[Bug 1102507] Re: dbus crashes when networking service is restarted

[Siva]

$sudo service network-manager restart

for the same issue
this worked for me . in 64bit Ubuntu 13.04.

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https://bugs.launchpad.net/bugs/1102507

Title:
  dbus crashes when networking service is restarted

Status in “dbus” package in Ubuntu:
  Confirmed

Bug description:
  on ubuntu 13.04 32 bit , dbus crashes when i do "sudo service networking restart".
  unfortunately, this stops unity as well.
  the computer keyboard became unresponsive and i had to create a folder on the desktop via the mouse context menu, open nautilus through that folder, find compiz in /usr/share/applications and restart unity by doubleclicking compiz.

  ( i think Unity should be in there, not "compiz" )

  this brought back the window decoration and the keyboard, but the
  overall experience was still extremely slow. And the internet didn't
  come back on, even after i started networking again manually, and made
  sure that network-manager is also running, obviously because nm-applet
  had crashed along with dbus.

  Starting nm-applet failed with the error message telling me that dbus is unreachable.
  After a "sudo service dbus status" showed me that dbus had also crashed, i found my way back to a working system quite soon.

  So how to reproduce this bug:
  1. /etc/init.d/networking stop

  Problems you will encounter immediately:
  compiz crashed
  dbus crashed
  unity gone (window management, window decoration, keyboard navigation/typing/capture/focus)
  nm-applet crashed unrecoverable

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