it at least keep a responsive core or something running?"
[serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory) [serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory)
> "With or without swap it still freezes before the OOM killer gets run automatically. This is really a kernel bug that should be fixed (i.e. run OOM killer earlier, before dropping all disk cache). Unfortunately kernel developers and a lot of other folk fail to see the problem. Common suggestions such as disable/enable swap, buy more RAM, run less processes, set limits etc. do not address the underlying problem that the kernel's low memory handling sucks camel's balls." > "With or without swap it still freezes before the OOM killer gets run automatically. This is really a kernel bug that should be fixed (i.e. run OOM killer earlier, before dropping all disk cache). Unfortunately kernel developers and a lot of other folk fail to see the problem. Common suggestions such as disable/enable swap, buy more RAM, run less processes, set limits etc. do not address the underlying problem that the kernel's low memory handling sucks camel's balls."
[serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory#comment417508_390625) [serverfault](https://serverfault.com/questions/390623/how-do-i-prevent-linux-from-freezing-when-out-of-memory#comment417508_390625)
Also look at "Why are low memory conditions handled so badly?" [r/linux](https://www.reddit.com/r/linux/comments/56r4xj/why_are_low_memory_conditions_handled_so_badly/) - discussion with 480+ posts. Also look at "Why are low memory conditions handled so badly?" [r/linux](https://www.reddit.com/r/linux/comments/56r4xj/why_are_low_memory_conditions_handled_so_badly/) - discussion with 480+ posts.