Occasionally I will have a VM lock up (UI remains on screen but windows Dow not respond) and notice that the MEM size in xentop is greater than the MAXMEM value in xentop, while at least one associated cpu is spinning (xentop shows state as perpetually r aka running).
Memory ballooning is enabled.
Swap is available in the vm and not really being used much.
First…what is the definition of MAXMEM vs. MEM in xentop (e.g. is MAXMEM a limit or a high water mark)?
Second, depending on the answer to the above, I may ask…how can MEM be larger than MAXMEM?