[PVE-User] Kernel Memory Leak on PVE6?

[Fabrizio Cuseo]

Are you sure that the memory is used by ZFS cache ? 

Regards, Fabrizio

----- Il 20-set-19, alle 14:31, Chris Hofstaedtler | Deduktiva chris.hofstaedtler at deduktiva.com ha scritto:

> Hi,
> 
> I'm seeing a very interesting problem on PVE6: one of our machines
> appears to leak kernel memory over time, up to the point where only
> a reboot helps. Shutting down all KVM VMs does not release this
> memory.
> 
> I'll attach some information below, because I just couldn't figure
> out what this memory is used for. Once before shutting down the VMs,
> and once after. I had to reboot the PVE host now, but I guess
> in a few days it will be at least noticable again.
> 
> This machine has the same (except CPU) hardware as the box next to
> it; however this one was freshly installed with PVE6, the other one
> is an upgrade from PVE5 and doesn't exhibit this problem. It's quite
> puzzling because I haven't seen this symptom at all at all the
> customer installations.
> 
> Here are some graphs showing the memory consumption over time:
>  http://zeha.at/~ch/T/20190920-pve6_meminfo_0.png
>  http://zeha.at/~ch/T/20190920-pve6_meminfo_1.png
> 
> Looking forward to any debug help, suggestions, ...
> 
> Chris
-- 
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Fabrizio Cuseo - mailto:f.cuseo at panservice.it
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