Tom Lane escreveu:
> Alvaro Herrera <[email protected]> writes:
>> ... However, on HEAD this is crashing for me, and it's right when plpython
>> loads. Backtrace below.
>
> Does plpython pass its regression tests for you (I'd suppose not)?
>
> For me on Fedora 10 x86_64, CVS HEAD plus python 2.5.2 passes regression
> but the given example still dumps core. postmaster log says
>
> postgres: tgl regression [local] SELECT: Objects/stringobject.c:107:
> PyString_FromString: Assertion `str != ((void *)0)' failed.
> LOG: server process (PID 4714) was terminated by signal 6: Aborted
> LOG: terminating any other active server processes
>
PyString_FromString() [1] fails to return something useful, i.e, null pointer
when its argument is null. The trivial fix (that is attached) is to ensure
that we don't pass a null pointer as the second argument of
PyDict_SetItemString(). Of course, it's a Python bug and I filled it [3].
>> Obviously I don't know Python to fix it :-)
>
> Me either. Something is pretty bad in python-land, it seems.
>
Me either. ;)
[1]
http://svn.python.org/view/python/trunk/Objects/stringobject.c?revision=70682&view=markup
[2]
http://svn.python.org/view/python/trunk/Objects/dictobject.c?revision=70550&view=markup
[3] http://bugs.python.org/issue5627
--
Euler Taveira de Oliveira
http://www.timbira.com/
Index: plpython.c
===================================================================
RCS file: /a/pgsql/dev/anoncvs/pgsql/src/pl/plpython/plpython.c,v
retrieving revision 1.118
diff -c -r1.118 plpython.c
*** plpython.c 15 Jan 2009 13:49:56 -0000 1.118
--- plpython.c 31 Mar 2009 16:48:47 -0000
***************
*** 1053,1059 ****
}
if (PyList_SetItem(args, i, arg) == -1 ||
! (proc->argnames &&
PyDict_SetItemString(proc->globals,
proc->argnames[i], arg) == -1))
PLy_elog(ERROR, "PyDict_SetItemString() failed
for PL/Python function \"%s\" while setting up arguments", proc->proname);
arg = NULL;
--- 1053,1059 ----
}
if (PyList_SetItem(args, i, arg) == -1 ||
! (proc->argnames && proc->argnames[i] != NULL &&
PyDict_SetItemString(proc->globals,
proc->argnames[i], arg) == -1))
PLy_elog(ERROR, "PyDict_SetItemString() failed
for PL/Python function \"%s\" while setting up arguments", proc->proname);
arg = NULL;
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