Ubuntu
linux package

  1. Bug #1622567
  2. Activity log

Activity log for bug #1622567

Date Who What changed Old value New value Message
2016-09-12 11:13:45 Dan Streetman bug added bug
2016-09-12 11:15:45 Dan Streetman nominated for series Ubuntu Precise
2016-09-12 11:15:55 Dan Streetman linux (Ubuntu): status New Fix Released
2016-09-12 20:17:17 Dan Streetman 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. [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. [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.
2016-09-12 20:41:29 Dan Streetman summary kernel does not calculate correct total memory size Xen guest total memory size smaller than specified in virtual configuration due to Xen balloon driver
2016-09-26 19:16:11 Brad Figg tags verification-needed-precise
2016-09-27 15:44:29 Dan Streetman tags verification-needed-precise verification-done-precise