Windows reports 100% disk usage when rpc-quotad is started

[Stefan Staeglich]

We export NFS shares to a Samba server to enable access from Windows clients. Quotas are partially active on these shares.

With Ubuntu 24.04, the free speciher space under Windows is displayed as 0 bytes if the rpc-quotad is running on the NFS server. The problem does not occur under Ubuntu 22.04 with the same configuration.

This is the global section of our samba config:

[global]
        client signing = if_required
        disable netbios = Yes
        kerberos method = secrets and keytab
        realm = EXAMPLE.DOMAIN
        security = ADS
        winbind enum groups = Yes
        winbind enum users = Yes
        winbind expand groups = 2
        winbind refresh tickets = Yes
        winbind use default domain = Yes
        workgroup = EXAMPLE
        rpc_daemon:spoolssd = fork
        rpc_server:spoolss = external
        spoolss: architecture = Windows x64
        idmap config example:unix_nss_info = yes
        idmap config example:unix_primary_group = yes
        idmap config example:range = 1010-999999
        idmap config example:schema_mode = rfc2307
        idmap config example:backend = ad
        idmap config * : range = 1000-1009
        full_audit:priority = NOTICE
        full_audit:facility = local7
        full_audit:prefix = IP=%I|USER=%u|MACHINE=%m|VOLUME=%S
        full_audit:success = pwrite write renameat
        full_audit:failure = none
        idmap config * : backend = tdb

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: samba 2:4.19.5+dfsg-4ubuntu9
ProcVersionSignature: Ubuntu 6.8.0-41.41-generic 6.8.12
Uname: Linux 6.8.0-41-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Fri Aug 23 12:50:09 2024
ProcEnviron:
 LANG=en_US.UTF-8
 LANGUAGE=en
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
SambaServerRegression: Yes
SmbConfIncluded: No
SourcePackage: samba
TestparmExitCode: 0
UbuntuFailedConnect: Yes
UpgradeStatus: Upgraded to noble on 2024-08-22 (1 days ago)

[Stefan Staeglich (staeglis)]

The output of the command quota looks as normal. We tested the Ubuntu 22.04 kernel already.