[SciPy-dev] Segmenation fault in flapack.zgesdd

Nils Wagner nwagner at mecha.uni-stuttgart.de
Wed May 18 03:46:17 CDT 2005

Hi all,

The enclosed test program stops with a segmentation fault.

(gdb) run test_zgesdd.py
Starting program: /usr/local/bin/python test_zgesdd.py
[Thread debugging using libthread_db enabled]
[New Thread 1076102528 (LWP 11378)]
numerix Numeric 24.0b2

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1076102528 (LWP 11378)]
0x4018d208 in _int_free () from /lib/tls/libc.so.6
(gdb) bt
#0  0x4018d208 in _int_free () from /lib/tls/libc.so.6
#1  0x4018d5fb in free () from /lib/tls/libc.so.6
#2  0x4030e17b in array_dealloc (self=Variable "self" is not available.
) at Src/arrayobject.c:630
#3  0x407e3b3a in f2py_rout_flapack_zgesdd (capi_self=0x40294638, 
capi_args=0x403fd1ac, capi_keywds=0x0, f2py_func=0x408a71f0 <zgesdd_>)
    at build/src/build/src/scipy/linalg/flapackmodule.c:5753
#4  0x407ee172 in fortran_call (fp=Variable "fp" is not available.
) at build/src/fortranobject.c:277
#5  0x0805928e in PyObject_Call (func=0x40294638, arg=0x403fd1ac, 
kw=0x0) at Objects/abstract.c:1746
#6  0x080c408d in PyEval_EvalFrame (f=0x8196d64) at Python/ceval.c:3755
#7  0x080c7a54 in PyEval_EvalCodeEx (co=0x4027bf20, globals=0x40259824, 
locals=0x40259824, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, 
defcount=0, closure=0x0)
    at Python/ceval.c:2730
#8  0x080c7c85 in PyEval_EvalCode (co=0x4027bf20, globals=0x40259824, 
locals=0x40259824) at Python/ceval.c:484
#9  0x080f63b8 in PyRun_SimpleFileExFlags (fp=0x815e008, 
filename=0xbfffec0f "test_zgesdd.py", closeit=1, flags=0xbfffe904) at 
#10 0x08055857 in Py_Main (argc=1, argv=0xbfffe9c4) at Modules/main.c:484
#11 0x08054f07 in main (argc=2, argv=0xbfffe9c4) at Modules/python.c:23

Any pointer would be appreciated.


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