On Fri, 3 Jan 2014, Chris Elliott wrote: > Hi All > > Back in August there was a report of these errors popping up in dmesg, and as far as I can tell it’s still unresolved even in the > latest kernel. > > > System RAM resource [mem 0xc8000000-0xcfffffff] cannot be added > > xen_balloon: reserve_additional_memory: add_memory() failed: -17 > > > > On this example its running 3.10.20-11.el6.centos.alt.x86_64 > > > > To replicate this just disable Dom0 memory ballooning in /etc/xen/xend-config.sxp and these errors will over time completely fill > up dmesg. When you disable dom0 memory ballooning, do you also reboot passing dom0_mem=something to the Xen command line (for example dom0_mem=4G)? If you do so, do you still see those errors? > This is because the amount of memory within these two sys files is different: > > > > /sys/devices/system/xen_memory/xen_memory0/info/current_kb > > /sys/devices/system/xen_memory/xen_memory0/target_kb > > > > We can manually edit to work around the problem and stop the error but its not ideal, I would help with making a patch but don’t > really know where to start!