cowdancer, cowbuilder, and qemubuilder repository: Changes to 'master'

[Junichi Uekawa]

 Makefile                                         |    2 
 cowbuilder.c                                     |   19 +++++++
 cowbuilder_util.c                                |   53 +++++++++++++++++++++
 cowbuilder_util.h                                |    8 +++
 debian/changelog                                 |    8 +++
 test_cowbuilder.c                                |    2 
 test_cowbuilder_util.c                           |   58 +++++++++++++++++++++++
 tests/log/000_test_basic.sh.log                  |   30 +++++------
 tests/log/001_test_symlink.sh.log                |   34 ++++++-------
 tests/log/002_test_open.sh.log                   |   26 +++++-----
 tests/log/003_test_fopen.sh.log                  |   26 +++++-----
 tests/log/004_test_fopen64.sh.log                |   26 +++++-----
 tests/log/010_test_noilistfile.sh.log            |    4 -
 tests/log/012_test_chown.sh.log                  |   32 ++++++------
 tests/log/013_test_chmod.sh.log                  |   26 +++++-----
 tests/log/014_ilistdump_test.sh.log              |    8 +--
 tests/log/015_test_ilistdelete.sh.log            |    2 
 tests/log/016_memleakcheck.sh.log                |   50 ++++++++++---------
 tests/log/017_tempfilecheck.sh.log               |    2 
 tests/log/018_testcxx.sh.log                     |    6 +-
 tests/log/019_test_filename_with_space.sh.log    |   28 +++++------
 tests/log/020_test_lchown.sh.log                 |   40 +++++++--------
 tests/log/022_kernel_waitpid.sh.log              |    2 
 tests/log/101_test_qemubuilder_dumpconfig.sh.log |    2 
 tests/log/test_cowbuilder_util.c.log             |    1 
 tests/log/test_file.c.log                        |    2 
 tests/log/test_qemuarch.c.log                    |   16 +++---
 27 files changed, 331 insertions(+), 182 deletions(-)

New commits:
commit d05873856f67c4db97e8f4ad4fc5b33cac3d7eb8
Author: Junichi Uekawa <dancer at netfort.gr.jp>
Date:   Thu Mar 28 10:38:02 2013 +0900

    allocate string dynamically using alloca.

commit 7487258b7bb2e1004367cdfe1ff399f1a0be3cc3
Author: Junichi Uekawa <dancer at netfort.gr.jp>
Date:   Wed Mar 27 23:41:00 2013 +0900

    move out code to cowbuilder_util, and add test.

commit 203036070b907fe834f3d844c9fb97faa8bf857b
Author: Jean-Baptiste Lallement <jean-baptiste.lallement at canonical.com>
Date:   Tue Mar 19 10:11:28 2013 +0100

    Bug#703406: cowbuilder deletes content of bind-mounted directories
    
    Package: cowdancer
    Version: 0.71
    Tags: patch
    
    Reference issue in Ubuntu [1]
    
    If a bind-mounted directory is still mounted during the clean-up phase
    (device busy for example) cowbuilder unconditionally deletes its content.
    
    Excerpt from a log with this bug (complete log attached)
    =====
    I: umounting /var/lib/jenkins/cu2d
    umount: /var/cache/pbuilder/build/cow.15281/var/lib/jenkins/cu2d: device
    is busy.
             (In some cases useful info about processes that use
              the device is found by lsof(8) or fuser(1))
    [...]
      -> Cleaning COW directory
       forking: rm -rf /var/cache/pbuilder/build//cow.1195
    rm: cannot remove
    `/var/cache/pbuilder/build//cow.1195/var/cache/pbuilder/ccache': Device
    or resource busy
    rm: cannot remove
    `/var/cache/pbuilder/build//cow.1195/var/lib/jenkins/cu2d/work/experimental/100scopes':
    Device or resource busy
    rm: cannot remove
    `/var/cache/pbuilder/build//cow.1195/var/lib/jenkins/cu2d/launchpad.cache':
    Directory not empty
    =====
    
    This bug occurs when pbuilder fails to mount a bindmounted directory,
    then fails to unmount previously successfully mounted directories. This
    condition is not so rare when executing several cowbuilder processes in
    parallel using the same bind-mounted directories.
    
    The attached patch has been proposed to Ubuntu and skips cleanup if
    anything is mounted under the chroot.
    
    [1] https://bugs.launchpad.net/ubuntu/+source/cowdancer/+bug/1156540
    
    --
    Jean-Baptiste
    IRC: jibel

commit 3e3fff14f6ff159d72db50e64f4d171c636f6565
Author: Junichi Uekawa <dancer at netfort.gr.jp>
Date:   Wed Mar 27 07:15:42 2013 +0900

    test update