similar to: Xen and the 4Gig memory Limit

I am evaluating XEN to see if we might be able to use it in place of Vmware ESX for our Linux guests. (Obviously will not work for our Windows servers....) I booted the demo CD under Vmware ESX and it worked fine. Xen guests under Vmware.... >From the specs, I see there is a 4GB limit. Is that limit per domain, for all guests, or for the entire server? Right now our vmware servers

I just discovered that my xen hypervisor only believes that it has 3199 MB of memory, when there are 4GB inside the computer. I don''t know how long this has been this way, but I do not know how to try and force the hypervisor to realize how much memory it has. Any ideas how I can accomplish this? I am running CentOS 5 (RHEL 5), kernel 2.6.18-53.1.4.el5xen, x86_64, xen 3.0.3.

Hi This is a general question has anyone got Xen 3 to work with more than 4GIG of memory installed on there physical machine? I have tried 2 different machines with more than 4 GIG of memory with no success as yet. I can get Xen0 booting no problem, i run service xend start with no problem, i then run xm info and it sees more than 4 gig of memory available. Fantastic up to this point. After

Hey All I have a dual Xeon box used by our students for data crunching. It has 4GB of RAM. After initial installation everything went well until someone found they couldn;t allocate more than 512MB of RAM per process. After some poking around I found some things things to adjustin the kernel conf file: options MAXDSIZ="(2000*1024*1024)" options

Package: xen-hypervisor-3.0.3-1-i386-pae Version: 3.0.3-0-2 Severity: minor The package description reads: This version of the hypervisor is built with PAE enabled, in order to support systems with more than 4GB of memory. If you have less than that you should probably choose the non -pae version. That's not entirely true. I tried installing the non-pae version on my ProLiant

Why win32 application under Wine can allocate only 2000 MB of memory, but same programm translated by gcc can get 3800 MB. (OS/Compilers - WinXP/Visual C 6.0 32 bit, and openSUSE 11 x64/gcc -m32) #include <stdlib.h> #include <stdio.h> #include <time.h> main(int argc, char **argv) {unsigned long n,m,i; int *p,*p1,*p2,*p3; clock_t time1,time2; i=4095; if (argc == 2) i = (size_t)

I am curious what should be the benchmark for making the choice of switching from 32bit to 64bit Linux? I have a few assumptions below. Is my logic sound? (This is a follow up to the "Adding RAM" thread) Assumptions: 1. 4GB Memory. The main benefit of 64bit mode is the ability to address more than 4GB of RAM. I assume that you use 64bit mode if you want to *efficiently* have

Having avoided them for some time now, based on compatibility concerns as I began to learn and use Linux full time, I?ve recently gotten the urge to start playing around with some 64-bit distro?s. The benefit of course is running more than the 4Gb (system-wide) limit imposed by a 32-bit OS. In my current system I only have 2Gb (2x1Gb) of RAM so I?m thinking of either adding 4Gb (2x2Gb) or even

I have noticed that many games (Farcry 2, Fallout 3, Fallout: New Vegas, Drakensang) crash with some form of out of memory messages. So obviously something is leaking memory (whether it is wine or the game or drivers, I cannot say). But it always happens as soon as wine uses ~1.5 GB of RAM. Also I wonder if it has something to do with this bug: http://bugs.winehq.org/show_bug.cgi?id=25428 I ran

Hello, I have a problem with a new install of xen. I work on a Dell poweredge 2950, bi xeon Quadcore ang 32G of memory. The domain0 run on a gentoo 32 Bits. I use xen 3.1.2 with pae xen kernel : 2.6.20 So when i boot on a normal kernel, i see all of my memory. But when i boot on the xen kernel, i have only 15G memory available. I try to force the size memory in the boot options in grub

Hi, everyone I know that this has been asked to death on the list, and in the past few days I''ve been trying to see if there were other options for getting a xen host to use more than 4GB of RAM. I''ve tried xen-unstable x86_64 on Xeon EM64Ts as well as xen-unstable with the initial PAE support but neither got me too far from booting: the former hangs when using the supplied

Dear List, I am trying to?plot?bathymetry contours around the Hawaiian Islands using the package rgdal and PBSmapping.? I have run into a memory limit when trying to combine two fairly small objects using cbind().? I have increased the memory to 4GB, but am being told I can't allocate a vector of size 240 Kb.? I am running R 2.11.1 on a Dell Optiplex 760 with Windows XP.? I have pasted

I have a centos 5 server running on olidata tegeo server with 2 opteron 1800 and 8GB ram. I installed centos 32bit so I should be able to use 4GB. My system on boot recognize 4GB ram but allocate only 2GB. Extract from dmesg: Warning only 4GB will be used. Use a PAE enabled kernel. 3200MB HIGHMEM available. 896MB LOWMEM available. Memory: 2056396k/4194304k available (2043k kernel code, 39416k

I wanted to install Xen on 32bit processor with 8GB RAM. I am running Debian on it. The general Kernel can only address ~4GB of RAM. So, Is it necessary to install BigMEM kernel so that all the memory get addressed? And then install xen kernel. Or ?? Suggestions welcome. Thanks, gorkhe _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

Hello, I''m trying to create a HVM virtual machine (windows guest) with 3G of memory but this isn''t working. Xen create the domain but nothing happens (the OS don''t start and the cpu time remains 0). Things start to work with 2000MB or below. Is there some kind of upper limit for HVM virtual machines? I''m using a Dell PowerEdge 8250 machine with 16GB of memory.

Hello I have Debian Linux 2.6.32-5-xen-amd64 Xen 4.0.1, 2 SAS drives in RAID 1, 16GB ram. I have virtualized Windows 2003R2 32bit where you install the latest version 0.11.0.295 gplpv After reading and reading forums and post testing, I noticed that the hard disk performance drops significantly when I assign the windows domU 9GB ram. (below I leave the config files) If I run the

Hi, I was wondering if anyone would know the cons of running a PAE kernel...? I have a 4GB pc and was wondering if it was worth going the PAE way to gain those exta 700MB... In the past, I heard that these 700MB were normally reserved for bios or chipset stuff... And that running in PAE would slow down some processes. By the way, I know 64 bits would solve this dilemn but right now I am

Hi all, Still playing with a big database (120k users, 150k computers) I tried to split my users into a lot of OUs. This increased the database size and I was not able to finish to add users into the DB because database file has reached 4GB size which seems to be the limit. First: am I right to say file /var/lib/samba/private/sam.ldb.d/DC=example,DC=com.ldb has a maximum size of 4GB? Secondly:

Some question. Can I install Xen-3.2.1 with 2.6.18-xen kernel... to my Dom0 and without HVM, starting a debian(DomU) with kernel 2.6.25 from kernel src and compiled with all XEN port / features ? or i need to use the vmlinuz-2.6.18-xen to all my DomU ?? Thanks Crazy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

dear All, I had a Centos 5.5 OS running for about 6 months used as a Xen VM server prfectly running 3 Virtual machines Its a Sun Blade server with 8 core Xeon Proceesor with 32 GB Ram couple of days back I added another 32 gb ram . The bios shows the added ram that is now it shows me 64 GB but the Centos OS just recognizes 32gb only the OS details are: Centos release 5.5 final Kernel