1782440 469dd51 56eb90a a4de855 b0e5de9 cbfc017 faf8a13 ** Description changed:
Description: When the host persistent memory is used as the backend of vNVDIMM, QEMU itself may write to the host pmem, e.g., in vNVDIMM label emulation and live migration. In those cases, QEMU needs to take necessary operations (e.g., flush&fence after writes, or store with non-temporal hint) to ensure the data persistence of its own writes to PMEM. Therefore, data on vNVDIMM can be in a consistent status on abnormal termination of QEMU (e.g., QEMU/host kernel crash, host power failure, etc.). Unfortunately, such operations are missed in current QEMU implementation. Target QEMU Release:3.0.0 - Target Release: 18.10 + Target Release: 19.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745900 Title: [Bug][KVM][Crystal Ridge] Lack of data persistence guarantee of QEMU writes to host PMEM To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1745900/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
