HELP!!!

I get this error again !
I reinstall OS, and build four srpms success.
when build fifth srpm, i get Error, and after that , all build get  Error!
What happed ?

SElinux -> Permissive
space is enough ( more than 20G)
the /etc/passwd and /etc/group not changed ! I backup them after reinstlal OS!

==============================

Result
BuildError: error building package (arch i386), mock exited with status 1; see build.log for more informatio
==============================

DEBUG util.py:78:  remove tree: /var/lib/mock/dist-foo-build-18-13/root/builddir
DEBUG util.py:280: Executing command: ['/usr/sbin/userdel', '-r', 'mockbuild']
DEBUG util.py:256: userdel:删除目录 /builddir 时出错
DEBUG util.py:319: Child returncode was: 12
DEBUG util.py:280: Executing command: ['/usr/sbin/groupdel', 'mockbuild']
DEBUG util.py:256: groupdel:mockbuild 组不存在
DEBUG util.py:319: Child returncode was: 6
DEBUG util.py:280: Executing command: ['/usr/sbin/groupadd', '-g', '491', 'mockbuild']
DEBUG util.py:319: Child returncode was: 0
DEBUG util.py:280: Executing command: /usr/sbin/useradd -m -u 494 -g 491 -d /builddir -n mockbuild
DEBUG util.py:319: Child returncode was: 0
DEBUG util.py:280: Executing command: ['perl', '-p', '-i', '-e', 's/^(mockbuild:)!!/$1/;', '/etc/passwd']
DEBUG util.py:319: Child returncode was: 0
DEBUG util.py:280: Executing command: ['/bin/cp', '-v', '/usr/share/zoneinfo/Asia/Shanghai', '/etc/localtime']
DEBUG util.py:256: “/usr/share/zoneinfo/Asia/Shanghai” -> “/etc/localtime”
DEBUG util.py:319: Child returncode was: 0
DEBUG util.py:57: ensuring that dir exists: /var/lib/mock/dist-foo-build-18-13/root/builddir/build/RPMS
DEBUG util.py:60: creating dir: /var/lib/mock/dist-foo-build-18-13/root/builddir/build/RPMS
ERROR util.py:63: Could not create dir /var/lib/mock/dist-foo-build-18-13/root/builddir/build/RPMS. Error: [Errno 13] Permission denied: '/var/lib/mock/dist-foo-build-18-13/root/builddir/build'
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/mock/util.py", line 61, in mkdirIfAbsent
os.makedirs(dirName)
File "/usr/lib/python2.6/os.py", line 150, in makedirs
makedirs(head, mode)
File "/usr/lib/python2.6/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/var/lib/mock/dist-foo-build-18-13/root/builddir/build'
DEBUG util.py:98: kill orphans

==============================
[eric@wenjia etc]$ ll -d /var/lib/mock/dist-foo-build-
18-13/root/builddir
drwx------. 2 torrent mock 4096 03-31 16:20 /var/lib/mock/dist-foo-build-18-13/root/builddir

[eric@wenjia build-01]$ cat /etc/passwd | grep koji
kojibuilder:x:494:490::/builddir:/bin/bash

[eric@wenjia build-01]$ cat /etc/group | grep koji
mock:x:491:kojibuilder,eric
kojibuilder:x:490:

[eric@wenjia build-01]$ cat /etc/passwd | grep torrent
torrent:x:495:492:BitTorrent Seed/Tracker:/var/lib/bittorrent:/sbin/nologin

==============================

2010/3/31 Eric Zhong <ericiszhongwenjia@gmail.com>
Yes, user is belong to mock group!
SELinux Disabled!
This Error come after i delete some users' account : koji, builder, etc
these are all created by test, not used now, so i delete them.
Is this cause that ?
I have reinstall the OS, and it 's OK now !
But i also want to know why? Prevent Next time i trigger it .

2010/3/30 <rotru@br.ibm.com>

Does user belong to mock group ?

Regards

Rodrigo Trujillo
Software Engineer
Linux Technology Center - Brasil



From: Eric Zhong <ericiszhongwenjia@gmail.com>
To: buildsys <buildsys@lists.fedoraproject.org>
Date: 29/03/2010 02:53
Subject: Mock: Permission denied
Sent by: buildsys-bounces@lists.fedoraproject.org





What's wrong?

=========================================================

[eric@wenjia ~]$ ll -d /var/lib/mock/dist-foo-build-42-21/root/builddir/
drwx------ 2 torrent mock 4096 03-29 11:08 /var/lib/mock/dist-foo-build-42-21/root/builddir/


=========================================================
[root.log]
......
DEBUG util.py:60:  creating dir: /var/lib/mock/dist-foo-build-42-21/root/builddir/build/RPMS
ERROR util.py:63:  Could not create dir /var/lib/mock/dist-foo-build-42-21/root/builddir/build/RPMS. Error: [Errno 13] Permission denied: '/var/lib/mock/dist-foo-build-42-21/root/builddir/build'

Traceback (most recent call last):
 File "/usr/lib/python2.6/site-packages/mock/util.py", line 61, in mkdirIfAbsent
   os.makedirs(dirName)
 File "/usr/lib/python2.6/os.py", line 150, in makedirs

   makedirs(head, mode)
 File "/usr/lib/python2.6/os.py", line 157, in makedirs
   mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/var/lib/mock/dist-foo-build-42-21/root/builddir/build'

DEBUG util.py:98:  kill orphans
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