Completely disable oom killer

I'm having some intermittent issues that appear to be related to the oomkiller purging some child processes, but I can't see why.

Is there a convenient way that I can suppress all oomkiller activity through sysctl?

I've found some instructions that say these should work, but they do not exist for me.

sysctl -w memory.oom_control=1

sysctl -w vm.oom-kill=0

I have also seen these two being suggested, but the oom killer carries right on.

sysctl vm.overcommit_memory=2

sysctl vm.overcommit_kbytes=0

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

bumped to the homepage by Community♦ 4 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment |

I'm having some intermittent issues that appear to be related to the oomkiller purging some child processes, but I can't see why.

Is there a convenient way that I can suppress all oomkiller activity through sysctl?

I've found some instructions that say these should work, but they do not exist for me.

sysctl -w memory.oom_control=1

sysctl -w vm.oom-kill=0

I have also seen these two being suggested, but the oom killer carries right on.

sysctl vm.overcommit_memory=2

sysctl vm.overcommit_kbytes=0

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

bumped to the homepage by Community♦ 4 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment |

I'm having some intermittent issues that appear to be related to the oomkiller purging some child processes, but I can't see why.

Is there a convenient way that I can suppress all oomkiller activity through sysctl?

I've found some instructions that say these should work, but they do not exist for me.

sysctl -w memory.oom_control=1

sysctl -w vm.oom-kill=0

I have also seen these two being suggested, but the oom killer carries right on.

sysctl vm.overcommit_memory=2

sysctl vm.overcommit_kbytes=0

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

I'm having some intermittent issues that appear to be related to the oomkiller purging some child processes, but I can't see why.

Is there a convenient way that I can suppress all oomkiller activity through sysctl?

I've found some instructions that say these should work, but they do not exist for me.

sysctl -w memory.oom_control=1

sysctl -w vm.oom-kill=0

I have also seen these two being suggested, but the oom killer carries right on.

sysctl vm.overcommit_memory=2

sysctl vm.overcommit_kbytes=0

out-of-memory

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

edited Mar 20 '18 at 1:49

thrig

25.2k23257

edited Mar 20 '18 at 1:49

thrig

25.2k23257

edited Mar 20 '18 at 1:49

thrig

25.2k23257

asked Mar 19 '18 at 20:39

Brando___

133

asked Mar 19 '18 at 20:39

Brando___

133

asked Mar 19 '18 at 20:39

Brando___

133

bumped to the homepage by Community♦ 4 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

bumped to the homepage by Community♦ 4 hours ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment |

1 Answer
1

active

oldest

votes

You could use /proc/sys/vm/overcommit_memory (see proc(5)), e.g.

echo 0 > /proc/sys/vm/overcommit_memory

as root to disable it. See also the kernel's Documentation/vm/overcommit-accounting

^{(If you are running an old kernel, consider upgrading it)}

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

add a comment |

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1 Answer
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You could use /proc/sys/vm/overcommit_memory (see proc(5)), e.g.

echo 0 > /proc/sys/vm/overcommit_memory

as root to disable it. See also the kernel's Documentation/vm/overcommit-accounting

^{(If you are running an old kernel, consider upgrading it)}

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

add a comment |

You could use /proc/sys/vm/overcommit_memory (see proc(5)), e.g.

echo 0 > /proc/sys/vm/overcommit_memory

as root to disable it. See also the kernel's Documentation/vm/overcommit-accounting

^{(If you are running an old kernel, consider upgrading it)}

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

add a comment |

You could use /proc/sys/vm/overcommit_memory (see proc(5)), e.g.

echo 0 > /proc/sys/vm/overcommit_memory

as root to disable it. See also the kernel's Documentation/vm/overcommit-accounting

^{(If you are running an old kernel, consider upgrading it)}

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

You could use /proc/sys/vm/overcommit_memory (see proc(5)), e.g.

echo 0 > /proc/sys/vm/overcommit_memory

as root to disable it. See also the kernel's Documentation/vm/overcommit-accounting

^{(If you are running an old kernel, consider upgrading it)}

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

answered Mar 20 '18 at 5:43

Basile Starynkevitch

8,1312041

add a comment |

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