== sanity test 184c: Concurrent write and layout swap ==== 04:15:22 (1786436122) 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 9.32044 s, 7.7 MB/s 68+0 records in 68+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 9.62175 s, 7.4 MB/s ref file size: ref1(71303168), ref2(71303168) 4352+0 records in 4352+0 records out 71303168 bytes (71 MB, 68 MiB) copied, 23.5254 s, 3.0 MB/s Copied 589824 bytes before swapping layout...