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!
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