[New-bugs-announce] [issue8330] Failures seen in test_gdb on buildbots

[Dave Malcolm]

New submission from Dave Malcolm <dmalcolm at redhat.com>:

http://www.python.org/dev/buildbot/trunk/builders/alpha%20Debian%20trunk/builds/52/steps/test/logs/stdio
shows some failures in test_gdb:

======================================================================
FAIL: test_corrupt_ob_type (test.test_gdb.PrettyPrintTests)
Ensure that a PyObject* with a corrupt ob_type is handled gracefully
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/doko/buildarea/trunk.klose-debian-alpha/build/Lib/test/test_gdb.py", line 361, in test_corrupt_ob_type
    'set op->ob_type=0xDEADBEEF')
  File "/home/doko/buildarea/trunk.klose-debian-alpha/build/Lib/test/test_gdb.py", line 341, in assertSane
    (gdb_repr, gdb_output))
AssertionError: Unexpected gdb representation: '< at remote 0x1202cf5a8>'
Breakpoint 1 at 0x12007a9e8: file Objects/object.c, line 330.
[Thread debugging using libthread_db enabled]

Breakpoint 1, PyObject_Print (op=42, fp=0x200002f87b0, flags=1)
    at Objects/object.c:330
330		return internal_print(op, fp, flags, 0);
#0  PyObject_Print (op=< at remote 0x1202cf5a8>, fp=0x200002f87b0, flags=1)
    at Objects/object.c:330
#1  0x000000012003eaa0 in file_PyObject_Print (op=< at remote 0x1202cf5a8>, f=
    0x20000326280, flags=1) at Objects/fileobject.c:110
#2  0x0000000120045bc8 in PyFile_WriteObject (v=< at remote 0x1202cf5a8>, f=
    <file at remote 0x20000326280>, flags=1) at Objects/fileobject.c:2470
#3  0x000000012010bb90 in PyEval_EvalFrameEx (f=
    Frame 0x1203a0ba0, for file <string>, line 1, in <module> (), throwflag=0)
    at Python/ceval.c:1769
#4  0x00000001201134bc in PyEval_EvalCodeEx (co=0x120305880, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, args=0x0, argcount=0, kws=0x0, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:3253
#5  0x0000000120107294 in PyEval_EvalCode (co=0x120305880, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}) at Python/ceval.c:666
#6  0x0000000120152e08 in run_mod (mod=0x12038b848, filename=
    0x12021cf00 "<string>", globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, flags=0x11f48b4d8, arena=0x1203406b0)
    at Python/pythonrun.c:1340
#7  0x0000000120152c2c in PyRun_StringFlags (str=0x1202b2010 "print 42\n", 
    start=257, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, flags=0x11f48b4d8)
    at Python/pythonrun.c:1303
#8  0x0000000120150f50 in PyRun_SimpleStringFlags (command=
    0x1202b2010 "print 42\n", flags=0x11f48b4d8) at Python/pythonrun.c:962
#9  0x00000001200185a0 in Py_Main (argc=4, argv=0x11f48b6b8)
    at Modules/main.c:525
#10 0x0000000120016e88 in main (argc=4, argv=0x11f48b6b8)
    at ./Modules/python.c:23


======================================================================
FAIL: test_corrupt_tp_name (test.test_gdb.PrettyPrintTests)
Ensure that a PyObject* with a type with corrupt tp_name is handled
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/doko/buildarea/trunk.klose-debian-alpha/build/Lib/test/test_gdb.py", line 372, in test_corrupt_tp_name
    'set op->ob_type->tp_name=0xDEADBEEF')
  File "/home/doko/buildarea/trunk.klose-debian-alpha/build/Lib/test/test_gdb.py", line 341, in assertSane
    (gdb_repr, gdb_output))
AssertionError: Unexpected gdb representation: '42'
Breakpoint 1 at 0x12007a9e8: file Objects/object.c, line 330.
[Thread debugging using libthread_db enabled]

Breakpoint 1, PyObject_Print (op=42, fp=0x200002f87b0, flags=1)
    at Objects/object.c:330
330		return internal_print(op, fp, flags, 0);
#0  PyObject_Print (op=42, fp=0x200002f87b0, flags=1) at Objects/object.c:330
#1  0x000000012003eaa0 in file_PyObject_Print (op=42, f=0x20000326280, flags=1)
    at Objects/fileobject.c:110
#2  0x0000000120045bc8 in PyFile_WriteObject (v=42, f=
    <file at remote 0x20000326280>, flags=1) at Objects/fileobject.c:2470
#3  0x000000012010bb90 in PyEval_EvalFrameEx (f=
    Frame 0x1203a0ba0, for file <string>, line 1, in <module> (), throwflag=0)
    at Python/ceval.c:1769
#4  0x00000001201134bc in PyEval_EvalCodeEx (co=0x120305880, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, args=0x0, argcount=0, kws=0x0, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:3253
#5  0x0000000120107294 in PyEval_EvalCode (co=0x120305880, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}) at Python/ceval.c:666
#6  0x0000000120152e08 in run_mod (mod=0x12038b848, filename=
    0x12021cf00 "<string>", globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, flags=0x11f4174d8, arena=0x1203406b0)
    at Python/pythonrun.c:1340
#7  0x0000000120152c2c in PyRun_StringFlags (str=0x1202b2010 "print 42\n", 
    start=257, globals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, locals=
    {'__builtins__': <module at remote 0x20000337470>, '__name__': '__main__', '__doc__': None, '__package__': None}, flags=0x11f4174d8)
    at Python/pythonrun.c:1303
#8  0x0000000120150f50 in PyRun_SimpleStringFlags (command=
    0x1202b2010 "print 42\n", flags=0x11f4174d8) at Python/pythonrun.c:962
#9  0x00000001200185a0 in Py_Main (argc=4, argv=0x11f4176b8)
    at Modules/main.c:525
#10 0x0000000120016e88 in main (argc=4, argv=0x11f4176b8)
    at ./Modules/python.c:23


----------------------------------------------------------------------
Ran 31 tests in 27.624s

FAILED (failures=2)

----------
assignee: dmalcolm
keywords: buildbot
messages: 102509
nosy: dmalcolm
severity: normal
status: open
title: Failures seen in test_gdb on buildbots
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8330>
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