On Thu, Feb 2, 2017 at 10:48 AM, Nir Soffer <nsoffer@redhat.com> wrote:
After about 7 rounds I get this in messages of the host where the VM is running:
Feb 1 23:31:39 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:39 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:44 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:45 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:45 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:47 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:50 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:50 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:56 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
Feb 1 23:31:57 ovmsrv06 kernel: dd: sending ioctl 80306d02 to a
partition! partition! partition! partition! partition! partition! partition! partition! partition! partition!
This is interesting, we have seen this messages before, but could never detect the flow causing them, are you sure you see this each time you extend your disk?
If you can reproduce this, please file a bug.
I got the same on 4.1.1 while testing on iSCSI so I opened a bugzilla now... let's see if we can find anything usefule https://bugzilla.redhat.com/show_bug.cgi?id=1438809 Gianluca