[PVE-User] OOM Killer problem

[Michael Rasmussen]

Latest pve kernel has a fix for a serious oom killer bug. I would try upgrading your kernel before anything else.

On February 4, 2017 3:16:05 PM GMT+01:00, Michele Bonera <michele at bonera.biz> wrote:
>On 04/02/2017 12:35, Alwin Antreich wrote:
>
>> Hi Michele,
>>
>> On 02/04/2017 10:44 AM, Michele Bonera wrote:
>>> Hi.
>>>
>>> I have an issue with OOM Killer (Proxmox 4.4-5 - Kernel
>4.4.35-1-pve) on
>>> my infrastructure: even if there is a lot of free memory (15GB used
>over
>>> 32GB available), OOM Killer is still killing my VM processes.
>>
>> Are you over committing your machines?
>
>Not at all: the total amount of RAM assigned to the VMs running on this
>
>node is 12GB (and the host has 32GB).
>
>> Another consideration could be NUMA, if one node runs out of memory
>the
>> kernel might also kill processes.
>
>This is plausible. I'll do some checks... Thanks for the hint.
>
>>> This morning I had 3 over 6 VM powered down because OOM Killer
>decided
>>> to kill the related processes even if there were a lot of free
>memory.
>>>
>>>       total       used       free     shared    buffers     cached
>>> Mem:  32725572   32286280     439292     196428    3772084  
>18648708
>>> -/+:   9865488   22860084
>>> Swap:  1499124      33736    1465388
>>
>> It could also be possible that your swap space can't be utilized
>> properly due to your workload.
>
>I exclude this: the cpu utilization rarely exceed 20%
>
>Bye
>-- 
>Michele Bonera
>www.zipoware.com
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-- 
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