I verified this using an Amazon AWS HVM (Xen) precise medium instance; it had the full amount of memory only after booting a precise kernel with these patches.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1622567 Title: Xen guest total memory size smaller than specified in virtual configuration due to Xen balloon driver Status in linux package in Ubuntu: Fix Released Bug description: [Impact] On virtual systems under Xen, the kernel does not correctly calculate the total amount of memory. This results in the system having slightly less memory available for use than the actual amount provided by Xen. [Fix] See first comment. [Test Case] Load a virtual Xen guest with the latest precise (3.2) kernel, and notice that its total memory is less than what is allocated in the Xen configuration. Also possible is to load a virtual Xen guest, with the exact same Xen guest config/parameters, with the latest trusty (3.13) kernel; on trusty and later, the total amount of memory is correctly detected. [Regression Potential] None known. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1622567/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
