# vmstat -m on the guest immediately after the df5287 run (read-side) and
# during/after the df5287c write-side run (usb-storage bulk-OUT):
# after read-side run (EIO marker hit):
	       Type   Count  MemUse SlabUse   Limit Requests
                USB     331   1.10M       0    390M       16 -> 2.95K
             USBdev      16   4.34K       0    390M       31 -> 5.81K
# during write-side run (iter ~1000, run.3.log):
                USB     320   1.22M       0    390M    1.06K
             USBdev      21   71.0K       0    390M    2.06K
# final write-side reading before kill:
                USB     324   1.24M       0    390M    1.12K
             USBdev      19   2.95K       0    390M    2.18K