Xen users - Apr 2006 - Increasing memory of a DomU with \''xm mem-set\''

Hello together,

currently i am wondering if it is possible to increase memory for
an unpriviliged domain.

If i create a domain with initially 64MB of RAM, and then try to
increase the memory of the running domain to 128MB, i never get
more then the initially set 64MB, while decreasing the memory
works like expected.

Here is what i have done:

---<snip>---
xendomu:~ # cat /proc/xen/balloon
Current allocation:    65536 kB
Requested target:      65536 kB
Low-mem balloon:        8192 kB
High-mem balloon:          0 kB
Xen hard limit:          ??? kB
---<snap>---

Trying to increase:

---<snip>---
xen-dom0:~ # xm mem-set xendom1 128
---<snap>---

---<snip>---
xendomu:~ # cat /proc/xen/balloon
Current allocation:    65536 kB
Requested target:     131072 kB
Low-mem balloon:        8192 kB
High-mem balloon:          0 kB
Xen hard limit:        65536 kB (inc.      188 kB driver headroom)
---<snap>---

Any suggestions?

Thanks and greetings,
-timo


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