Still OOM problems with 4.9er kernels

[Gerhard Wiesinger]

Hello,

I'm having out of memory situations with my "low memory" VMs in KVM 
under Fedora (Kernel 4.7, 4.8 and also before). They started to get more 
and more sensitive to OOM. I recently found the following info:

https://marius.bloggt-in-braunschweig.de/2016/11/17/linuxkernel-4-74-8-und-der-oom-killer/
https://www.spinics.net/lists/linux-mm/msg113661.html

Therefore I tried the latest Fedora kernels: 4.9.0-0.rc6.git2.1.fc26.x86_64

But OOM situation is still very easy to reproduce:

1.) VM with 128-384MB under Fedora 25

2.) Having some processes run without any load (e.g. Apache)

3.) run an update with: dnf clean all; dnf update

4.) dnf python process get's killed


Please make the VM system working again in Kernel 4.9 and to use swap 
again correctly.

Thnx.

Ciao,

Gerhard