trying 2000 iterations read thread 1085073728 start write thread 1093466432 start write thread 1093466432 stop read thread 1085073728 stop Pass: all stats after completion of extending writes saw the new size Command exited with non-zero status 2 0.00user 0.05system 0:12.13elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 64inputs+7008outputs (0major+212minor)pagefaults 0swaps Pass: faulty sync/aio dio writes give EFAULT and don't write garbage Command exited with non-zero status 2 0.00user 0.00system 0:00.08elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 56inputs+40outputs (0major+112minor)pagefaults 0swaps 0.00user 0.03system 0:07.00elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+128000outputs (0major+395minor)pagefaults 0swaps 0.04user 0.48system 0:02.19elapsed 23%CPU (0avgtext+0avgdata 0maxresident)k 2728inputs+207360outputs (1599major+24404minor)pagefaults 0swaps 0.05user 0.47system 0:01.90elapsed 28%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1599major+24403minor)pagefaults 0swaps 0.04user 0.48system 0:02.25elapsed 23%CPU (0avgtext+0avgdata 0maxresident)k 2560inputs+207360outputs (1599major+24404minor)pagefaults 0swaps 0.04user 0.46system 0:01.89elapsed 27%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+207360outputs (1599major+24403minor)pagefaults 0swaps 0.00user 0.04system 0:07.02elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+128000outputs (0major+135minor)pagefaults 0swaps 0.85user 1.01system 0:15.43elapsed 12%CPU (0avgtext+0avgdata 0maxresident)k 313600inputs+409600outputs (1599major+24185minor)pagefaults 0swaps dio_truncate: child reading file parent loop # 0 parent loop # 1 parent loop # 2 parent loop # 3 parent loop # 4 parent loop # 5 parent loop # 6 parent loop # 7 parent loop # 8 parent loop # 9 0.00user 0.79system 2:21.25elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+2560008outputs (0major+474minor)pagefaults 0swaps num_passes set to 10 Pass 1... num_passes set to 10 Pass 1... Pass 2... num_passes set to 10 Pass 1... Pass 2... Pass 3... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... Pass 7... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... Pass 7... Pass 8... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... Pass 7... Pass 8... Pass 9... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... Pass 7... Pass 8... Pass 9... Pass 10... num_passes set to 10 Pass 1... Pass 2... Pass 3... Pass 4... Pass 5... Pass 6... Pass 7... Pass 8... Pass 9... Pass 10... 0.97user 10.15system 0:54.83elapsed 20%CPU (0avgtext+0avgdata 0maxresident)k 24inputs+5242968outputs (0major+164434minor)pagefaults 0swaps 0.00user 0.42system 0:01.94elapsed 21%CPU (0avgtext+0avgdata 0maxresident)k 16inputs+192000outputs (0major+114minor)pagefaults 0swaps read_checkzero done 1.46user 12.55system 0:14.07elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 16inputs+8outputs (0major+96minor)pagefaults 0swaps 0.00user 0.00system 0:00.01elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k 32inputs+784outputs (0major+238minor)pagefaults 0swaps 0.00user 0.00system 0:00.21elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+784outputs (0major+239minor)pagefaults 0swaps 0.00user 0.00system 0:00.20elapsed 0%CPU (0avgtext+0avgdata 0maxresident)k 789inputs+792outputs (0major+239minor)pagefaults 0swaps