Hi List,
I'm trying to work out the balloon driver on CentOS6 HVM but it seems to be not working with default 2.6.32 or newer 3.4 kernel.
Does balloon driver work on HVM linux guests with Linux Kernel 3.4 from centos repo ?
PV is fine and is able to balloon.
My host is Xen 4.1.2 with dom0 as 3.4.46-8.el6.centos.alt.x86_64 My guest is CentOS6.4 with kernel 3.4.46-8.el6.centos.alt.x86_64
Please have a look at below guest logs, [root@hvmc6 ~]# uname -a Linux hvmc6 3.4.50-8.el6.centos.alt.x86_64 #1 SMP Fri Jun 21 03:14:22 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux [root@hvmc6 ~]# xenstore-ls memory initial-reservation = "1193984" initial-target = "1048576" static-max = "16777216" target = "1048576" dynamic-min = "1048576" dynamic-max = "1048576" memory-offset = "-258100" [root@hvmc6 ~]# dmesg | grep -i balloon xen/balloon: Initialising balloon driver. xen-balloon: Initialising balloon driver. [root@hvmc6 ~]# free -m total used free shared buffers cached Mem: 463 221 241 0 24 13 -/+ buffers/cache: 184 278 Swap: 9987 7 9980
When I try to set it manually from host, I get # xl mem-set 229 2049 xc: error: do_memory_op: WARNING: op=16 not converted to safe ioctls: Internal error
Anyone has made CentOS6 PVHVM work with ballooning on Xen ?
Thanks. Rushikesh