Yesterday I've decided to give centos xen a try and I get this messages also.
[root@fhpxen1 ~]# dmesg -c System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 device vif10.0 entered promiscuous mode ADDRCONF(NETDEV_UP): vif10.0: link is not ready device vif10.0-emu entered promiscuous mode virbr0: topology change detected, propagating virbr0: port 2(vif10.0-emu) entered forwarding state virbr0: port 2(vif10.0-emu) entered forwarding state System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added xen_balloon: reserve_additional_memory: add_memory() failed: -17 System RAM resource 48000000 - 4fffffff cannot be added
[root@fhpxen1 ~]# cat /sys/devices/system/xen_memory/xen_memory0/info/current_kb 1048568 [root@fhpxen1 ~]# cat /sys/devices/system/xen_memory/xen_memory0/target_kb 1048576 [root@fhpxen1 ~]#
[root@fhpxen1 ~]# xl info host : fhpxen1 release : 3.4.54-8.el6.centos.alt.x86_64 version : #1 SMP Tue Jul 23 17:29:30 UTC 2013 machine : x86_64 nr_cpus : 8 max_cpu_id : 7 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 3400 hw_caps : bfebfbff:2c100800:00000000:00007f40:77fafbff:00000000:00000021:00002fbb virt_caps : hvm hvm_directio total_memory : 32630 free_memory : 28071 sharing_freed_memory : 0 sharing_used_memory : 0 free_cpus : 0 xen_major : 4 xen_minor : 2 xen_extra : .2-23.el6 xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64 xen_scheduler : credit xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : unavailable xen_commandline : dom0_mem=1024M,max:1024M loglvl=all guest_loglvl=all cc_compiler : gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3) cc_compile_by : mockbuild cc_compile_domain : centos.org cc_compile_date : Thu Jul 18 13:42:23 UTC 2013 xend_config_format : 4
On Fri, Aug 2, 2013 at 12:10 PM, David Vrabel david.vrabel@citrix.comwrote:
On 01/08/13 19:28, Shaun Reitan wrote:
My /var/log/messages log is being flooded with kernel messages showing the following messages
Aug 1 11:22:52 host43 kernel: System RAM resource 48000000 - 4fffffff cannot be added Aug 1 11:22:52 host43 kernel: xen_balloon: reserve_additional_memory: add_memory() failed: –17
Doing a search I found a thread from xen-devel that talks a bit about it. I’m not sure if this is related to the same issue or if that issue was ever fixed. When I cat current_kb and target_kb the values don’t match, they are just barely off. I have not tried setting them to match yet.
http://marc.info/?t=135601508900004&r=1&w=3 http://marc.info/?t=135601508900004&r=1&w=3
[root@host ~]# cat /sys/devices/system/xen_memory/xen_memory0/info/current_kb 1048532 [root@host ~]# cat /sys/devices/system/xen_memory/xen_memory0/target_kb 1048576
This should be fixed in the latest version of the kernel packages. Which version are you using?
David _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt