1:30 p.m.
On Thu, Dec 10, 2015 at 10:41 AM, Michal Skrivanek <mskrivan(a)redhat.com>
wrote:
On 10 Dec 2015, at 00:11, Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Wed, Dec 9, 2015 at 10:21 PM, Sandro Bonazzola wrote:
>
>
> No idea. If it's libvirt issue, can you test
> http://cbs.centos.org/koji/buildinfo?buildID=4726 ? it's from centos
> virt sig, introduced for Xen but should work on kvm as well. or the 7.2
> libvirt from http://mirror.centos.org/centos/7/cr/x86_64/Packages/.
>
>
>
Then I reboot my HV, exit from maintenance, connect to engine and start VM.
VM situation
$ free
total used free shared buff/cache
available
Mem: 8172900 147356 7875692 8480 149852
7847248
Swap: 839676 0 839676
I set memory from 8192Mb to 10240Mb
I get the same window I got with previous libvirt version.
I select OK (I don't select "Apply later" checkbox)
Inside guest there is no changed memory, but I can see this in
/var/log/messages:
could it be perhaps the guest has troubles recognizing hotplug? Is it also
a CentOS 7.1 guest?
Yes, CentOS 7.1 updated up to a couple of days ago.
Dec 9 23:56:18 racclient1 kernel: init_memory_mapping: [mem
0x240000000-0x2bfffffff]
ANd output of dmesg contains:
[ 219.363640] ACPI: \_SB_.MP00: ACPI_NOTIFY_DEVICE_CHECK event
[ 219.364248] init_memory_mapping: [mem 0x240000000-0x2bfffffff]
[ 219.364253] [mem 0x240000000-0x2bfffffff] page 2M
[ 219.366773] [ffffea0009000000-ffffea00091fffff] PMD ->
[ffff8800b7e00000-ffff8800b7ffffff] on node 0
[ 219.368433] [ffffea0009200000-ffffea00093fffff] PMD ->
[ffff880231400000-ffff8802315fffff] on node 0
[ 219.369838] [ffffea0009400000-ffffea00095fffff] PMD ->
[ffff880233600000-ffff8802337fffff] on node 0
[ 219.371226] [ffffea0009600000-ffffea00097fffff] PMD ->
[ffff880233000000-ffff8802331fffff] on node 0
[ 219.372790] [ffffea0009800000-ffffea00099fffff] PMD ->
[ffff880232c00000-ffff880232dfffff] on node 0
[ 219.374185] [ffffea0009a00000-ffffea0009bfffff] PMD ->
[ffff880232200000-ffff8802323fffff] on node 0
[ 219.377349] [ffffea0009c00000-ffffea0009ffffff] PMD ->
[ffff8800b7400000-ffff8800b77fffff] on node 0
[ 219.378716] [ffffea000a000000-ffffea000a1fffff] PMD ->
[ffff8800b7000000-ffff8800b71fffff] on node 0
[ 219.380115] [ffffea000a200000-ffffea000a3fffff] PMD ->
[ffff880230c00000-ffff880230dfffff] on node 0
[ 219.388147] [ffffea000a400000-ffffea000abfffff] PMD ->
[ffff880227c00000-ffff8802283fffff] on node 0
[ 219.389687] [ffffea000ac00000-ffffea000adfffff] PMD ->
[ffff8800b7200000-ffff8800b73fffff] on node 0
but “free” sstill shows the same value as before hotplug?
Yes, output of "free" command show the same amount of memory
I then shutdown the VM and power on it again and I get the changed memory:
well, yeah, but that doesn’t count since you’ve shut it down, so the next
run is initialized with 10GB
It was only to verify that after shutdown/power on the changed setting
would have been applied to the VM
$ free
total used free shared buff/cache
available
Mem: 10237276 167872 9919656 8480 149748
9891280
Swap: 839676 0 839676
BTW: When I press ok in the gui for memory increase I get these events in
webadmin:
Dec 9, 2015 11:56:22 PM
VM racclient1 c71_Disk1_newtemplate disk was updated by admin@internal.
hm..doesn’t sound right. Did the confirmation window show any more fields
as changed other than memory?
The window I got when I increased the amount of memory was the same as in a
previous test where I selected "Cancel", before libvirt update; see
https://drive.google.com/file/d/0BwoPbcrMv8mvbUw2VnpCMTNNQlU/view?usp=sha...
And I also commented about misleading information inside it: I didn't
clearly understand what would have been changed and what not, because I see
memory information in both parts.....
It doesn't seem as expected, does it?
I think we’re almost there. Just need to figure out what happened in the
guest. I would suspect a problem there
Thanks,
michal
Gianluca
The gui events have the same timestamp of the moment when I pressed ok.
After 2-3 minutes I did shutdown and power on of the VM and I only got the
down/up events...
I'm available to make further test you need.
GIanluca