[Aptitude-devel] Bug#744090: aptitude: Crashes occassionally in TUI if /sys is not mounted: Uncaught exception: Unable to read from stdin: No such file or directory

[Axel Beckert]

Package: aptitude
Version: 0.6.10-1
Severity: normal
Control: found -1 0.6.8.2-1.2

Hi,

To demo the aptitude TUI, I occassionally run it in a fresh chroot
(without my individual settings), usually with "cowbuilder
--login". cowbuilder/pbuilder mounts /proc and /dev/pts, but doesn't
seem to mount /sys.

In such an environment, aptitude crashes occassionally during
interactive usage as follows:

root at nemo2:/# aptitude -u
Uncaught exception: Unable to read from stdin: No such file or directory
root at nemo2:/# 

Some more details:

* Does not crash immediately, but within minutes of normal interactive
  usage.

* "-u" seems not relevant.

* Not sure what exactly triggers it. Seems to also happen when I don't
  touch any keys, but I'm not 100% sure.

* Does not happen if I mount /sys inside the chroot with "mount -t sysfs
  none /sys" beforehand.

* Already happenend with 0.6.8.2-1.2 back in November, but I'm not sure
  if it crashed with the same error message. IIRC it segfaulted back
  then. Didn't have time to investigate back then as it initially
  happened during a presentation.

-- Package-specific info:
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-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (900, 'testing'), (899, 'testing-proposed-updates'), (600, 'stable'), (500, 'proposed-updates'), (200, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 3.14-rc7-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_DK.UTF-8, LC_CTYPE=en_DK.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages aptitude depends on:
ii  aptitude-common           0.6.10-1
ii  libapt-pkg4.12            1.0
ii  libboost-iostreams1.54.0  1.54.0-5
ii  libc6                     2.18-4
ii  libcwidget3               0.5.17-1
ii  libept1.4.12              1.0.12
ii  libgcc1                   1:4.8.2-18
ii  libncursesw5              5.9+20140118-1
ii  libsigc++-2.0-0c2a        2.2.11-3
ii  libsqlite3-0              3.8.4.1-1
ii  libstdc++6                4.8.2-18
ii  libtinfo5                 5.9+20140118-1
ii  libxapian22               1.2.17-1
ii  zlib1g                    1:1.2.8.dfsg-1

Versions of packages aptitude recommends:
pn  apt-xapian-index                <none>
ii  aptitude-doc-en [aptitude-doc]  0.6.10-1
ii  libparse-debianchangelog-perl   1.2.0-1
ii  sensible-utils                  0.0.9

Versions of packages aptitude suggests:
ii  debtags  1.12
ii  tasksel  3.20

-- no debconf information