who performs a domU fsck?

[Mike <debian@xxxxxxxxxxxxxxxxxxxxx>]

My Linux domUs each have a block device, an LVM volume, mounted as /.  Where,
if anywhere, does the file system on those volumes have a fsck run on it
after a system crash, i.e., when the file system wasn't properly unmounted?

For the dom0, I see that happen during the boot process.  Not seeing anything
logged in /var/log/xen/.

I've been having spontaneous system reboots, and suspect that those have now
corrupted the file systems as well because nothing was running fsck on
reboot.  I added the devices to the dom0 /etc/fstab now in hopes that that
fixes it.

One would think that the domU would behave just like the dom0 in this regard.
I'd like to see evidence.