[Bug 1189322] Re: rsyslog update fails, stalling apt-get dist-upgrade

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: rsyslog (Ubuntu)
       Status: New => Confirmed

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Title:
  rsyslog update fails, stalling apt-get dist-upgrade

Status in rsyslog package in Ubuntu:
  Confirmed

Bug description:
  I tried to update my saucy i386 VM and found rsyslog upgrade stopped
  the process three times:

  ...
  Setting up libfriends0 (0.1.2daily13.06.07-0ubuntu1) ...
  Setting up python-ubuntu-sso-client (13.05-0ubuntu1) ...
  Setting up python-ubuntuone-storageprotocol (13.05-0ubuntu1) ...
  Setting up ubuntu-sso-client (13.05-0ubuntu1) ...
  Setting up ubuntu-sso-client-qt (13.05-0ubuntu1) ...
  Setting up rsyslog (5.8.11-2ubuntu4) ...
  debconf: unable to initialize frontend: Dialog
  debconf: (TERM is not set, so the dialog frontend is not usable.)
  debconf: falling back to frontend: Readline
  debconf: unable to initialize frontend: Readline
  debconf: (This frontend requires a controlling tty.)
  debconf: falling back to frontend: Teletype
  Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd

  [stops here]

  
  dmesg output shows the AppArmor profiles replaced fine:

  ...
  [    4.433310] init: plymouth-splash main process (1040) terminated with status 1
  [  105.761223] systemd-udevd[7041]: starting version 204
  [  304.114794] audit_printk_skb: 54 callbacks suppressed
  [  304.114801] type=1400 audit(1370835269.057:29): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=7909 comm="apparmor_parser"
  [  304.115796] type=1400 audit(1370835269.057:30): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=7909 comm="apparmor_parser"

  
  pstree shows that the postinst script is trying to stop rsyslogd:
       ├─sshd─┬─sshd───bash───apt-get───dpkg───rsyslog.postins───invoke-rc.d───stop

  
  The 'stop' appears stuck waiting for a syscall to resume:

  sarnold at sec-saucy-i386:~$ ps auxw | grep -e invoke -e stop
  root      7711  0.0  0.0   2268   592 ?        S    20:31   0:00 /bin/sh /usr/sbin/invoke-rc.d rsyslog restart
  root      7739  0.0  0.1   4980  1072 ?        S    20:31   0:00 stop rsyslog
  sarnold   8617  0.0  0.1   4444   804 pts/0    S+   20:59   0:00 grep --color=auto -e invoke -e stop
  sarnold at sec-saucy-i386:~$ sudo strace -p 7711
  Process 7711 attached - interrupt to quit
  wait4(-1, ^C <unfinished ...>
  Process 7711 detached
  sarnold at sec-saucy-i386:~$ sudo strace -p 7739
  Process 7739 attached - interrupt to quit
  restart_syscall(<... resuming interrupted call ...>^C <unfinished ...>
  Process 7739 detached

  
  Killing 7739 does not cause the upgrade to resume. Killing 7711 does cause the upgrade to resume.

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: rsyslog 5.8.11-2ubuntu4
  ProcVersionSignature: User Name 3.9.0-3.8-generic 3.9.4
  Uname: Linux 3.9.0-3-generic i686
  ApportVersion: 2.10.2-0ubuntu1
  Architecture: i386
  Date: Sun Jun  9 20:54:24 2013
  InstallationDate: Installed on 2013-02-26 (104 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130225)
  MarkForUpload: True
  ProcEnviron:
   TERM=rxvt-unicode
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: rsyslog
  UpgradeStatus: No upgrade log present (probably fresh install)

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