Applied kernelcare to two OpenVZ nodes yesterday.
One of them seems ok but the other one had problems overnight. Really high swap and load even though there was still plenty of unused memory. Individual containers had all their vswap used. Not all containers are using vswap. I rebooted the containers that have vswap and that seemed to correct the swap/load. It's too much of a coincidence that this happened the evening I updated the kernel. Nothing else was done and this server has been running continuously for months
The other node is still ok. Hopefully restarting the containers corrected it and I won't have to roll back the kernel.
Both nodes are Supermicro with Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz and 16GB RAM
Both running kcare 042stab127.2
Base kernel is different though
The one still working is 2.6.32-042stab113.21
The one that had a problem is 2.6.32-042stab108.8