Hi Daniel, I am using libvirt version 0.8.0. I created a domain 'srikanth_vm' using 'lxc' hypervisor. I am able to start the Domain. But, I am not able to get the memory stats for that Domain. If I issue 'dommemstat Srikanth_vm' in the virsh console, the following error is throwing: error: Failed to get memory statistics for domain srikanth_vm error: this function is not supported by the hypervisor: virDomainMemoryStats

Can you please let me know, how can I get memory stats for a particular domain in libvirt?

Thanks for the reply Daniel. Virsh dominfo dommand showing following results: Id: 32473 Name: vm1 UUID: f13bc513-15f2-1dd1-74f6-18c47931ece9 OS Type: exe State: running CPU(s): 1 Max memory: 5000000 kB Used memory: 5000000 kB Autostart: disable Though whatever services running on the domain, every time used memory

is showing as 5000000 kB. Is that result is correct?

Daniel, My requirement is to get how much memory is free in the guest domain. Can you please let me know, how can I do that?

And also, as you said it's quite easy to implement dommemstats for lxc driver, is there any possibility to implement that?

Regards, Srikanth. -----Original Message----- From: Daniel P. Berrange [mailto:berrange@redhat.com] Sent: Wednesday, April 28, 2010 4:46 PM To: Kumar L Srikanth-B22348 Cc: libvir-list(a)redhat.com Subject: Re: 'dommemstat' is not working for LXC hypervisor. On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote: > Thanks for the reply Daniel. > Virsh dominfo dommand showing following results: > > Id:             32473 > Name:           vm1 > UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9 > OS Type:        exe > State:          running > CPU(s):         1 > Max memory:     5000000 kB > Used memory:    5000000 kB > Autostart:      disable > > > Though whatever services running on the domain, every time used > memory > is showing as 5000000 kB. Is that result is correct? The 'Max memory' 5000000 KB is the hard limit that is allocated to the container. I thought that the 'used memory' field would be lower, but its possible we don't have the actual stats for used memory so just set both the same. I'd have to research the code again to answer for sure... Daniel -- |: Red Hat, Engineering, London    -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org        -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list

Thanks ozaki. But can you please elaborate the process of getting memory.stat of a particular domain? I mounted cgroup filesystem prior to start libvirtd service using the below command: mount -t cgroup cgroup /cgroup Then started libvirtd service. Then started the domain. Here, can you let me know the process of viewing memory stats of that particular domain?

By the way, in the /cgroup directory lot of files are created. In those, which one can be memory stats?

Regards, Srikanth. -----Original Message----- From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] Sent: Thursday, April 29, 2010 5:27 PM To: Kumar L Srikanth-B22348 Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. On Wed, Apr 28, 2010 at 8:19 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: > Daniel, > My requirement is to get how much memory is free in the guest domain. > Can you please let me know, how can I do that? Do you enable cgroup memory subsystem? If so, something wrong in lxc driver of 0.8.0. BTW, 'Used memory' includes both RSS and caches, so if you need total-RSS value, you should use dommemstat. > And also, as you said it's quite easy to implement dommemstats for > lxc driver, is there any possibility to implement that? We can get statistics of dommemstat easily through memory.stat of cgroup.memory subsystem except statistics of page faults.  ozaki-r > > Regards, > Srikanth. > > -----Original Message----- > From: Daniel P. Berrange [mailto:berrange@redhat.com] > Sent: Wednesday, April 28, 2010 4:46 PM > To: Kumar L Srikanth-B22348 > Cc: libvir-list(a)redhat.com > Subject: Re: 'dommemstat' is not working for LXC hypervisor. > > On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote: >> Thanks for the reply Daniel. >> Virsh dominfo dommand showing following results: >> >> Id:             32473 >> Name:           vm1 >> UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9 >> OS Type:        exe >> State:          running >> CPU(s):         1 >> Max memory:     5000000 kB >> Used memory:    5000000 kB >> Autostart:      disable >> >> >> Though whatever services running on the domain, every time used >> memory > >> is showing as 5000000 kB. Is that result is correct? > > The 'Max memory' 5000000 KB is the hard limit that is allocated to > the container. I thought that the 'used memory' field would be lower, > but its possible we don't have the actual stats for used memory so > just set both the same. I'd have to research the code again to answer for sure... > > Daniel > -- > |: Red Hat, Engineering, London    -o- > http://people.redhat.com/berrange/ :| > |: http://libvirt.org -o- http://virt-manager.org -o- > http://deltacloud.org :| > |: http://autobuild.org        -o- > http://search.cpan.org/~danberr/ :| > |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 > |7D3B > 9505 :| > > > -- > libvir-list mailing list > libvir-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvir-list >

Now it's showing Used Memory as 0. I don't know whether it's correct or not. I wrote a small script in the domain to check the used memory, which will run continuously in the infinite loop. dominfo 'domainname' is showing Used Memory as 0. Is this right way to check the Used Memory of that domain?

Regards, Srikanth. -----Original Message----- From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] Sent: Thursday, April 29, 2010 5:50 PM To: Kumar L Srikanth-B22348 Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. On Thu, Apr 29, 2010 at 9:14 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: > Thanks ozaki. > But can you please elaborate the process of getting memory.stat of a particular domain? > I mounted cgroup filesystem prior to start libvirtd service using the below command: > mount -t cgroup cgroup /cgroup > > Then started libvirtd service. > Then started the domain. > > Here, can you let me know the process of viewing memory stats of that particular domain? Could you check output of dominfo again. Cannot you get proper 'Used memory'? > By the way, in the /cgroup directory lot of files are created. In those, which one can be memory stats? /cgroup/memory.stat is.  ozaki-r > > Regards, > Srikanth. > > -----Original Message----- > From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] > Sent: Thursday, April 29, 2010 5:27 PM > To: Kumar L Srikanth-B22348 > Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI > Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. > > On Wed, Apr 28, 2010 at 8:19 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >> Daniel, >> My requirement is to get how much memory is free in the guest domain. >> Can you please let me know, how can I do that? > > Do you enable cgroup memory subsystem? If so, something wrong in lxc driver of 0.8.0. > > BTW, 'Used memory' includes both RSS and caches, so if you need total-RSS value, you should use dommemstat. > >> And also, as you said it's quite easy to implement dommemstats for >> lxc driver, is there any possibility to implement that? > > We can get statistics of dommemstat easily through memory.stat of cgroup.memory subsystem except statistics of page faults. > >  ozaki-r > >> >> Regards, >> Srikanth. >> >> -----Original Message----- >> From: Daniel P. Berrange [mailto:berrange@redhat.com] >> Sent: Wednesday, April 28, 2010 4:46 PM >> To: Kumar L Srikanth-B22348 >> Cc: libvir-list(a)redhat.com >> Subject: Re: 'dommemstat' is not working for LXC hypervisor. >> >> On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote: >>> Thanks for the reply Daniel. >>> Virsh dominfo dommand showing following results: >>> >>> Id:             32473 >>> Name:           vm1 >>> UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9 >>> OS Type:        exe >>> State:          running >>> CPU(s):         1 >>> Max memory:     5000000 kB >>> Used memory:    5000000 kB >>> Autostart:      disable >>> >>> >>> Though whatever services running on the domain, every time used >>> memory >> >>> is showing as 5000000 kB. Is that result is correct? >> >> The 'Max memory' 5000000 KB is the hard limit that is allocated to >> the container. I thought that the 'used memory' field would be >> lower, but its possible we don't have the actual stats for used >> memory so just set both the same. I'd have to research the code again to answer for sure... >> >> Daniel >> -- >> |: Red Hat, Engineering, London    -o- >> http://people.redhat.com/berrange/ :| >> |: http://libvirt.org -o- http://virt-manager.org -o- >> http://deltacloud.org :| >> |: http://autobuild.org        -o- >> http://search.cpan.org/~danberr/ :| >> |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 >> |7D3B >> 9505 :| >> >> >> -- >> libvir-list mailing list >> libvir-list(a)redhat.com >> https://www.redhat.com/mailman/listinfo/libvir-list >> > >

On Thu, Apr 29, 2010 at 9:54 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: > Thanks Ozaki. > Please let me know the result, once you checked with 0.8.0. I may understand what happen. Could you check 'tree -d /cgroup' where running your domain and could you find that a directory named your domain has another directory named some numeric number? If so, could you try cgroup without ns subsystem like mount -t cgroup -o cpu,cpuacct,cpuset,memory,devices cgroup /cgroup or something. I guess running lxc with ns subsystem of cgroup has still problems.

 ozaki-r > > Regards, > Srikanth. > > -----Original Message----- > From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] > Sent: Thursday, April 29, 2010 6:14 PM > To: Kumar L Srikanth-B22348 > Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI > Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. > > On Thu, Apr 29, 2010 at 9:32 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >> Now it's showing Used Memory as 0. I don't know whether it's correct or not. >> I wrote a small script in the domain to check the used memory, which will run continuously in the infinite loop. >> dominfo 'domainname' is showing Used Memory as 0. >> Is this right way to check the Used Memory of that domain? > > dominfo should be...but something wrong. > > In my machine, dominfo shows like: > > # virsh -c lxc:/// dominfo 31105 > Id:             31105 > Name:           cl_lxc_test > UUID:           fd7b21d9-6cbb-17a8-53dd-233f0aed4b4a > OS Type:        exe > State:          running > CPU(s):         1 > CPU time:       3.0s > Max memory:     131072 kB > Used memory:    23672 kB > Autostart:      disable > > However, the version of libvirt is not 0.8.0. So I try to check what changed by recent updates. > > Thanks, >  ozaki-r > > >> >> Regards, >> Srikanth. >> >> -----Original Message----- >> From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] >> Sent: Thursday, April 29, 2010 5:50 PM >> To: Kumar L Srikanth-B22348 >> Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI >> Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. >> >> On Thu, Apr 29, 2010 at 9:14 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >>> Thanks ozaki. >>> But can you please elaborate the process of getting memory.stat of a particular domain? >>> I mounted cgroup filesystem prior to start libvirtd service using the below command: >>> mount -t cgroup cgroup /cgroup >>> >>> Then started libvirtd service. >>> Then started the domain. >>> >>> Here, can you let me know the process of viewing memory stats of that particular domain? >> >> Could you check output of dominfo again. Cannot you get proper 'Used memory'? >> >>> By the way, in the /cgroup directory lot of files are created. In those, which one can be memory stats? >> >> /cgroup/memory.stat is. >> >>  ozaki-r >> >>> >>> Regards, >>> Srikanth. >>> >>> -----Original Message----- >>> From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] >>> Sent: Thursday, April 29, 2010 5:27 PM >>> To: Kumar L Srikanth-B22348 >>> Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI >>> Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. >>> >>> On Wed, Apr 28, 2010 at 8:19 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >>>> Daniel, >>>> My requirement is to get how much memory is free in the guest domain. >>>> Can you please let me know, how can I do that? >>> >>> Do you enable cgroup memory subsystem? If so, something wrong in lxc driver of 0.8.0. >>> >>> BTW, 'Used memory' includes both RSS and caches, so if you need total-RSS value, you should use dommemstat. >>> >>>> And also, as you said it's quite easy to implement dommemstats for >>>> lxc driver, is there any possibility to implement that? >>> >>> We can get statistics of dommemstat easily through memory.stat of cgroup.memory subsystem except statistics of page faults. >>> >>>  ozaki-r >>> >>>> >>>> Regards, >>>> Srikanth. >>>> >>>> -----Original Message----- >>>> From: Daniel P. Berrange [mailto:berrange@redhat.com] >>>> Sent: Wednesday, April 28, 2010 4:46 PM >>>> To: Kumar L Srikanth-B22348 >>>> Cc: libvir-list(a)redhat.com >>>> Subject: Re: 'dommemstat' is not working for LXC hypervisor. >>>> >>>> On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote: >>>>> Thanks for the reply Daniel. >>>>> Virsh dominfo dommand showing following results: >>>>> >>>>> Id:             32473 >>>>> Name:           vm1 >>>>> UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9 >>>>> OS Type:        exe >>>>> State:          running >>>>> CPU(s):         1 >>>>> Max memory:     5000000 kB >>>>> Used memory:    5000000 kB >>>>> Autostart:      disable >>>>> >>>>> >>>>> Though whatever services running on the domain, every time used >>>>> memory >>>> >>>>> is showing as 5000000 kB. Is that result is correct? >>>> >>>> The 'Max memory' 5000000 KB is the hard limit that is allocated to >>>> the container. I thought that the 'used memory' field would be >>>> lower, but its possible we don't have the actual stats for used >>>> memory so just set both the same. I'd have to research the code again to answer for sure... >>>> >>>> Daniel >>>> -- >>>> |: Red Hat, Engineering, London    -o- >>>> http://people.redhat.com/berrange/ :| >>>> |: http://libvirt.org -o- http://virt-manager.org -o- >>>> http://deltacloud.org :| >>>> |: http://autobuild.org        -o- >>>> http://search.cpan.org/~danberr/ :| >>>> |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 >>>> |7D3B >>>> 9505 :| >>>> >>>> >>>> -- >>>> libvir-list mailing list >>>> libvir-list(a)redhat.com >>>> https://www.redhat.com/mailman/listinfo/libvir-list >>>> >>> >>> >> >> > >

Thanks for your time Ozaki. But, I am new to libvirt. Can you please let me know how can we enable memory.use_hierarchy for every creation of libvirt/lxc/<domain>/?

Regards, Srikanth. -----Original Message----- From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] Sent: Thursday, April 29, 2010 9:51 PM To: Kumar L Srikanth-B22348 Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. On Thu, Apr 29, 2010 at 10:23 PM, Ryota Ozaki <ozaki.ryota(a)gmail.com&gt; wrote: > On Thu, Apr 29, 2010 at 9:54 PM, Kumar L Srikanth-B22348 > <B22348(a)freescale.com&gt; wrote: >> Thanks Ozaki. >> Please let me know the result, once you checked with 0.8.0. > > I may understand what happen. > > Could you check 'tree -d /cgroup' where running your domain and could > you find that a directory named your domain has another directory > named some numeric number? > > If so, could you try cgroup without ns subsystem like mount -t cgroup > -o cpu,cpuacct,cpuset,memory,devices cgroup /cgroup or something. > > I guess running lxc with ns subsystem of cgroup has still problems. OK, I've confirmed my expectation is correct. With 0.8.0, I can get proper used memory value without ns subsystem and cannot with ns enabled. The reason why this happens is as follows: ns creates a subgroup on every fork and put any child processes into them. So all processes in a container place under sub directories of libvirt/lxc/<domain>/. OTOH, cgroup.memory subsystem accounts memory statistics only its group by default, i.e., it isn't aware of sub groups (directories). On issuing dominfo, lxc driver just gets memory statistics of libvirt/lxc/<domain>/ that has no process, eventually we always get 0 as used memory. I think one solution that addresses this problem is to enable memory.use_hierarchy for every creation of libvirt/lxc/<domain>/. The option allows to account memory statistics with hierarchal manner and we can get total memory consumptions at the top of groups, i.e., libvirt/lxc/<domain>/. Thanks,  ozaki-r > >  ozaki-r > > >> >> Regards, >> Srikanth. >> >> -----Original Message----- >> From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] >> Sent: Thursday, April 29, 2010 6:14 PM >> To: Kumar L Srikanth-B22348 >> Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI >> Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. >> >> On Thu, Apr 29, 2010 at 9:32 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >>> Now it's showing Used Memory as 0. I don't know whether it's correct or not. >>> I wrote a small script in the domain to check the used memory, which will run continuously in the infinite loop. >>> dominfo 'domainname' is showing Used Memory as 0. >>> Is this right way to check the Used Memory of that domain? >> >> dominfo should be...but something wrong. >> >> In my machine, dominfo shows like: >> >> # virsh -c lxc:/// dominfo 31105 >> Id:             31105 >> Name:           cl_lxc_test >> UUID:           fd7b21d9-6cbb-17a8-53dd-233f0aed4b4a >> OS Type:        exe >> State:          running >> CPU(s):         1 >> CPU time:       3.0s >> Max memory:     131072 kB >> Used memory:    23672 kB >> Autostart:      disable >> >> However, the version of libvirt is not 0.8.0. So I try to check what changed by recent updates. >> >> Thanks, >>  ozaki-r >> >> >>> >>> Regards, >>> Srikanth. >>> >>> -----Original Message----- >>> From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] >>> Sent: Thursday, April 29, 2010 5:50 PM >>> To: Kumar L Srikanth-B22348 >>> Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI >>> Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. >>> >>> On Thu, Apr 29, 2010 at 9:14 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >>>> Thanks ozaki. >>>> But can you please elaborate the process of getting memory.stat of a particular domain? >>>> I mounted cgroup filesystem prior to start libvirtd service using the below command: >>>> mount -t cgroup cgroup /cgroup >>>> >>>> Then started libvirtd service. >>>> Then started the domain. >>>> >>>> Here, can you let me know the process of viewing memory stats of that particular domain? >>> >>> Could you check output of dominfo again. Cannot you get proper 'Used memory'? >>> >>>> By the way, in the /cgroup directory lot of files are created. In those, which one can be memory stats? >>> >>> /cgroup/memory.stat is. >>> >>>  ozaki-r >>> >>>> >>>> Regards, >>>> Srikanth. >>>> >>>> -----Original Message----- >>>> From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] >>>> Sent: Thursday, April 29, 2010 5:27 PM >>>> To: Kumar L Srikanth-B22348 >>>> Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI >>>> Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. >>>> >>>> On Wed, Apr 28, 2010 at 8:19 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: >>>>> Daniel, >>>>> My requirement is to get how much memory is free in the guest domain. >>>>> Can you please let me know, how can I do that? >>>> >>>> Do you enable cgroup memory subsystem? If so, something wrong in lxc driver of 0.8.0. >>>> >>>> BTW, 'Used memory' includes both RSS and caches, so if you need total-RSS value, you should use dommemstat. >>>> >>>>> And also, as you said it's quite easy to implement dommemstats for >>>>> lxc driver, is there any possibility to implement that? >>>> >>>> We can get statistics of dommemstat easily through memory.stat of cgroup.memory subsystem except statistics of page faults. >>>> >>>>  ozaki-r >>>> >>>>> >>>>> Regards, >>>>> Srikanth. >>>>> >>>>> -----Original Message----- >>>>> From: Daniel P. Berrange [mailto:berrange@redhat.com] >>>>> Sent: Wednesday, April 28, 2010 4:46 PM >>>>> To: Kumar L Srikanth-B22348 >>>>> Cc: libvir-list(a)redhat.com >>>>> Subject: Re: 'dommemstat' is not working for LXC hypervisor. >>>>> >>>>> On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote: >>>>>> Thanks for the reply Daniel. >>>>>> Virsh dominfo dommand showing following results: >>>>>> >>>>>> Id:             32473 >>>>>> Name:           vm1 >>>>>> UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9 >>>>>> OS Type:        exe >>>>>> State:          running >>>>>> CPU(s):         1 >>>>>> Max memory:     5000000 kB >>>>>> Used memory:    5000000 kB >>>>>> Autostart:      disable >>>>>> >>>>>> >>>>>> Though whatever services running on the domain, every time used >>>>>> memory >>>>> >>>>>> is showing as 5000000 kB. Is that result is correct? >>>>> >>>>> The 'Max memory' 5000000 KB is the hard limit that is allocated to >>>>> the container. I thought that the 'used memory' field would be >>>>> lower, but its possible we don't have the actual stats for used >>>>> memory so just set both the same. I'd have to research the code again to answer for sure... >>>>> >>>>> Daniel >>>>> -- >>>>> |: Red Hat, Engineering, London    -o- >>>>> http://people.redhat.com/berrange/ :| >>>>> |: http://libvirt.org -o- http://virt-manager.org -o- >>>>> http://deltacloud.org :| >>>>> |: http://autobuild.org        -o- >>>>> http://search.cpan.org/~danberr/ :| >>>>> |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 >>>>> |7D3B >>>>> 9505 :| >>>>> >>>>> >>>>> -- >>>>> libvir-list mailing list >>>>> libvir-list(a)redhat.com >>>>> https://www.redhat.com/mailman/listinfo/libvir-list >>>>> >>>> >>>> >>> >>> >> >> >