kern/166840: Quotas: used block count increases but does not decrease

[Johan Bergs]

>Number:         166840
>Category:       kern
>Synopsis:       Quotas: used block count increases but does not decrease
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Apr 11 12:10:14 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Johan Bergs
>Release:        9.0-RELEASE
>Organization:
University of Antwerp
>Environment:
FreeBSD euterpe.cmi.ua.ac.be 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Fri Mar 30 11:02:32 CEST 2012     root at euterpe.cmi.ua.ac.be:/usr/obj/usr/src/sys/PATS  amd64
>Description:
We have user quotas enabled on an amd64 system. The filesystem that has quotas enabled is mounted using the following options: (ufs, NFS exported, local, with quotas, journaled soft-updates)

When we check the user quotas using repquota, we can see all user quota. If a user adds new files to the filesystem, repquota does indeed reflect this: the used block count goes up. However, if a user deletes files, the used block count does not go down.

Running quotacheck recalculates the used block count, but afterwards the situation remains the same: used block count can increase, but does not decrease.

The system has recently been upgraded from FreeBSD 8.2. Quotas were working fine when running 8.2.



>How-To-Repeat:
Enable quotas on a FreeBSD 9.0 system, on a partition with soft updates and soft update journaling enabled. Create files and the used block count increases. Delete some files and the used block count remains the same.
>Fix:
None

>Release-Note:
>Audit-Trail:
>Unformatted: