Hi,
I'm using matplotlib on osx leopard (compiled with gcc-4.3) and if I try to
render a simple plot I see lots of these errors:
python(58290) malloc: *** error for object 0xa06026d8: Non-aligned pointer
being freed
*** set a breakpoint in malloc_error_break to debug
I get the following backtrace with gdb:
Breakpoint 1, 0x94458131 in malloc_error_break ()
(gdb) bt
#0 0x94458131 in malloc_error_break ()
#1 0x9445311f in szone_error ()
#2 0x94377743 in szone_free ()
#3 0x943775ad in free ()
#4 0x0175c305 in std::string::assign (this=0xbfffa5e0, [EMAIL PROTECTED])
at bits/basic_string.h:236
#5 0x018e6b00 in FT2Font::set_text (this=0x34544d0, [EMAIL PROTECTED],
[EMAIL PROTECTED]) at src/ft2font.cpp:927
#6 0x018ef04c in Py::PythonExtension<FT2Font>::method_keyword_call_handler
(_self_and_name_tuple=0x35819e0, _args=0x3581a30, _keywords=0x358bd20) at
Extensions.hxx:671
#7 0x001e0211 in PyCFunction_Call (func=0x3581c88, arg=0x3581a30,
kw=0x358bd20) at Objects/methodobject.c:77
#8 0x001a3b51 in PyObject_Call (func=0x3581c88, arg=0x3581a30,
kw=0x358bd20) at Objects/abstract.c:1861
#9 0x00239cc0 in PyEval_EvalFrameEx (f=0x3453370, throwflag=0) at
Python/ceval.c:3784
#10 0x0023d3b5 in PyEval_EvalCodeEx (co=0x1df2848, globals=0x1de0ae0,
locals=0x0, args=0xb753e4, argcount=3, kws=0xb753f0, kwcount=1, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:2836
#11 0x0023bd1d in PyEval_EvalFrameEx (f=0xb75210, throwflag=0) at
Python/ceval.c:3669
#12 0x0023d3b5 in PyEval_EvalCodeEx (co=0x1b50068, globals=0x18ba930,
locals=0x0, args=0x3452914, argcount=2, kws=0x345291c, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:2836
#13 0x0023bd1d in PyEval_EvalFrameEx (f=0x34527a0, throwflag=0) at
Python/ceval.c:3669
#14 0x0023d3b5 in PyEval_EvalCodeEx (co=0x1b500f8, globals=0x18ba930,
locals=0x0, args=0x35819c4, argcount=2, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at Python/ceval.c:2836
#15 0x001c944e in function_call (func=0x1b583f0, arg=0x35819b8, kw=0x0) at
Objects/funcobject.c:517
#16 0x001a3b51 in PyObject_Call (func=0x1b583f0, arg=0x35819b8, kw=0x0) at
Objects/abstract.c:1861
#17 0x001abc4d in instancemethod_call (func=0x1b583f0, arg=0x35819b8,
kw=0x0) at Objects/classobject.c:2519
...
so it seems to come from somewhere within matplotlib. It doesn't seem to be
a major issue, since the program continues fine, and the plot is rendered
correctly.
Any ideas on how to fix it?
thanks
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