> On 10 Dec 2015, at 11:30, Gianluca Cecchi <gianluca.cec...@gmail.com> wrote: > > On Thu, Dec 10, 2015 at 10:41 AM, Michal Skrivanek <mskri...@redhat.com> > wrote: > >> On 10 Dec 2015, at 00:11, Gianluca Cecchi <gianluca.cec...@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.
Can you try 7.2? I don’t remember exactly but it may be that in earlier guests it’s not automatic. Check some tips for onlining memory explicitly 5.2. How to online memory ------------ Even if the memory is hot-added, it is not at ready-to-use state. For using newly added memory, you have to "online" the memory block. For onlining, you have to write "online" to the memory block's state file as: % echo online > /sys/devices/system/memory/memoryXXX/state > > > >> >> 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=sharing > > 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….. I agree it’s confusing. Please do open a bug on that Thanks, michal > >> >> 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 > _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users