On Sat, Mar 13, 2021 at 08:13:18PM -0800, Anton Eidelman wrote:
Please, apply the following two upstream commits (attached) (in this order): d567572906d9 nvme: unlink head after removing last namespace ac262508daa8 nvme: release namespace head reference on error
TO: v5.4, v5.5, v5.6, v5.7 These commits are present in v5.8 and apply cleanly to the above.
5.4 is probably okay, but the rest are EOL and no longer maintained. Please visit kernel.org for the current stable kernel maintenance status.