touch-packages team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

With the version tracking in install_packages(), the changes to
sandboxutils are now trivial. Done in r2849, so if you run from trunk
you can now use this right away.

Please note that for existing sandboxes there is no "packages.txt" yet,
thus the next retraces will re-download/install everything which has
already been installed (but might be too old). To clean up, it's
probably best to purge all the existing sandboxes from the daisy
retracers and start over, to get rid of old cruft.

** Changed in: apport
       Status: In Progress => Fix Released

** Changed in: apport (Ubuntu)
       Status: Triaged => Fix Committed

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https://bugs.launchpad.net/bugs/1352591

Title:
  apport-retrace does not update libraries or executable in a sandbox

Status in Apport crash detection/reporting:
  Fix Released
Status in “apport” package in Ubuntu:
  Fix Committed

Bug description:
  I was trying to retrace a crash that failed with the retracers in the
  Ubuntu Error Tracker.  I'm using gdb-multiarch from the following PPA
  (https://launchpad.net/~daisy-pluckers/+archive/ubuntu/daisy-seeds)
  and apport from bzr revision number 2818. The command follows:

  PYTHONPATH=$PYTHONPATH:/srv/daisy.staging.ubuntu.com/prod
  uction/apport python /srv/daisy.staging.ubuntu.com/production/apport/bin/apport-retrace ~/4d9d6984-1883-11e4-84c3-fa163e22e467.crash -S /srv/da
  isy.staging.ubuntu.com/production/daisy/retracer/config --sandbox-dir /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu\ 14.10/cache-DhmXbj/sandbox -C /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu\ 14.10/cache-DhmXbj/cache -v -g

  With that bt full would return:

  Thread 1 (LWP 2270):
  #0  __libc_do_syscall () at ../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:44
  No locals.
  #1  0xb6a3805e in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
          _a1 = 0
          _a3tmp = 6
          _a1tmp = 0
          _a3 = 6
          _nametmp = 268
          _a2tmp = 2270
          _a2 = 2270
          _name = 268
          _sys_result = <optimized out>
          pd = 0xb680e000
          pid = 0
          selftid = 2270
  #2  0xb6a38d4e in __GI_abort () at abort.c:89
          save_stage = 2
          act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {1, 3064945215, 3064945144, 3064575611, 
                3064342309, 3069180536, 3061899264, 3069180712, 3061899264, 3065241600, 729240, 0, 1, 3199521020, 0, 3069123061, 3069180712, 
                1, 5, 0, 3199521440, 3064036264, 1, 3064946200, 1, 10212828, 3199521044, 3069005824, 3199521440, 3069141488, 10212360, 
                3061900488}}, sa_flags = 2, sa_restorer = 0x0}
          sigs = {__val = {32, 0 <repeats 31 times>}}
  #3  0xb6b892c4 in ?? ()
     from /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu 14.10/cache-DhmXbj/sandbox-corrupt/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
  No symbol table info available.
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)

  However, using apport-retrace without the sandbox-dir command creates
  a more complete backtrace like in http://paste.ubuntu.com/7929061/.

  I've tracked this down to the following from needed_runtime_packages
  in apport/sandboxutils.py:

      # grab as much as we can
      for l in libs:
          if os.path.exists(sandbox + l):
              continue

  There is no check to see if the sandbox version of the library is
  current or not, subsequently the library may be out of date which was
  causing the retrace to fail.

  I've verified this by checking the ctime of the file before and after
  commenting out the "if os.path.exists()" check.

  ls -lch /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu\ 14.10/cache-DhmXbj/sandbox-old/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
  lrwxrwxrwx 1 root root 19 Jul 11 02:19 /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu 14.10/cache-DhmXbj/sandbox-old/usr/lib/arm-linux-gnueabihf/libstdc++.so.6 -> libstdc++.so.6.0.20

  ls -lch /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu\ 14.10/cache-DhmXbj/sandbox-corrupt/usr/lib/arm-linux-gnueabihf/libstdc++.so.6
  lrwxrwxrwx 1 root root 19 Aug  4 22:27 /srv/daisy.staging.ubuntu.com/production/cache/Ubuntu 14.10/cache-DhmXbj/sandbox-old/usr/lib/arm-linux-gnueabihf/libstdc++.so.6 -> libstdc++.so.6.0.20

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