Re: NetworkManager being killed getting AP properties by dbus

[Dan Williams <dcbw redhat com>]

On Thu, 2010-07-22 at 17:18 -0300, Hugo Melo wrote:
> Hi People,
> I am experiencing a bug in NetworkManager using rhel6:
> As I saw a message asking me to report bugs in the mailing list I came
> here. =)
> uname -a
> Linux localhost.localdomain 2.6.32-44.1.el6.x86_64 #1 SMP Wed Jul 14
> 18:51:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
> hugo REDHAT ~$:rpm -q NetworkManager dbus
> NetworkManager-0.8.1-2.el6.x86_64
> dbus-1.2.24-1.el6.x86_64

You want the version of NM included in Snapshot 8, which is:

NetworkManager-0.8.1-3.el6

Dan

> Here is the backtrace. Unfortunately I don't have the debuginfo
> packages.. After the bt I describe how to reproduce.
> 
> Jul 22 17:07:12 localhost NetworkManager[4632]: <warn> caught signal
> 11. Generating
> backtrace...                                                                                 
> Jul 22 17:07:12 localhost NetworkManager: ******************* START
> **********************************                                                                           
> Jul 22 17:07:13 localhost NetworkManager: [Thread debugging using
> libthread_db
> enabled]                                                                                          
> Jul 22 17:07:13 localhost NetworkManager: [New Thread 0x7ffff4a07710
> (LWP
> 4635)]                                                                                                 
> Jul 22 17:07:13 localhost NetworkManager: 0x00007ffff6dbe05d in
> waitpid ()
> from /lib64/libpthread.so.0                                                                           
> Jul 22 17:07:13 localhost NetworkManager: #0  0x00007ffff6dbe05d in
> waitpid ()
> from /lib64/libpthread.so.0                                                                       
> Jul 22 17:07:13 localhost NetworkManager: #1  0x000000000045673b in
> nm_logging_backtrace
> ()                                                                                      
> Jul 22 17:07:13 localhost NetworkManager: #2  0x000000000043e779 in ??
> ()                                                                                                        
> Jul 22 17:07:13 localhost NetworkManager: #3  <signal handler
> called>                                                                                                            
> Jul 22 17:07:13 localhost NetworkManager: #4  0x0000003fcce0b064 in ??
> ()
> from /usr/lib64/libdbus-glib-1.so.2                                                                    
> Jul 22 17:07:13 localhost NetworkManager: #5  0x0000003fc822a7a3 in
> g_hash_table_foreach ()
> from /lib64/libglib-2.0.so.0                                                         
> Jul 22 17:07:13 localhost NetworkManager: #6  0x0000003fcce0d903 in ??
> ()
> from /usr/lib64/libdbus-glib-1.so.2                                                                    
> Jul 22 17:07:13 localhost NetworkManager: #7  0x0000003fcaa1ccde in ??
> ()
> from /lib64/libdbus-1.so.3                                                                             
> Jul 22 17:07:13 localhost NetworkManager: #8  0x0000003fcaa10a2c in
> dbus_connection_dispatch ()
> from /lib64/libdbus-1.so.3                                                       
> Jul 22 17:07:13 localhost NetworkManager: #9  0x0000003fcce09a55 in ??
> ()
> from /usr/lib64/libdbus-glib-1.so.2                                                                    
> Jul 22 17:07:13 localhost NetworkManager: #10 0x0000003fc8238eee in
> g_main_context_dispatch ()
> from /lib64/libglib-2.0.so.0                                                      
> Jul 22 17:07:13 localhost NetworkManager: #11 0x0000003fc823c918 in ??
> ()
> from /lib64/libglib-2.0.so.0                                                                           
> Jul 22 17:07:13 localhost NetworkManager: #12 0x0000003fc823cd35 in
> g_main_loop_run ()
> from /lib64/libglib-2.0.so.0                                                              
> Jul 22 17:07:13 localhost NetworkManager: #13 0x000000000043fa9b in
> main
> ()                                                                                                      
> Jul 22 17:07:13 localhost
> NetworkManager:                                                                                                                                        
> Jul 22 17:07:13 localhost NetworkManager: Thread 2 (Thread
> 0x7ffff4a07710 (LWP
> 4635)):                                                                                           
> Jul 22 17:07:13 localhost NetworkManager: #0  0x00007ffff6dbd50d in
> read ()
> from /lib64/libpthread.so.0                                                                          
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #1  0x0000003fc8239fbb in ??
> () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #2  0x0000003fc8262044 in ??
> () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #3  0x00007ffff6db67e1 in
> start_thread () from /lib64/libpthread.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #4  0x00007ffff605851d in
> clone () from /lib64/libc.so.6
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager:
> Jul 22 17:07:13 localhost NetworkManager: Thread 1 (Thread
> 0x7ffff7fce7e0 (LWP 4632)):
> Jul 22 17:07:13 localhost NetworkManager: #0  0x00007ffff6dbe05d in
> waitpid () from /lib64/libpthread.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #1  0x000000000045673b in
> nm_logging_backtrace ()
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #2  0x000000000043e779 in ??
> ()
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #3  <signal handler called>
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #4  0x0000003fcce0b064 in ??
> () from /usr/lib64/libdbus-glib-1.so.2
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #5  0x0000003fc822a7a3 in
> g_hash_table_foreach () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #6  0x0000003fcce0d903 in ??
> () from /usr/lib64/libdbus-glib-1.so.2
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #7  0x0000003fcaa1ccde in ??
> () from /lib64/libdbus-1.so.3
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #8  0x0000003fcaa10a2c in
> dbus_connection_dispatch () from /lib64/libdbus-1.so.3
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #9  0x0000003fcce09a55 in ??
> () from /usr/lib64/libdbus-glib-1.so.2
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #10 0x0000003fc8238eee in
> g_main_context_dispatch () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #11 0x0000003fc823c918 in ??
> () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #12 0x0000003fc823cd35 in
> g_main_loop_run () from /lib64/libglib-2.0.so.0
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: #13 0x000000000043fa9b in
> main ()
> Jul 22 17:07:13 localhost NetworkManager: No symbol table info
> available.
> Jul 22 17:07:13 localhost NetworkManager: A debugging session is
> active.
> Jul 22 17:07:13 localhost NetworkManager:
> Jul 22 17:07:13 localhost NetworkManager: #011Inferior 1 [process
> 4632] will be detached.
> Jul 22 17:07:13 localhost NetworkManager:
> Jul 22 17:07:13 localhost NetworkManager: Quit anyway? (y or n)
> [answered Y; input not from terminal]
> Jul 22 17:07:13 localhost NetworkManager: ******************* END
> **********************************
> 
> 
> The code I used for getting access point information using python was:
> 
>  import dbus
> sys_bus = dbus.SystemBus()
> nm = sys_bus.get_object('org.freedesktop.NetworkManager',
> '/org/freedesktop/NetworkManager')
> devices =
> nm.GetDevices(dbus_interface='org.freedesktop.NetworkManager')
> device = sys_bus.get_object('org.freedesktop.NetworkManager',
> devices[1])
> access =
> device.GetAccessPoints(dbus_interface='org.freedesktop.NetworkManager.Device.Wireless')
> ap = sys_bus.get_object('org.freedesktop.NetworkManager', access[0])
> ap_props = dbus.Interface(ap, 'org.freedesktop.DBus.Properties')
> props  = ap_props.GetAll('org.freedesktop.NetworkManager.AccessPoint',
> byte_arrays=True)
> 
> The error message it receives is:
> DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The
> name :1.88 was not provided by any .service files
> 
> If I print ap_props I get:
> >>> str(ap_props)
>  "<Interface <ProxyObject wrapping <dbus._dbus.SystemBus (system) at
> 0x1865cb0> :1.88 /org/freedesktop/NetworkManager/AccessPoint/1 at
> 0x199a190> implementing 'org.freedesktop.DBus.Properties' at
> 0x199a1d0>"
> 
> Is there any other information I can give you?
> Thanks!
> 
> -- 
> -- Hugo Melo
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