[Gaim-devel] problems with gaim-based application

[Alexey N. <sn...@gm...>]

Hello.
I am currently continuing my development of gaim-based jabber transport (ea=
rly=20
version is published on xmpppy.sf.net) and have come upon a problem.

About my platform first: I use gnt version of beta6 as a base (actually onl=
y=20
gaim_gnt_io_invoke), all UI effects are disabled. Running it on Debian Sarg=
e=20
so use libglib2.0-0 version 2.6.4-1.

I am experiencing lot of crashes, all of them seems to be in MSN code (but=
=20
that may be just because transport is used mostly for msn) and all look lik=
e=20
data somewhere lept out from the control and overwritten gaim's structures.
Sometimes mess starts from gaim_gnt_io_invoke (that I was unable to remove =
or=20
replace with my own one because of lack of GLib knowledge). It got called=20
with very weird 'condition' argument that is, believing to post-mortem core=
=20
dump analysis, takes completely random values while it should persist in th=
e=20
range 0-63.
Sometimes condition takes sane value but later in stack things looks=20
overwritten nevertheless. (like account: 0xa which is obviously corrupt).

I am asking for a little help with it - can anyone suggest how it may happe=
n?=20
Can it be my bug? msn plugin bug? glib bug? where to start hunting from?

Oh and there was another thing that I suppressed. When trying such setup I=
=20
discovered a lot of HUP signals coming up to my python wrapper when I tryin=
g=20
to execute g_main_context_iteration. So I put "try: except:" block around i=
t=20
to just ignore them. May be it may have something to do with my problems to=
o?

Thanks in advance.

Here is example of such crash:
#0  0x400d0363 in strlen () from /lib/tls/libc.so.6
#1  0x4009f681 in vfprintf () from /lib/tls/libc.so.6
#2  0x400c0d96 in vasprintf () from /lib/tls/libc.so.6
#3  0x4091fc87 in g_vasprintf () from /usr/lib/libglib-2.0.so.0
#4  0x40910aa6 in g_strdup_vprintf () from /usr/lib/libglib-2.0.so.0
#5  0x40543292 in gaim_debug_vargs (level=3DGAIM_DEBUG_INFO, category=3D0x4=
066be59=20
"msn",
    format=3D0xbfffc854 "", args=3D0x636f4c30 <Address 0x636f4c30 out of bo=
unds>)=20
at debug.c:59
#6  0x40543509 in gaim_debug_info (category=3D0x636f4c30 <Address 0x636f4c3=
0 out=20
of bounds>,
    format=3D0x0) at debug.c:124
#7  0x40666158 in xfr_error (cmdproc=3D0xb74eca8, trans=3D0x0, error=3D0) a=
t=20
switchboard.c:1136
#8  0x40651b78 in msn_cmdproc_process_cmd (cmdproc=3D0xb74eca8, cmd=3D0x406=
660e0)=20
at cmdproc.c:281
#9  0x40651d43 in msn_cmdproc_process_cmd_text (cmdproc=3D0xb74eca8,=20
command=3D0xb924af4 "800 307")
    at cmdproc.c:335
#10 0x40660045 in read_cb (data=3D0xbbcccb8, source=3D21, cond=3DGAIM_INPUT=
_READ) at=20
servconn.c:445
#11 0x404f077d in gaim_gnt_io_invoke (source=3D0x636f4c30, condition=3D1668=
238384,=20
data=3D0x9b260a0)
    at gntgaim.c:138
#12 0x4091fdbf in g_vasprintf () from /usr/lib/libglib-2.0.so.0
#13 0x408fa582 in g_main_depth () from /usr/lib/libglib-2.0.so.0
#14 0x408fb5f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0x408fb930 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0x408fbb7d in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#17 0x404f0c62 in pygaim__process (self=3D0x0, args=3D0x636f4c30) at=20
generated.c:198
#18 0x080fde6a in PyCFunction_Call ()
#19 0x080ab834 in PyEval_CallObjectWithKeywords ()
#20 0x080a9bee in Py_MakePendingCalls ()
#21 0x080aa77c in PyEval_EvalCodeEx ()
#22 0x080acf79 in PyEval_EvalCode ()
#23 0x080cc126 in PyImport_ExecCodeModuleEx ()
#24 0x080cef63 in PyImport_ExtendInittab ()
#25 0x080ccc6e in PyImport_ExecCodeModuleEx ()
#26 0x080cdb68 in PyImport_ImportModule ()
#27 0x080cd693 in PyImport_ImportModule ()
#28 0x080cf729 in PyImport_ExtendInittab ()
#29 0x080ce79c in PyImport_ImportModuleEx ()
#30 0x080a0d01 in _PyBuiltin_Init ()
#31 0x080fde6a in PyCFunction_Call ()
#32 0x0805b989 in PyObject_Call ()
#33 0x080ab5c7 in PyEval_CallObjectWithKeywords ()
#34 0x080a9977 in Py_MakePendingCalls ()
#35 0x080aa77c in PyEval_EvalCodeEx ()
#36 0x080acf79 in PyEval_EvalCode ()
#37 0x080d90db in PyRun_FileExFlags ()
#38 0x080d885f in PyRun_SimpleFileExFlags ()
#39 0x08054e95 in Py_Main ()
#40 0x080549eb in main ()

Here is several more examples. I have cut out all below gaim_gnt_io_invoke=
=20
because it is identical
#0  0x00000011 in ?? ()
#1  0x4065f715 in msn_servconn_destroy (servconn=3D0xa88ada0) at servconn.c=
:74
#2  0x4065f9f6 in connect_cb (data=3D0xa88ada0, source=3D17, error_message=
=3D0x0) at=20
servconn.c:181
#3  0x4055a1e2 in gaim_proxy_connect_data_connected (connect_data=3D0xae4bf=
50)=20
at proxy.c:372
#4  0x4055a2b8 in socket_ready_cb (data=3D0xae4bf50, source=3D128,=20
cond=3DGAIM_INPUT_WRITE)
    at proxy.c:421
#5  0x404f077d in gaim_gnt_io_invoke (source=3D0x11, condition=3D17,=20
data=3D0xa88ab10) at gntgaim.c:138
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
#0  0x400d033b in strlen () from /lib/tls/libc.so.6
#1  0x4009f681 in vfprintf () from /lib/tls/libc.so.6
#2  0x400c0d96 in vasprintf () from /lib/tls/libc.so.6
#3  0x4091fc87 in g_vasprintf () from /usr/lib/libglib-2.0.so.0
#4  0x40910aa6 in g_strdup_vprintf () from /usr/lib/libglib-2.0.so.0
#5  0x40543292 in gaim_debug_vargs (level=3DGAIM_DEBUG_INFO, category=3D0x4=
066be59=20
"msn",
    format=3D0xbfffc854 "", args=3D0x11 <Address 0x11 out of bounds>) at=20
debug.c:59
#6  0x40543509 in gaim_debug_info (category=3D0x11 <Address 0x11 out of bou=
nds>,=20
format=3D0x0)
    at debug.c:124
#7  0x40666158 in xfr_error (cmdproc=3D0x9655fd0, trans=3D0x0, error=3D1) a=
t=20
switchboard.c:1136
#8  0x40651b78 in msn_cmdproc_process_cmd (cmdproc=3D0x9655fd0, cmd=3D0x406=
660e0)=20
at cmdproc.c:281
#9  0x40651d43 in msn_cmdproc_process_cmd_text (cmdproc=3D0x9655fd0,=20
command=3D0x9d6f4ed "800 222")
    at cmdproc.c:335
#10 0x40660045 in read_cb (data=3D0x908cd00, source=3D51, cond=3DGAIM_INPUT=
_READ) at=20
servconn.c:445
#11 0x404f077d in gaim_gnt_io_invoke (source=3D0x11, condition=3D17,=20
data=3D0x9965a38) at gntgaim.c:138
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
#0  0x4065fbdc in msn_servconn_disconnect (servconn=3D0x9aab270) at=20
servconn.c:262
#1  0x4065f71f in msn_servconn_destroy (servconn=3D0x9aab270) at servconn.c=
:71
#2  0x4065f9f6 in connect_cb (data=3D0x9aab270, source=3D1, error_message=
=3D0x0) at=20
servconn.c:181
#3  0x4055a1e2 in gaim_proxy_connect_data_connected (connect_data=3D0xcded2=
28)=20
at proxy.c:372
#4  0x4055a2b8 in socket_ready_cb (data=3D0xcded228, source=3D43,=20
cond=3DGAIM_INPUT_WRITE)
    at proxy.c:421
#5  0x404f077d in gaim_gnt_io_invoke (source=3D0x1, condition=3DG_IO_IN,=20
data=3D0xb53d2b8)
    at gntgaim.c:138
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
#0  0x40662adb in msn_slplink_destroy (slplink=3D0xde69b08) at slplink.c:105
#1  0x4066455a in msn_switchboard_destroy (swboard=3D0xdf4f030) at=20
switchboard.c:86
#2  0x406662c6 in msn_switchboard_close (swboard=3D0xdf4f030) at=20
switchboard.c:1178
#3  0x40664c3b in swboard_error_helper (swboard=3D0xdf4f030, reason=3D5,
    passport=3D0x40913150 "U\211=E5\213M\bV\017=BE1\205=F6t2A\017=B6\021\20=
4=D2t*\215v")=20
at switchboard.c:343
#4  0x40651b78 in msn_cmdproc_process_cmd (cmdproc=3D0xdb485f0, cmd=3D0x406=
660e0)=20
at cmdproc.c:281
#5  0x40651d43 in msn_cmdproc_process_cmd_text (cmdproc=3D0xdb485f0,=20
command=3D0xeefff38 "800 225")
    at cmdproc.c:335
#6  0x40660045 in read_cb (data=3D0xc8d41f8, source=3D184, cond=3DGAIM_INPU=
T_READ)=20
at servconn.c:445
#7  0x404f077d in gaim_gnt_io_invoke (source=3D0xde69b08, condition=3D23321=
6776,=20
data=3D0xd2e8318)
    at gntgaim.c:138
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D
=2D-=20
Respectfully
Alexey Nezhdanov