On Thu, 2015-01-08 at 12:11 -0800, Juha Kuikka wrote:
> Hi,
>
> I am running into a problem where libdbus asserts
> dbus_message_get_type() with message = 0.
>
> It seems that when service disconnects due to a new service connecting
> the connman_agent_cancel() gets called to clear all pending requests
> to the agent.
>
> This in turn calls agent_finalize_pending(agent, NULL).
>
> And this in turn calls the pending->callback (request_browser_reply()
> in this case), with NULL reply. This gets passed to
> dbus_message_get_type() and libdbus asserts on it.
>
> Stack:
> #0 0xb6bf5448 in nanosleep () from /lib/libc.so.6
> #1 0xb6ddbb60 in _dbus_sleep_milliseconds (milliseconds=<optimized out>)
> at dbus-sysdeps-unix.c:2814
> #2 0xb6de16e0 in _dbus_abort () at dbus-sysdeps.c:88
> #3 0xb6dcf7f8 in _dbus_warn_check_failed (
> format=0xb6dee000 "arguments to %s() were incorrect, assertion
> \"%s\" failed in file %s line %d.\nThis is normally a bug in some
> application using the D-Bus library.\n") at dbus-internals.c:275
> #4 0xb6db9504 in dbus_message_get_type (message=0x0) at dbus-message.c:1724
> #5 0x000443c8 in request_browser_reply ()
> #6 0x00045c74 in agent_finalize_pending.clone ()
> #7 0x00046694 in connman_agent_cancel ()
> #8 0x0003f7a4 in __connman_service_disconnect ()
> #9 0x00041864 in connect_service ()
> #10 0x00078b18 in process_message.clone ()
> #11 0x00079058 in generic_message ()
> #12 0xb6dc19a8 in _dbus_object_tree_dispatch_and_unlock (tree=0x988f8,
> message=<optimized out>, found_object=<optimized out>)
> at dbus-object-tree.c:1018
> #13 0xb6dab0d4 in dbus_connection_dispatch (connection=0xb0598)
> at dbus-connection.c:4718
> #14 0x0007570c in message_dispatch ()
> #15 0xb6e35edc in g_idle_dispatch () from /usr/lib/libglib-2.0.so.0
> ---Type <return> to continue, or q <return> to quit---
> #16 0xb6e39b98 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
> #17 0xb6e39f10 in g_main_context_iterate.clone ()
> from /usr/lib/libglib-2.0.so.0
> #18 0xb6e3a24c in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
> #19 0x0002fbd4 in main ()
This has been fixed by commit 94d8d9c63cacf1484b02036935cd976b84b5e896
in ConnMan 1.27. You are probably using an older version?
Cheers,
Patrik
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