Re: OOM-killer not being involked under memory pressure

[Pariksheet Nanda <pariksheet.nanda@protonmail.com>]

Hi Linux-Fan,
>>> I just checked my other server which has ZFS on root without encryption,
>>> and see that I did not enable swap at all on that machine. So I'll disable
>>> swap, thrash the RAM with `stress`, and then hopefully the OOM-killer works
>>> like it does on that machine.
>>
>> Yay! Indeed disabling swap allowed the OOM-killer to work.
>
> I am planning on using ZFS, too, so would you mind a follow-up question
> about your setup: Is your swap on a ZFS volume?

Yes, the swap was on the ZFS volume, from my following the ZFS on Linux guide linked earlier.


> I have heard there are bugs with Swap-on-ZFS which may cause lockups similar
> to what you describe:
>
> https://github.com/openzfs/zfs/issues/342
> https://github.com/openzfs/zfs/issues/7734

Thank you for the links!  I started reading the zfs-discuss mailing list and completely neglected the GitHub tracker.


>>> Pariksheet
>> Pariksheet
> Linux-Fan
Pariksheet