== sanity test 184c: Concurrent write and layout swap ==== 04:46:37 (1788770797) 28+0 records in 28+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 4.56728 s, 6.4 MB/s 45+0 records in 45+0 records out 47185920 bytes (47 MB, 45 MiB) copied, 6.65982 s, 7.1 MB/s ref file size: ref1(29360128), ref2(47185920) 1792+0 records in 1792+0 records out 29360128 bytes (29 MB, 28 MiB) copied, 9.17708 s, 3.2 MB/s Copied 360448 bytes before swapping layout...