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Add https://github.com/lnykryn/systemd-rhel/commit/c50b7bcbebcfebfce3a7e7fb77f88f4b590fb2b5 and its fix https://github.com/lnykryn/systemd-rhel/pull/280.

https://github.com/lnykryn/systemd-rhel/pull/281

fix merged to staging branch -> https://github.com/lnykryn/systemd-rhel/pull/281 -> post

*** Bug 1679494 has been marked as a duplicate of this bug. ***

On qemu/kvmu, the result of /bin/systemd-detect-virt is kvm, but not 'none' which is not expected for dimm RAM hotplug/unplug in kvm guest.

Yumei, have you tested this on rhel8?

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2019:3592