[Aptitude-devel] Bug#762932: aptitude: in an upgrade with 'U', aptitude chose to downgrade a package

[Vincent Lefevre]

Package: aptitude
Version: 0.6.11-1
Severity: normal

In my latest upgrade with 'U' from the curses interface, aptitude
chose to downgrade gir1.2-evince-3.0 from 3.12.2-1 to 3.4.0-3.1.
Downgrading should never be the default choice.

I've attached the dpkg log excerpt corresponding to this upgrade.

Note that I use the following option:

Aptitude::ProblemResolver::SolutionCost "removals";

so that packages don't get removed.

-- Package-specific info:
Terminal: xterm-debian
$DISPLAY is set.
which aptitude: /usr/bin/aptitude

aptitude version information:
aptitude 0.6.11 compiled at Jun  9 2014 20:46:57
Compiler: g++ 4.8.3
Compiled against:
  apt version 4.12.0
  NCurses version 5.9
  libsigc++ version: 2.2.11
  Gtk+ support disabled.
  Qt support disabled.

Current library versions:
  NCurses version: ncurses 5.9.20140913
  cwidget version: 0.5.17
  Apt version: 4.12.0

aptitude linkage:
	linux-vdso.so.1 (0x00007fff0fdfc000)
	libapt-pkg.so.4.12 => /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12 (0x00007f20447e4000)
	libncursesw.so.5 => /lib/x86_64-linux-gnu/libncursesw.so.5 (0x00007f20445ae000)
	libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f2044383000)
	libsigc-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libsigc-2.0.so.0 (0x00007f204417e000)
	libcwidget.so.3 => /usr/lib/x86_64-linux-gnu/libcwidget.so.3 (0x00007f2043e77000)
	libsqlite3.so.0 => /usr/lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007f2043bb1000)
	libboost_iostreams.so.1.55.0 => /usr/lib/x86_64-linux-gnu/libboost_iostreams.so.1.55.0 (0x00007f2043999000)
	libxapian.so.22 => /usr/lib/libxapian.so.22 (0x00007f2043584000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f2043366000)
	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f204305b000)
	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f2042d5a000)
	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f2042b43000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f204279b000)
	libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f2042598000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f2042393000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f2042178000)
	libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007f2041f68000)
	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f2041d44000)
	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f2041b3c000)
	libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f2041936000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f204518e000)

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages aptitude depends on:
ii  aptitude-common           0.6.11-1
ii  libapt-pkg4.12            1.0.9.1
ii  libboost-iostreams1.55.0  1.55.0+dfsg-3
ii  libc6                     2.19-11
ii  libcwidget3               0.5.17-1
ii  libgcc1                   1:4.9.1-15
ii  libncursesw5              5.9+20140913-1
ii  libsigc++-2.0-0c2a        2.2.11-4
ii  libsqlite3-0              3.8.6-1
ii  libstdc++6                4.9.1-15
ii  libtinfo5                 5.9+20140913-1
ii  libxapian22               1.2.18-1.1

Versions of packages aptitude recommends:
ii  aptitude-doc-en [aptitude-doc]  0.6.11-1
ii  libparse-debianchangelog-perl   1.2.0-1.1
ii  sensible-utils                  0.0.9

Versions of packages aptitude suggests:
ii  apt-xapian-index  0.47
pn  debtags           <none>
ii  tasksel           3.27

-- no debconf information
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