== sanity test 184c: Concurrent write and layout swap ==== 01:02:20 (1767333740) 31+0 records in 31+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 1.74044 s, 18.7 MB/s 32+0 records in 32+0 records out 33554432 bytes (34 MB, 32 MiB) copied, 1.91464 s, 17.5 MB/s ref file size: ref1(32505856), ref2(33554432) 1984+0 records in 1984+0 records out 32505856 bytes (33 MB, 31 MiB) copied, 3.70488 s, 8.8 MB/s Copied 1196032 bytes before swapping layout...