[PD-dev] pyext crash

[Georg Holzmann]

Hallo Thomas, all!

just playing around with pyext to make a simple remote procedure call I 
have the following problem:
(python script is attached)

when I try to call the method "trigger" from an other program, PD always 
is crashing with the following backtrace:

----------8<----------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1345365072 (LWP 7095)]
0xb6d34602 in pyext::pyext_outlet () from /usr/lib/pd/extra/py.pd_linux
(gdb) bt
#0  0xb6d34602 in pyext::pyext_outlet () from /usr/lib/pd/extra/py.pd_linux
#1  0xb6c57308 in PyCFunction_Call () from /usr/lib/libpython2.3.so.1.0
#2  0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#3  0xb6c8dd4c in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#4  0xb6c91a4a in PyEval_EvalCodeEx () from /usr/lib/libpython2.3.so.1.0
#5  0xb6c44845 in PyFunction_SetClosure () from /usr/lib/libpython2.3.so.1.0
#6  0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#7  0xb6c8f422 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#8  0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#9  0xb6c91a4a in PyEval_EvalCodeEx () from /usr/lib/libpython2.3.so.1.0
#10 0xb6c90b1f in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#11 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#12 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#13 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#14 0xb6c91a4a in PyEval_EvalCodeEx () from /usr/lib/libpython2.3.so.1.0
#15 0xb6c44845 in PyFunction_SetClosure () from /usr/lib/libpython2.3.so.1.0
#16 0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#17 0xb6c314c3 in PyMethod_New () from /usr/lib/libpython2.3.so.1.0
#18 0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#19 0xb6c8b11d in PyEval_CallObjectWithKeywords ()
    from /usr/lib/libpython2.3.so.1.0
#20 0xb6c33c0a in PyInstance_New () from /usr/lib/libpython2.3.so.1.0
#21 0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
---Type <return> to continue, or q <return> to quit---
#22 0xb6c8dd4c in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#23 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#24 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#25 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#26 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#27 0xb6c90da5 in _PyEval_SliceIndex () from /usr/lib/libpython2.3.so.1.0
#28 0xb6c91a4a in PyEval_EvalCodeEx () from /usr/lib/libpython2.3.so.1.0
#29 0xb6c44845 in PyFunction_SetClosure () from /usr/lib/libpython2.3.so.1.0
#30 0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#31 0xb6c314c3 in PyMethod_New () from /usr/lib/libpython2.3.so.1.0
#32 0xb6c29f2a in PyObject_Call () from /usr/lib/libpython2.3.so.1.0
#33 0xb6c8b11d in PyEval_CallObjectWithKeywords ()
    from /usr/lib/libpython2.3.so.1.0
#34 0xb6cbdf71 in PyGC_Collect () from /usr/lib/libpython2.3.so.1.0
#35 0xb7f9fccd in start_thread () from /lib/tls/libpthread.so.0
#36 0xb7f33b0e in clone () from /lib/tls/libc.so.6
(gdb)
-------------8<------------

I gues I am using something in a wrong way, but if I don't try to send 
the number to the outlet (line 31 in xmlrpc_server.py) there is no crash 
(e.g. a simple print in python works fine ...)

Thanks for any hint,
LG
Georg

-- 
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http://grh.mur.at
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