Hi, All
Today I downloaded the 2.6.37 Paravirtualized Kernel 32-bit for Xen
from http://www.stacklet.com, and installed it into domU,
After booting up the domU, I noticed the the memory inside the domU is
less than allocated memory.
e.g. I assigned 256M memory to the domU, but inside the domU, it only
has 244MB memory
[root@localhost ~]# free -m
total used free shared buffers cached
Mem: 244 35 209 0 2 19
-/+ buffers/cache: 13 231
Swap: 0 0 0
Any idea?
Thanks.
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Steve Allison
2011-Jun-27 07:22 UTC
Re: [Xen-users] memory issue on paravirtualized xen kernel
On 27/06/2011 01:20, Jingyun He wrote:> Hi, All > Today I downloaded the 2.6.37 Paravirtualized Kernel 32-bit for Xen > from http://www.stacklet.com, and installed it into domU, > After booting up the domU, I noticed the the memory inside the domU is > less than allocated memory. > e.g. I assigned 256M memory to the domU, but inside the domU, it only > has 244MB memory > [root@localhost ~]# free -m > total used free shared buffers cached > Mem: 244 35 209 0 2 19 > -/+ buffers/cache: 13 231 > Swap: 0 0 0 > > Any idea? > > Thanks. > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-usersI also noticed this change going from Debian Lenny (2.6.26) to Debian Squeeze (2.6.32) ... It is affected by whether I used PyGrub or not. Without PyGrub the memory in the domU was correct, at 256M. After some investigation however it seems that some reserved memory moves from the "used" column and instead diminishes the "total" column. For example..... 2.6.32 with PyGrub gave me 244M total RAM, with 15M used, 229M available. 2.6.32 without PyGrub gave me 256M total RAM, with 27M used, 229M available. .....so it didn''t make any difference in the end. I guess some reserved memory gets allocated differently? -- May the ping be with you .. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hello everyone, Last Friday I tried without success to get NAT networking working under Xen using mainly this guide: http://wiki.kartbuilding.net/index.php/Xen_Networking We are trying to get this set up under Debian Squeeze with Xen 4.1 built from source from Sid (Unstable). Can somebody provide a guide or link to a guide that does work, including how to do port forwarding to the virtual machines? Many thanks! Iordan Iordanov _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users