du result is smaller than xfs_quota report

["YeYin" <eyniy@xxxxxx>]

Hi, all,

I encountered some problems when I used XFS with project quota:

# cat /etc/projid 

docker-15091421396426:65061

docker-15092311522409:26286

docker-15101215637294:14162

# cat /etc/projects 

65061:/data/docker-volumes/docker-15091421396426

26286:/data/docker-volumes/docker-15092311522409

14162:/data/docker-volumes/docker-15101215637294

# xfs_quota -xc 'report -h' /data          

Project quota on /data (/dev/sda4)

                        Blocks              

Project ID   Used   Soft   Hard Warn/Grace   

---------- --------------------------------- 

docker-15091421396426   1.0G      0   100G  00 [------]

docker-15092311522409 371.5G      0   700G  00 [------]

docker-15101215637294 920.8M      0   400G  00 [------]

# du -sh /data/docker-volumes/docker-15092311522409 

200G    /data/docker-volumes/docker-15092311522409

As we can see,  du's result(200G) is smaller than xfs_quota report.

# xfs_db -xr -c 'dquot -p 26286' -c p /dev/sda4

diskdq.magic = 0x4451

diskdq.version = 0x1

diskdq.flags = 0x2

diskdq.id = 26286

diskdq.blk_hardlimit = 183500800

diskdq.blk_softlimit = 0

diskdq.ino_hardlimit = 0

diskdq.ino_softlimit = 0

diskdq.bcount = 97049008

diskdq.icount = 11725

diskdq.itimer = 0

diskdq.btimer = 0

diskdq.iwarns = 0

diskdq.bwarns = 0

diskdq.rtb_hardlimit = 0

diskdq.rtb_softlimit = 0

diskdq.rtbcount = 0

diskdq.rtbtimer = 0

diskdq.rtbwarns = 0

It seems that some blocks owned by project wasn't be freed. Anyone can give me some suggestions to find the reason?

Thanks,

Ye