I'm running Virtualbox through vagrant. I'm running a provisioner which installs a bunch of packages through yum. The provisioner keeps halting, and when I look at VirtualBox, I see that the VM is paused. In the logs, there's an entry:
00:12:08.042247 Changing the VM state from 'SUSPENDING' to 'SUSPENDED'.
00:12:08.042839 Console: VM runtime error: fatal=false, errorID=BLKCACHE_IOERR message="The I/O cache encountered an error while updating data in medium "ahci-0-0" (rc=VERR_DISK_FULL). Make sure there is enough free space on the disk and that the disk is working properly. Operation can be resumed afterwards"
However, there is plenty of disk space available on the VM, according to df. I set up a watch -n 0.5 df -h (run df -h every half second), and there was never a shortage of space:
Every 0.5s: df -h
Tue Nov 10 23:52:30 2015
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 8.4G 2.3G 6.2G 27% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 8.4M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 497M 107M 391M 22% /boot
none 233G 152G 82G 65% /vagrant
Furthermore, if I unpause the VM in VirtualBox, things just keep going as normal -- that is, until/unless it pauses again. What could be the cause of this?
