On 03/12/2018 01:50 PM, Yaniv Kaul wrote: > > > On Mon, Mar 12, 2018 at 1:40 PM, Andrei Verovski <[email protected] > <mailto:[email protected]>> wrote: > > Hi ! > > > I have stubborn VM (Ubuntu 16.04 LTS) which randomly freezes about > each 2 - 3 weeks at weekends (when load is close to zero). > No updates or kernel upgrades help. > Freeze is not detected by oVirt watchdog and VM is not > automatically restarted. > > Since it happens only on weekends, I suspect some weekly cron job > may cause this. > Ubuntu 16.04 LTS is installed on qcow2 disk image (thin provision). > is it possible that fstrim (which discards / trims unused blocks) > is a source of this problem ? > > > Are you using virtio-blk (which doesn't support it) or virtio-SCSI > (which does)? > Also, does the storage support trimming? Not all do.
I'm using virtio-SCSI, Ubuntu thin provision disk formatted as ext4 boot + ext4 root + swap. Disk image on ext4 RAID 1. > Y. > > > > Thanks in advance > Andrei > > _______________________________________________ > Users mailing list > [email protected] <mailto:[email protected]> > http://lists.ovirt.org/mailman/listinfo/users > <http://lists.ovirt.org/mailman/listinfo/users> > >
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