Nonsensical zpool status output during scrub

[tc1415]

System information

Type	Version/Name
Distribution Name	Fedora
Distribution Version	30
Linux Kernel	5.1.7
Architecture	x86_64
ZFS Version	0.8.0
SPL Version	-

Describe the problem you're observing

After setting a scrub running and waiting a bit, zpool status produces nonsensical output reporting it has scanned many TB of data on a pool with only 212 GB of data in it.

 state: ONLINE
  scan: scrub in progress since Wed Jun 12 14:12:54 2019
        212G scanned at 325M/s, 245T issued at 375G/s, 212G total
        0B repaired, 118068.85% done, no estimated completion time
config:

        NAME              STATE     READ WRITE CKSUM
        pool              ONLINE       0     0     0
          encrypted_nvme  ONLINE       0     0     0

errors: No known data errors

The man page notes that it can "slightly" exceed 100 % but this is three orders-of-magnitude higher!

Describe how to reproduce the problem

zpool scrub pool
Wait a bit (or do watch zpool status pool and watch it)
zpool status pool
Observe output.

Include any warning/errors/backtraces from the system logs

[DeHackEd]

Already fixed in #8766, will be 0.8.1

[drescherjm]

I was looking for that but could not find it in a quick search.

[tc1415]

Oh, excellent. I presume the issue is entirely cosmetic and the underlying scrub operation does what it is supposed to? If so I'll just ignore it and wait for 0.8.1 :-)

[behlendorf]

@tc1415 that's right. It's entirely cosmetic and the underlying scrub does correctly verify everything.

[tc1415]

Confirmed fixed in 0.8.1, so closing.