I'm showing a failing harddrive here.
The dumps are pretty consistent and agree a hard disk fault is the source of error.
If this had been going on I would be quick to blame a related driver. however, Given the consistency and slow but increasing frequency and severity of the problems, you may be due for a new hard drive in that machine.
...I would let someone else verify this before making any purchases or going in for service though.
In the meantime run a disk check on it if you can.