[Bug 1298782] Re: apport-gtk segfaults on attempting to report a bug

[AdamQ]

I have seen this too and just in the last few minutes ironically when
firefox opened this page!

I noticed the comment on nvidia so have just removed the quaddro card to
see if it's going to go away.

Three crashes in 2 days - and it takes down the whole machine, no
possibility of <ALT>F1 to check things or do a graceful shutdown.

from kern.log:

Feb 23 13:02:18 ubuntu kernel: [90912.228984] type=1400 audit(1456232538.215:105): apparmor="DENIED" operation="open" profile="/usr/lib/telepathy/mission-control-5" name="/home/zzz/.mission-control/accounts/accounts.cfg" pid=31146 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1474 ouid=0
Feb 23 13:02:55 ubuntu kernel: [90949.653160] apport-gtk[31229]: segfault at 0 ip 00007f167d2e45a7 sp 00007ffd28664bf8 error 4 in libgtk-3.so.0.1000.8[7f167d1cf000+500000]

and
Feb 24 10:35:47 ubuntu kernel: [  303.002391] type=1400 audit(1456310147.335:100): apparmor="DENIED" operation="open" profile="/usr/lib/telepathy/mission-control-5" name="/home/xxx/.mission-control/accounts/accounts.cfg" pid=2447 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1474 ouid=0
Feb 24 10:36:05 ubuntu kernel: [  321.119478] apport-gtk[2429]: segfault at 0 ip 00007fe8e3dfd5a7 sp 00007ffd6c806738 error 4 in libgtk-3.so.0.1000.8[7fe8e3ce8000+500000]
Feb 24 10:36:13 ubuntu kernel: [  328.787260] apport-gtk[2431]: segfault at 0 ip 00007fbe0c0295a7 sp 00007ffda0ec9e18 error 4 in libgtk-3.so.0.1000.8[7fbe0bf14000+500000]
Feb 24 10:36:17 ubuntu kernel: [  332.878827] apport-gtk[2433]: segfault at 0 ip 00007f7554cb95a7 sp 00007ffe61145588 error 4 in libgtk-3.so.0.1000.8[7f7554ba4000+500000]
Feb 24 10:36:29 ubuntu kernel: [  345.453995] apport-gtk[2448]: segfault at 0 ip 00007f833c4c55a7 sp 00007ffdce908778 error 4 in libgtk-3.so.0.1000.8[7f833c3b0000+500000]
Feb 24 10:36:42 ubuntu kernel: [  358.063111] apport-gtk[2456]: segfault at 0 ip 00007f2defa665a7 sp 00007ffc94175998 error 4 in libgtk-3.so.0.1000.8[7f2def951000+500000]
Feb 24 10:36:50 ubuntu kernel: [  365.697123] apport-gtk[2707]: segfault at 0 ip 00007f60b3b995a7 sp 00007ffdc1cf6048 error 4 in libgtk-3.so.0.1000.8[7f60b3a84000+500000]
Feb 24 10:46:19 ubuntu kernel: [  935.826821] type=1400 audit(1456310779.895:101): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=4527 comm="apparmor_parser"
Feb 24 10:46:19 ubuntu kernel: [  935.826827] type=1400 audit(1456310779.895:102): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=4527 comm="apparmor_parser"
Feb 24 10:46:19 ubuntu kernel: [  935.827157] type=1400 audit(1456310779.895:103): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=4527 comm="apparmor_parser"
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24 11:19:28 ubuntu kernel: [    0.000000] Initializing cgroup subsys cpuset
Feb 24 11:19:28 ubuntu kernel: [    0.000000] Initializing cgroup subsys cpu
Feb 24 11:19:28 ubuntu kernel: [    0.000000] Initializing cgroup subsys cpuacct
Feb 24 11:19:28 ubuntu kernel: [    0.000000] Linux version 3.13.0-79-generic (buildd at lcy01-24) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #123-Ubuntu SMP Fri Feb 19 14:27:58 UTC 2016 (Ubuntu 3.13.0-79.123-generic 3.13.11-ckt33)

I've never seen a bunch of NULLs before in a sys log!

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https://bugs.launchpad.net/bugs/1298782

Title:
  apport-gtk segfaults on attempting to report a bug

Status in apport package in Ubuntu:
  Confirmed

Bug description:
  * Pretty new install off of 14.04 install media, very few non-default packages installed (however one of them is a newer version of firefox)
  * Tried to report a bug on a package, for example:

  ubuntu-bug ubuntu-bug

  results in:

  Segmentation fault (core dumped)

  debugging with pdb results in

  themusicgod1 at snowden:/usr/share/apport$ pdb ./apport-gtk ubuntu-bug
  > /usr/share/apport/apport-gtk(3)<module>()
  -> '''GTK Apport user interface.'''
  (Pdb) next
  > /usr/share/apport/apport-gtk(14)<module>()
  -> import os.path, sys, subprocess, os, re, errno
  (Pdb) next
  > /usr/share/apport/apport-gtk(16)<module>()
  -> from gi.repository import GObject, GLib, Wnck, GdkX11, Gdk
  (Pdb) next
  ^[[A> /usr/share/apport/apport-gtk(17)<module>()
  -> try:
  (Pdb) next
  > /usr/share/apport/apport-gtk(18)<module>()
  -> from gi.repository import Gtk
  (Pdb) next
  > /usr/share/apport/apport-gtk(24)<module>()
  -> import apport
  (Pdb) next
  ImportError: 'No module named apport'
  > /usr/share/apport/apport-gtk(24)<module>()
  -> import apport
  (Pdb) next
  --Return--
  > /usr/share/apport/apport-gtk(24)<module>()->None
  -> import apport
  (Pdb) next
  ImportError: 'No module named apport'
  > <string>(1)<module>()->None
  (Pdb) next
  --Return--
  > <string>(1)<module>()->None
  (Pdb) next
  Traceback (most recent call last):
    File "/usr/lib/python2.7/pdb.py", line 1314, in main
      pdb._runscript(mainpyfile)
    File "/usr/lib/python2.7/pdb.py", line 1233, in _runscript
      self.run(statement)
    File "/usr/lib/python2.7/bdb.py", line 400, in run
      exec cmd in globals, locals
    File "<string>", line 1, in <module>
    File "./apport-gtk", line 24, in <module>
      import apport
  ImportError: No module named apport
  Uncaught exception. Entering post mortem debugging

  Doesn't seem to matter if it's root or regular user:

  root at snowden:/usr/share/apport# ./apport-gtk ubuntu-bug
  Segmentation fault (core dumped)

  * When programs crash it seems like the 'would you like to report a problem' comes up, but when run on the cli it just seems to segfault.
  * I did not see any core file.

  Apport.log :
  ERROR: apport (pid 3520) Thu Mar 27 21:32:12 2014: another apport instance is already running, aborting
  ERROR: apport (pid 3508) Thu Mar 27 21:32:13 2014: called for pid 2142, signal 11, core limit 0
  ERROR: apport (pid 3508) Thu Mar 27 21:32:13 2014: executable: /usr/lib/unity/unity-panel-service (command line "/usr/lib/unity/unity-panel-service")
  ERROR: apport (pid 3508) Thu Mar 27 21:32:40 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 3508) Thu Mar 27 21:34:29 2014: wrote report /var/crash/_usr_lib_unity_unity-panel-service.1000.crash
  ERROR: apport (pid 3563) Thu Mar 27 21:34:54 2014: called for pid 3546, signal 11, core limit 0
  ERROR: apport (pid 3563) Thu Mar 27 21:34:54 2014: executable: /usr/lib/i386-linux-gnu/indicator-session/indicator-session-service (command line "/usr/lib/i386-linux-gnu/indicator-session/indicator-session-service")
  ERROR: apport (pid 3563) Thu Mar 27 21:35:02 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 3563) Thu Mar 27 21:35:34 2014: wrote report /var/crash/_usr_lib_i386-linux-gnu_indicator-session_indicator-session-service.1000.crash
  ERROR: apport (pid 3862) Thu Mar 27 21:40:07 2014: called for pid 3654, signal 11, core limit 0
  ERROR: apport (pid 3862) Thu Mar 27 21:40:08 2014: executable: /usr/lib/i386-linux-gnu/indicator-session/indicator-session-service (command line "/usr/lib/i386-linux-gnu/indicator-session/indicator-session-service")
  ERROR: apport (pid 3862) Thu Mar 27 21:40:11 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 3862) Thu Mar 27 21:41:22 2014: wrote report /var/crash/_usr_lib_i386-linux-gnu_indicator-session_indicator-session-service.1000.crash
  ERROR: apport (pid 16350) Fri Mar 28 00:14:04 2014: called for pid 16340, signal 11, core limit 0
  ERROR: apport (pid 16350) Fri Mar 28 00:14:04 2014: script: /usr/share/oneconf/oneconf-service, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/oneconf/oneconf-service")
  ERROR: apport (pid 16350) Fri Mar 28 00:14:04 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 16350) Fri Mar 28 00:14:18 2014: wrote report /var/crash/_usr_share_oneconf_oneconf-service.1000.crash
  ERROR: apport (pid 16361) Fri Mar 28 00:14:21 2014: called for pid 16356, signal 11, core limit 0
  ERROR: apport (pid 16361) Fri Mar 28 00:14:21 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk")
  ERROR: apport (pid 16361) Fri Mar 28 00:14:21 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 16361) Fri Mar 28 00:14:37 2014: wrote report /var/crash/_usr_share_apport_apport-gtk.1000.crash
  ERROR: apport (pid 16371) Fri Mar 28 00:14:39 2014: called for pid 16367, signal 11, core limit 0
  ERROR: apport (pid 16371) Fri Mar 28 00:14:39 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk")
  ERROR: apport (pid 16371) Fri Mar 28 00:14:39 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 16371) Fri Mar 28 00:14:39 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17203) Fri Mar 28 01:02:05 2014: called for pid 17181, signal 11, core limit 0
  ERROR: apport (pid 17203) Fri Mar 28 01:02:05 2014: script: /usr/share/oneconf/oneconf-service, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/oneconf/oneconf-service")
  ERROR: apport (pid 17203) Fri Mar 28 01:02:05 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17203) Fri Mar 28 01:02:05 2014: apport: report /var/crash/_usr_share_oneconf_oneconf-service.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17815) Fri Mar 28 01:15:16 2014: called for pid 17810, signal 11, core limit 0
  ERROR: apport (pid 17815) Fri Mar 28 01:15:16 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk xul-ext-ubufox")
  ERROR: apport (pid 17815) Fri Mar 28 01:15:17 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17815) Fri Mar 28 01:15:17 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17825) Fri Mar 28 01:15:26 2014: called for pid 17821, signal 11, core limit 0
  ERROR: apport (pid 17825) Fri Mar 28 01:15:26 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk xul-ext-ubufox")
  ERROR: apport (pid 17825) Fri Mar 28 01:15:26 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17825) Fri Mar 28 01:15:26 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17837) Fri Mar 28 01:15:40 2014: called for pid 17833, signal 11, core limit 0
  ERROR: apport (pid 17837) Fri Mar 28 01:15:40 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk ubuntu-bug")
  ERROR: apport (pid 17837) Fri Mar 28 01:15:40 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17837) Fri Mar 28 01:15:40 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17859) Fri Mar 28 01:16:31 2014: called for pid 17855, signal 11, core limit 0
  ERROR: apport (pid 17859) Fri Mar 28 01:16:31 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk ubuntu-bug")
  ERROR: apport (pid 17859) Fri Mar 28 01:16:31 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17859) Fri Mar 28 01:16:31 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 17888) Fri Mar 28 01:19:38 2014: called for pid 17884, signal 11, core limit 0
  ERROR: apport (pid 17888) Fri Mar 28 01:19:38 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk apport-bug")
  ERROR: apport (pid 17888) Fri Mar 28 01:19:38 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 17888) Fri Mar 28 01:19:38 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 18002) Fri Mar 28 01:22:02 2014: called for pid 17998, signal 11, core limit 0
  ERROR: apport (pid 18002) Fri Mar 28 01:22:02 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 ./apport-gtk")
  ERROR: apport (pid 18002) Fri Mar 28 01:22:02 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 18002) Fri Mar 28 01:22:19 2014: wrote report /var/crash/_usr_share_apport_apport-gtk.1000.crash
  ERROR: apport (pid 18012) Fri Mar 28 01:22:21 2014: called for pid 18008, signal 11, core limit 0
  ERROR: apport (pid 18012) Fri Mar 28 01:22:21 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk")
  ERROR: apport (pid 18012) Fri Mar 28 01:22:21 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 18012) Fri Mar 28 01:22:21 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 18066) Fri Mar 28 01:23:06 2014: called for pid 18046, signal 11, core limit 0
  ERROR: apport (pid 18066) Fri Mar 28 01:23:06 2014: script: /usr/share/oneconf/oneconf-service, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/oneconf/oneconf-service")
  ERROR: apport (pid 18066) Fri Mar 28 01:23:07 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 18066) Fri Mar 28 01:23:22 2014: wrote report /var/crash/_usr_share_oneconf_oneconf-service.1000.crash
  ERROR: apport (pid 18083) Fri Mar 28 01:23:25 2014: called for pid 18079, signal 11, core limit 0
  ERROR: apport (pid 18083) Fri Mar 28 01:23:25 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 /usr/share/apport/apport-gtk")
  ERROR: apport (pid 18083) Fri Mar 28 01:23:25 2014: debug: session gdbus call: (true,)

  ERROR: apport (pid 18083) Fri Mar 28 01:23:25 2014: apport: report /var/crash/_usr_share_apport_apport-gtk.1000.crash already exists and unseen, doing nothing to avoid disk usage DoS
  ERROR: apport (pid 18115) Fri Mar 28 01:28:07 2014: called for pid 18113, signal 11, core limit 0
  ERROR: apport (pid 18115) Fri Mar 28 01:28:07 2014: script: /usr/share/apport/apport-gtk, interpreted by /usr/bin/python3.4 (command line "/usr/bin/python3 ./apport-gtk ubuntu-bug")
  ERROR: apport (pid 18115) Fri Mar 28 01:28:07 2014: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
  ERROR: apport (pid 18115) Fri Mar 28 01:28:23 2014: wrote report /var/crash/_usr_share_apport_apport-gtk.0.crash

  
  Tried purging and reinstalling apport-gtk, same thing

  
  root at snowden:/usr/share/apport# apt-cache policy apport-gtk
  apport-gtk:
    Installed: 2.13.3-0ubuntu1
    Candidate: 2.13.3-0ubuntu1
    Version table:
   *** 2.13.3-0ubuntu1 0
          500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages
          100 /var/lib/dpkg/status

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