I just run in strange issue. I have domain controler that was assigned 2 gb of ram and I wanted to doulble it but then windows 2012 would not start it just froze or started recovery and circle keep spinning. I went down to 3.5 gb and it started no issues. I have six core amd system with 16 gb of ram. I have also installed windows 2012 standard on xen with xeon 5520 and I was able push memory to 8 gb of ram. I am using xen 4.3.1-pre. The system that did not work had the latest xen git 4.3.1-pre installed. _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
The issue of 4GB versus 3.5 GB sounds like a 32-bit OS limitation to me. 32-bit operating systems can only address a maximum of 4GB; out of this however parts are not useable due to I/O addresses, BIOS adresses etc. Generally 3.5 GB is considered a realistic maximum for a 32-bit OS. So the question basically is: Is your domain controller using a 32-bit windows OS? If so, it might explain the issue you are seeing. Am 29.07.13 16:04, schrieb jacek burghardt:> I just run in strange issue. I have domain controler that was assigned 2 > gb of ram and I wanted to doulble it but then windows 2012 would not > start it just froze or started recovery and circle keep spinning. I went > down to 3.5 gb and it started no issues. I have six core amd system with > 16 gb of ram. I have also installed windows 2012 standard on xen with > xeon 5520 and I was able push memory to 8 gb of ram. I am using xen > 4.3.1-pre. The system that did not work had the latest xen git 4.3.1-pre > installed. > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >
On Mon, Jul 29, 2013 at 8:21 AM, Atom2 <ariel.atom2@web2web.at> wrote:> The issue of 4GB versus 3.5 GB sounds like a 32-bit OS limitation to me. > > 32-bit operating systems can only address a maximum of 4GB; out of this > however parts are not useable due to I/O addresses, BIOS adresses etc. > > Generally 3.5 GB is considered a realistic maximum for a 32-bit OS. > > So the question basically is: Is your domain controller using a 32-bit > windows OS? If so, it might explain the issue you are seeing. > > Am 29.07.13 16:04, schrieb jacek burghardt: > >> I just run in strange issue. I have domain controler that was assigned 2 >> gb of ram and I wanted to doulble it but then windows 2012 would not >> start it just froze or started recovery and circle keep spinning. I went >> down to 3.5 gb and it started no issues. I have six core amd system with >> 16 gb of ram. I have also installed windows 2012 standard on xen with >> xeon 5520 and I was able push memory to 8 gb of ram. I am using xen >> 4.3.1-pre. The system that did not work had the latest xen git 4.3.1-pre >> installed. >> >> >> ______________________________**_________________ >> Xen-users mailing list >> Xen-users@lists.xen.org >> http://lists.xen.org/xen-users >> >> > ______________________________**_________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >The OP stated that the guest OS is Windows 2012 which is 64-bit only. -- Shane D. Johnson IT Administrator Rasmussen Equipment _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users