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Sun, 27 Jan 2019 19:16:39 -0800

1782440 469dd51 56eb90a a4de855 b0e5de9 cbfc017 faf8a13

** Description changed:

  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

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  [Bug][KVM][Crystal Ridge] Lack of data persistence guarantee of QEMU
  writes to host PMEM

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