Hey all - sorry for any formatting errors, I''m using MS Outlook In a new job here - I''m as ashamed as you are shocked... ;-) I''ve looked through the archive and haven''t spotted an answer to this, it''s driving me a little buggy. I have an HP DL360 G3 - 2x 2.8GHz Xeons with 4.5GB of RAM. I''m running the precompiled 2.0.1 Xen you can download. I''m Aware I can only make use of up to 4GB total. The dom0 kernel, or the domU kernel only seems to address about 900MB (per top, /proc/meminfo: MemTotal: 904312 kB) Regardless of what I set it to. I have one instance of a VM set up With 2GB or RAM: Name Id Mem(MB) CPU State Time(s) Console Domain-0 0 507 0 r---- 91.4 ObidosTest 1 2047 1 r---- 978.2 9601 Were you can see that ObidosTest has been started with 2048MB But cat /proc/xen/memory_target reveals 939524096 When I''ve modified grub.conf mem_dom0= line to anything over 900MB It also tops out at 900MB. Xm baloon commands don''t seem to make a difference either... Help? Thanks, Josh ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> Were you can see that ObidosTest has been started with 2048MB > But cat /proc/xen/memory_target reveals 939524096You need to make sure your kernels are built with CONFIG_HIGHMEM4G if you want to use more than 900MB, same as normal Linux. Ian ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
Luciano Miguel Ferreira Rocha
2004-Dec-15 19:27 UTC
Re: [Xen-devel] Can''t get a VM to use more than ~900M
On Wed, Dec 15, 2004 at 10:47:44AM -0800, Goldenhar, Josh wrote:> Hey all - sorry for any formatting errors, I''m using MS Outlook > In a new job here - I''m as ashamed as you are shocked... ;-) > > I''ve looked through the archive and haven''t spotted an answer to > this, it''s driving me a little buggy. > > I have an HP DL360 G3 - 2x 2.8GHz Xeons with 4.5GB of RAM. > I''m running the precompiled 2.0.1 Xen you can download. I''m > Aware I can only make use of up to 4GB total. > > The dom0 kernel, or the domU kernel only seems to address about > 900MB (per top, /proc/meminfo: MemTotal: 904312 kB) > Regardless of what I set it to. I have one instance of a VM set up > With 2GB or RAM: > Name Id Mem(MB) CPU State Time(s) Console > Domain-0 0 507 0 r---- 91.4 > ObidosTest 1 2047 1 r---- 978.2 9601 > > Were you can see that ObidosTest has been started with 2048MB > But cat /proc/xen/memory_target reveals 939524096 > > When I''ve modified grub.conf mem_dom0= line to anything over 900MB > It also tops out at 900MB. > > Xm baloon commands don''t seem to make a difference either... > > Help?The dom-U kernel may not have been compiled with support for > 1GB of memory. Get the xen source, compile, and run: make -C linux-2.6.9-xenU ARCH=xen menuconfig Go to: X86 Processor Configuration --> High Memory Support and choose 4GB Recompile, and the kernel and its modules should be in dist/install Regards, Luciano Rocha ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
Goldenhar, Josh
2004-Dec-15 20:00 UTC
RE: [Xen-devel] Can''t get a VM to use more than ~900M
Thanks Luciano and Ian - I was just being a bonehead.... Working now... 3GB virtual machine. Josh -----Original Message----- From: Luciano Miguel Ferreira Rocha [mailto:strange@nsk.no-ip.org] Sent: Wednesday, December 15, 2004 11:28 AM To: Goldenhar, Josh Cc: xen-devel@lists.sourceforge.net Subject: Re: [Xen-devel] Can''t get a VM to use more than ~900M On Wed, Dec 15, 2004 at 10:47:44AM -0800, Goldenhar, Josh wrote:> Hey all - sorry for any formatting errors, I''m using MS Outlook In a > new job here - I''m as ashamed as you are shocked... ;-) > > I''ve looked through the archive and haven''t spotted an answer to this, > it''s driving me a little buggy. > > I have an HP DL360 G3 - 2x 2.8GHz Xeons with 4.5GB of RAM. > I''m running the precompiled 2.0.1 Xen you can download. I''m Aware I > can only make use of up to 4GB total. > > The dom0 kernel, or the domU kernel only seems to address about > 900MB (per top, /proc/meminfo: MemTotal: 904312 kB) > Regardless of what I set it to. I have one instance of a VM set up > With 2GB or RAM: > Name Id Mem(MB) CPU State Time(s) Console > Domain-0 0 507 0 r---- 91.4 > ObidosTest 1 2047 1 r---- 978.2 9601 > > Were you can see that ObidosTest has been started with 2048MB But cat > /proc/xen/memory_target reveals 939524096 > > When I''ve modified grub.conf mem_dom0= line to anything over 900MB It > also tops out at 900MB. > > Xm baloon commands don''t seem to make a difference either... > > Help?The dom-U kernel may not have been compiled with support for > 1GB of memory. Get the xen source, compile, and run: make -C linux-2.6.9-xenU ARCH=xen menuconfig Go to: X86 Processor Configuration --> High Memory Support and choose 4GB Recompile, and the kernel and its modules should be in dist/install Regards, Luciano Rocha ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel