Bug 1200340

Description of problem:
Observed dbus exception after subscription removal on the guest machine. Also a crash report was available on the machine

Version-Release number of selected component (if applicable):
# subscription-manager version
server type: Red Hat Subscription Management
subscription management server: 0.9.45-1
subscription management rules: 5.14
subscription-manager: 1.14.1-1.el6
python-rhsm: 1.14.1-1.el6


How reproducible:
Not always

Steps to Reproduce:
1.# subscription-manager list --consumed
+-------------------------------------------+
   Consumed Subscriptions
+-------------------------------------------+
Subscription Name:   Awesome OS Virtual Datacenter
Provides:            Awesome OS Server Bits
SKU:                 awesomeos-virt-datacenter
Contract:            3
Account:             12331131231
Serial:              907046992398743178
Pool ID:             ff8080814be9bfc9014c033f7c9b2908
Provides Management: No
Active:              True
Quantity Used:       1
Service Level:       
Service Type:        
Status Details:      Subscription is current
Subscription Type:   Standard
Starts:              03/04/2015
Ends:                03/03/2016
System Type:         Virtual

2 # subscription-manager remove --all
1 subscription removed at the server.
1 local certificate has been deleted.
Traceback (most recent call last):
  File "/usr/share/rhsm/subscription_manager/dbus_interface.py", line 59, in emit_status
    self.validity_iface.emit_status()
  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/python2.6/site-packages/dbus/connection.py", line 630, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)


Actual results:
observed dbus exceptions on the machine


Additional info:
crash report details
------------------

[root@dhcp47-182 entitlement]# mail
Heirloom Mail version 12.4 7/29/08.  Type ? for help.
"/var/spool/mail/root": 7 messages 1 new 3 unread
    1 ABRT Daemon           Mon Mar  9 09:21 114/5191  "[abrt] a crash has been detected"
    2 ABRT Daemon           Tue Mar 10 04:49 114/5197  "[abrt] a crash has been detected again"
 U  3 ABRT Daemon           Tue Mar 10 05:49 114/5196  "[abrt] a crash has been detected again"
 U  4 ABRT Daemon           Tue Mar 10 05:57 114/5196  "[abrt] a crash has been detected again"
    5 ABRT Daemon           Tue Mar 10 06:07 114/5197  "[abrt] a crash has been detected again"
    6 ABRT Daemon           Tue Mar 10 06:23 114/5197  "[abrt] a crash has been detected again"
>N  7 ABRT Daemon           Tue Mar 10 06:39 113/5186  "[abrt] a crash has been detected again"
& 7
Message  7:
From DoNotReply.bos.redhat.com  Tue Mar 10 06:39:15 2015
Return-Path: <DoNotReply.bos.redhat.com>
X-Original-To: root@localhost
Delivered-To: root.bos.redhat.com
Date: Tue, 10 Mar 2015 06:39:15 -0400
From: ABRT Daemon <DoNotReply.bos.redhat.com>
To: root.bos.redhat.com
Subject: [abrt] a crash has been detected again
User-Agent: Heirloom mailx 12.4 7/29/08
Content-Type: text/plain; charset=us-ascii
Status: R

abrt_version:   2.0.8
cmdline:        /usr/bin/python -S /usr/sbin/subscription-manager remove --all
executable:     /usr/sbin/subscription-manager
hostname:       dhcp47-182.lab.bos.redhat.com
kernel:         2.6.32-540.el6.x86_64
last_occurrence: 1425983955
machineid:      sosreport_uploader-dmidecode=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
pkg_arch:       x86_64
pkg_epoch:      0
pkg_name:       subscription-manager
pkg_release:    1.el6
pkg_version:    1.14.1
time:           Mon 09 Mar 2015 09:21:37 AM EDT
uid:            0
username:       root

backtrace:
:connection.py:630:call_blocking:DBusException: org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
:
:Traceback (most recent call last):
:  File "/usr/share/rhsm/subscription_manager/dbus_interface.py", line 59, in emit_status
:    self.validity_iface.emit_status()
:  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 68, in __call__
:    return self._proxy_method(*args, **keywords)
:  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 140, in __call__
:    **keywords)
:  File "/usr/lib/python2.6/site-packages/dbus/connection.py", line 630, in call_blocking
:    message, timeout)
:DBusException: org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
:
:Local variables in innermost frame:
:byte_arrays: False
:self: <dbus._dbus.SystemBus (system) at 0x2cdf2f0>
:args: ()
:utf8_strings: False
:bus_name: 'com.redhat.SubscriptionManager'
:get_args_opts: {'byte_arrays': False, 'utf8_strings': False}
:object_path: '/EntitlementStatus'
:timeout: -1.0
:signature: ''
:dbus_interface: 'com.redhat.SubscriptionManager.EntitlementStatus'
:message: <dbus.lowlevel.MethodCallMessage object at 0x7f5d703958e8>
:method: 'emit_status'

event_log:
:/usr/libexec/abrt-action-generate-machine-id:113: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
:  .format(sd, ex.message))
:Machine-ID generator 'systemd' failed: Could not use systemd's machine-id: [Errno 2] No such file or directory: '/etc/machine-id'
:
:** COLLECTED WARNINGS **
:Failed to open memory buffer (/dev/mem): Permission denied
:No SMBIOS nor DMI entry point found, sorry.
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:Permission denied to memory file/device (/dev/mem)
:** END OF WARNINGS **