Re: plpython crash (PG 92)

FYI,
I have observed this crash on Linux64. Thanks.

Best Regards,
Muhammad Asif Naeem

On Thu, Apr 26, 2012 at 5:32 PM, Asif Naeem <asif(dot)naeem(at)enterprisedb(dot)com>wrote:

> Hi,
>
> PFA test case. It used simple select statement to retrieve data via
> plpython. It crashes latest pg 9.2 with the following stack trace i.e.
>
> #0 0x000000000073021f in pfree ()
>> #1 0x00007fa74b632f7a in PLy_result_dealloc () from
>> /home/masif/work/postgresql/postgresql/inst/lib/plpython2.so
>> #2 0x00007fa74b2c710b in iter_iternext (iterator=0x1ad7150) at
>> Objects/iterobject.c:74
>> #3 0x00007fa74b2934db in PyIter_Next (iter=0x1b3c5f0) at
>> Objects/abstract.c:3107
>> #4 0x00007fa74b630245 in PLy_exec_function () from
>> /home/masif/work/postgresql/postgresql/inst/lib/plpython2.so
>> #5 0x00007fa74b630c57 in plpython_call_handler () from
>> /home/masif/work/postgresql/postgresql/inst/lib/plpython2.so
>> #6 0x0000000000583907 in ExecMakeFunctionResult ()
>> #7 0x000000000057f146 in ExecProject ()
>> #8 0x0000000000596740 in ExecResult ()
>> #9 0x000000000057e708 in ExecProcNode ()
>> #10 0x000000000057d582 in standard_ExecutorRun ()
>> #11 0x000000000064f477 in PortalRunSelect ()
>> #12 0x0000000000650778 in PortalRun ()
>> #13 0x000000000064ceca in exec_simple_query ()
>> #14 0x000000000064ddc7 in PostgresMain ()
>> #15 0x000000000060bdd9 in ServerLoop ()
>> #16 0x000000000060e9d7 in PostmasterMain ()
>> #17 0x00000000005ad360 in main ()
>
>
> Apparently it is being crashed because of invalid related pointer value of
> pfree() *header->context->methods->free_p. It is reproducible with latest
> version of python i.e. Python-2.7.3 and Python-3.2.3. Thanks.
>
> Best Regards,
> Muhammad Asif Naeem
>