Attachment 1456620 Details for Bug 1598250 – backtrace

backtrace

coredump.txt (text/plain), 9.84 KB, created by Matěj Cepl on 2018-07-04 22:15:06 UTC

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Creator: Matěj Cepl

Created: 2018-07-04 22:15:06 UTC

Size: 9.84 KB

patch

obsolete

>matej@mitmanek: ~$ gdb python
>GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-110.el7
>Copyright (C) 2013 Free Software Foundation, Inc.
>License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>This is free software: you are free to change and redistribute it.
>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>and "show warranty" for details.
>This GDB was configured as "x86_64-redhat-linux-gnu".
>For bug reporting instructions, please see:
><http://www.gnu.org/software/gdb/bugs/>...
>Reading symbols from /usr/bin/python2.7...Reading symbols from /usr/lib/debug/usr/bin/python2.7.debug...done.
>done.
>(gdb) run repro.py
>Starting program: /usr/bin/python repro.py
>[Thread debugging using libthread_db enabled]
>Using host libthread_db library "/lib64/libthread_db.so.1".
><?xml version="1.0"?>
><doc><foo/></doc>
>
>
>Program received signal SIGSEGV, Segmentation fault.
>0x00007ffff03f970b in libxml_serializeNode (self=<optimized out>, args=<optimized out>)
>    at libxml.c:2974
>2974	        if ((doc == NULL) || (doc->type == XML_DOCUMENT_NODE)) {
>(gdb) t a a bt
>
>Thread 1 (Thread 0x7ffff7fc7740 (LWP 17359)):
>#0  0x00007ffff03f970b in libxml_serializeNode (self=<optimized out>, 
>    args=<optimized out>) at libxml.c:2974
>#1  0x00007ffff7af3cf0 in call_function (oparg=<optimized out>, pp_stack=0x7fffffffc300)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:4408
>#2  PyEval_EvalFrameEx (
>    f=f@entry=Frame 0x7ffff065c050, for file /usr/lib64/python2.7/site-packages/libxml2.py, line 408, in serialize (self=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, encoding=None, format=0), throwflag=throwflag@entry=0)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:3040
>#3  0x00007ffff7af603d in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, 
>    locals=locals@entry=0x0, args=<optimized out>, argcount=1, kws=0x7ffff07f0538, 
>    kwcount=0, defs=0x7ffff0658f50, defcount=2, closure=closure@entry=0x0)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:3640
>#4  0x00007ffff7af353c in fast_function (nk=<optimized out>, na=<optimized out>, 
>    n=<optimized out>, pp_stack=0x7fffffffc510, func=<optimized out>)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:4504
>#5  call_function (oparg=<optimized out>, pp_stack=0x7fffffffc510)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:4429
>#6  PyEval_EvalFrameEx (
>    f=f@entry=Frame 0x7ffff07f03b0, for file /usr/lib64/python2.7/site-packages/libxml2.py, line 291, in __str__ (self=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>), throwflag=throwflag@entry=0)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:3040
>#7  0x00007ffff7af603d in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, 
>    locals=locals@entry=0x0, args=args@entry=0x7ffff7e29228, argcount=1, 
>    kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, 
>    defcount=defcount@entry=0, closure=0x0)
>    at /usr/src/debug/Python-2.7.5/Python/ceval.c:3640
>#8  0x00007ffff7a7f978 in function_call (func=<function at remote 0x7ffff0659938>, 
>    arg=(<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>,), 
>    kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/funcobject.c:526
>#9  0x00007ffff7a5aa63 in PyObject_Call (
>    func=func@entry=<function at remote 0x7ffff0659938>, 
>    arg=arg@entry=(<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>,), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
>#10 0x00007ffff7a69a55 in instancemethod_call (func=<function at remote 0x7ffff0659938>, 
>    arg=(<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>,), 
>    kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/classobject.c:2602
>#11 0x00007ffff7a5aa63 in PyObject_Call (
>    func=func@entry=<instancemethod at remote 0x7ffff7f33b40>, arg=arg@entry=(), 
>    kw=<optimized out>) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
>#12 0x00007ffff7aec8f7 in PyEval_CallObjectWithKeywords (
>    func=func@entry=<instancemethod at remote 0x7ffff7f33b40>, arg=(), arg@entry=0x0, 
>    kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4277
>#13 0x00007ffff7a68cb1 in instance_str (inst=0x7ffff7e33cb0)
>    at /usr/src/debug/Python-2.7.5/Objects/classobject.c:955
>#14 0x00007ffff7a95efa in _PyObject_Str (
>    v=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>)
>    at /usr/src/debug/Python-2.7.5/Objects/object.c:430
>---Type <return> to continue, or q <return> to quit---
>#15 0x00007ffff7a95fca in PyObject_Str (v=<optimized out>)
>    at /usr/src/debug/Python-2.7.5/Objects/object.c:451
>#16 0x00007ffff7a96165 in internal_print (
>    op=op@entry=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, fp=0x7ffff70e4400 <_IO_2_1_stdout_>, flags=flags@entry=1, nesting=nesting@entry=0)
>    at /usr/src/debug/Python-2.7.5/Objects/object.c:303
>#17 0x00007ffff7a961d7 in PyObject_Print (
>    op=op@entry=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, fp=<optimized out>, flags=flags@entry=1)
>    at /usr/src/debug/Python-2.7.5/Objects/object.c:330
>#18 0x00007ffff7a786eb in file_PyObject_Print (flags=1, f=0x7ffff7fa9150, 
>    op=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>)
>    at /usr/src/debug/Python-2.7.5/Objects/fileobject.c:110
>#19 PyFile_WriteObject (
>    v=v@entry=<xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, 
>    f=f@entry=<file at remote 0x7ffff7fa9150>, flags=flags@entry=1)
>    at /usr/src/debug/Python-2.7.5/Objects/fileobject.c:2588
>#20 0x00007ffff7af1c80 in PyEval_EvalFrameEx (
>    f=f@entry=Frame 0x7ffff7fb0dd0, for file repro.py, line 5, in <module> (), 
>    throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2050
>#21 0x00007ffff7af603d in PyEval_EvalCodeEx (co=co@entry=0x7ffff7eaf1b0, 
>    globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, 
>    locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, 
>    kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, 
>    closure=closure@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3640
>#22 0x00007ffff7af6142 in PyEval_EvalCode (co=co@entry=0x7ffff7eaf1b0, 
>    globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, 
>    locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}) at /usr/src/debug/Python-2.7.5/Python/ceval.c:689
>#23 0x00007ffff7b0f57f in run_mod (mod=<optimized out>, 
>    filename=filename@entry=0x7fffffffd56a "repro.py", 
>    globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, 
>    locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, flags=flags@entry=0x7fffffffce20, arena=arena@entry=0x6baa80)
>    at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:1374
>---Type <return> to continue, or q <return> to quit---
>#24 0x00007ffff7b1073e in PyRun_FileExFlags (fp=fp@entry=0x6cff30, 
>    filename=filename@entry=0x7fffffffd56a "repro.py", start=start@entry=257, 
>    globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, 
>    locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f87b08>, 'libxml2': <module at remote 0x7ffff06461a0>, '__file__': 'repro.py', '__package__': None, 'doc': <xmlDoc(_o=<PyCapsule at remote 0x7ffff7e3c5a0>) at remote 0x7ffff7e33cb0>, '__name__': '__main__', '__doc__': None}, closeit=closeit@entry=1, flags=flags@entry=0x7fffffffce20)
>    at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:1360
>#25 0x00007ffff7b119c9 in PyRun_SimpleFileExFlags (fp=fp@entry=0x6cff30, 
>    filename=filename@entry=0x7fffffffd56a "repro.py", closeit=closeit@entry=1, 
>    flags=flags@entry=0x7fffffffce20)
>    at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:952
>#26 0x00007ffff7b11ee3 in PyRun_AnyFileExFlags (fp=fp@entry=0x6cff30, 
>    filename=filename@entry=0x7fffffffd56a "repro.py", closeit=closeit@entry=1, 
>    flags=flags@entry=0x7fffffffce20)
>    at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:756
>#27 0x00007ffff7b22b7f in Py_Main (argc=<optimized out>, argv=<optimized out>)
>    at /usr/src/debug/Python-2.7.5/Modules/main.c:640
>#28 0x00007ffff6d3f3d5 in __libc_start_main (main=0x400640 <main>, argc=2, 
>    ubp_av=0x7fffffffcfe8, init=<optimized out>, fini=<optimized out>, 
>    rtld_fini=<optimized out>, stack_end=0x7fffffffcfd8) at ../csu/libc-start.c:274
>#29 0x000000000040066e in _start ()
>(gdb)

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Attachments on bug 1598250: 1456620