[libvirt-users] LXC + passthrough mount and host filesystem-cache

Hello, I'm using libvirt to build/run LXC instances. My LXC instances use passthrough filesystem mounts. When I try to do large file systems operations (ex tar or rsync) the file systems cache on the host spikes and causes the OOM handler to run and kills processes in the LXC. Has anyone else seen this? Is there a way around this? At this point I'm resorting to running a cron job that dumps the filesystem cache every 5 minutes. The result is the filesystem cache on the host never grows too large and OOM never runs against LXC processes. The obvious down fall is that I'm killing my filesystem performance by duming the cache. I'm currently running libvirt 1.0.0 -- James R. Leu