Hi, Yes, I've got quite the same issues with RHEL5 guests on oVirt 4.2.3 : random guest freeze and oVirt host crash while rebooting a guest ! It seems to be a kernel bug introduce with 7.5 : https://bugzilla.redhat.com/show_bug.cgi?id=1584775 https://access.redhat.com/solutions/3496461 While waiting for this kernel patch, I use an older kernel version on the oVirt host : 3.10.0-693.21.1.el7 works fine with oVirt 4.2.3 and RHEL5 guest. Regards, Arnaud Lauriou On 06/27/2018 08:59 AM, Eduardo Mayoral wrote: > > Hi, > >     I am experiencing that my RHEL5 guests frequently "hang" when > migrating host. Console is blank, CPU after migration is 100% and as > far as oVirt is concerned, the VM is OK. > >     oVirt is 4.2.3.8-1.el7, on CentOS 7. Hosts are CentOS 7 as well. > Cluster is in "Intel Westmere family" CPU type. > >     Guest is RHEL5, fully patched, kernel 4.2.3.8-1.el7 with > ovirt-guest-agent installed from EPEL. > >     I do not see anything out of place in the ovirt-engine and vdsm > logs, and the guest logs are simply not there, the stop right before > the migration,as if the machine had "frozen". > >     Powering the VM off and starting it starts the VM correctly. This > does not happen 100% of the time. If I try to migrate the VM when it > is freshly started the migration is faster (maybe 5 seconds), and the > guest OS does not hang. > >     Anybody else experiencing something similar? Maybe something > (timeouts?) that I should tune on the guest OS for RHEL5? > >     Thanks! > > -- > > Eduardo Mayoral. > > > > > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/42D5IQBRX7A...