Hi,
copy_file_range for NFSv4.2 is broke by this
commit 9f0b5792f07d8f0745c3620d577d6930ff2a96fd
Author: Anna Schumaker <[email protected]>
Date: Mon Sep 28 13:09:01 2020 -0400
NFSD: Encode a full READ_PLUS reply
LTP copy_file_range01 repeats this failure:
copy_file_range01.c:144: TFAIL: file contents do not match
Revert this commit then the failure gone.
Attached simplified reproducer for your ref.
--
Murphy