Hey,
I've got a fio verify run on an NVMe that gives me a crc32 verification fault, however it's not reproducible -- when rerunning on the same NVMe it comes back fine.
Also I'm getting a funny "error=Invalid or incomplete multibyte or wide character" error reported, see below.
Any hints for this?
Many thanks,
peter.
Test output
Running command: sudo -n fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=fio_test_verify --bs=4M --iodepth=64 --size=95% --verify=crc32c-intel --runtime=7200s --filename=/dev/nvme0n1 --readwrite=randwrite
fio_test_verify: (g=0): rw=randwrite, bs=4M-4M/4M-4M/4M-4M, ioengine=libaio, iodepth=64
fio-2.2.10
Starting 1 process
crc32c: verify failed at file /dev/nvme0n1 offset 480499466240, length 4194304
Expected CRC: 5afe4d21
Received CRC: db867b6c
fio_test_verify: (groupid=0, jobs=1): err=84 (file:io_u.c:1842, func=io_u_queued_complete, error=Invalid or incomplete multibyte or wide character): pid=5437: Thu Nov 26 12:22:11 2020
read : io=320324MB, bw=2662.2MB/s, iops=665, runt=120287msec
write: io=1769.9GB, bw=1800.3MB/s, iops=450, runt=1006702msec
cpu : usr=54.13%, sys=4.95%, ctx=815675, majf=0, minf=63136
IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.1%, >=64=0.0%
issued : total=r=80081/w=453085/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
latency : target=0, window=0, percentile=100.00%, depth=64
Run status group 0 (all jobs):
READ: io=320324MB, aggrb=2662.2MB/s, minb=2662.2MB/s, maxb=2662.2MB/s, mint=120287msec, maxt=120287msec
WRITE: io=1769.9GB, aggrb=1800.3MB/s, minb=1800.3MB/s, maxb=1800.3MB/s, mint=1006702msec, maxt=1006702msec
Disk stats (read/write):
nvme0n1: ios=2565084/14498835, merge=5/0, ticks=122248144/1021942068, in_queue=1142848760, util=100.00%
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