[PVE-User] Kernel Memory Leak on PVE6?

Chris Hofstaedtler | Deduktiva chris.hofstaedtler at deduktiva.com
Wed Oct 2 00:07:21 CEST 2019


* Chris Hofstaedtler | Deduktiva <chris.hofstaedtler at deduktiva.com> [190920 14:31]:
> 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.

[..]
> root at vn03:~# uname -a
> Linux vn03 5.0.21-1-pve #1 SMP PVE 5.0.21-1 (Tue, 20 Aug 2019 17:16:32 +0200) x86_64 GNU/Linux

I've upgraded both machines yesterday to:
Linux vn03 5.0.21-2-pve #1 SMP PVE 5.0.21-6 (Fri, 27 Sep 2019 17:17:02 +0200) x86_64 GNU/Linux

And they seem to be doing fine for now. Also, the slab size is a lot
smaller just after boot, compared to previous reboots.

I'm pretty sure pve-kernel-5.0.21-2-pve:amd64 5.0.21-3 still had the
problem.

-- 
Chris Hofstaedtler / Deduktiva GmbH (FN 418592 b, HG Wien)
www.deduktiva.com / +43 1 353 1707


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