svn commit: r188727 - in stable/7: sys sys/contrib/pf sys/dev/ath/ath_hal sys/dev/cxgb sys/kern sys/modules/sem sys/sys tools/regression/posixsem usr.bin/procstat

[Bruce Simpson]

John Baldwin wrote:
> ...
>   
>> I just tested this and Python 2.5 still dumps core in sem_open() when 
>> called from semlock_new() in _multiprocessing.so, this is with the most 
>> recent back-port of multiprocessing to Python 2.5:
>>     http://pypi.python.org/pypi/multiprocessing
>>     
>
> Do you have a core dump with symbols?  If so, can you get the trace?
>   

Here you are... have runtime ELF symbols but no line numbers.

I had to comment out some stuff in its "setup.py" to persuade the 
_multiprocessing C shim to use sem_open() (remove freebsd7 and/or 
freebsd8 from that file before "python setup.py config" and "python 
setup.py build").

I was running the Doc/includes/mp_benchmarks.py file which ships with 
multiprocessing.

multiprocessing is part of Python 2.6 base now, so likely what is Not OK 
in the backport, would need to be forward-ported when it is happy with 
sem_open() in Python 2.5.

cheers
BMS
-------------- next part --------------
(gdb) bt
#0  0x0000000800a9ec7c in ksem_open () from /lib/libc.so.7
#1  0x0000000800a9504d in sem_open () from /lib/libc.so.7
#2  0x000000080131842c in semlock_new ()
   from /usr/local/lib/python2.5/site-packages/multiprocessing-2.6.1.1-py2.5-freebsd-7.1-STABLE-amd64.egg/multiprocessing/_multiprocessing.so
#3  0x000000000044bc73 in PyType_IsSubtype ()
#4  0x00000000004151d3 in PyObject_Call ()
#5  0x000000000046e55b in PyEval_EvalFrameEx ()
#6  0x000000000047174c in PyEval_EvalCodeEx ()
#7  0x00000000004afbda in PyClassMethod_New ()
#8  0x00000000004151d3 in PyObject_Call ()
#9  0x000000000041ae0d in PyClass_IsSubclass ()
#10 0x00000000004151d3 in PyObject_Call ()
#11 0x000000000046e55b in PyEval_EvalFrameEx ()
#12 0x000000000047174c in PyEval_EvalCodeEx ()
#13 0x00000000004afbda in PyClassMethod_New ()
#14 0x00000000004151d3 in PyObject_Call ()
#15 0x000000000041ae0d in PyClass_IsSubclass ()
#16 0x00000000004151d3 in PyObject_Call ()
#17 0x000000000044f938 in _PyType_Lookup ()
#18 0x000000000044bcb8 in PyType_IsSubtype ()
#19 0x00000000004151d3 in PyObject_Call ()
#20 0x000000000046e55b in PyEval_EvalFrameEx ()
#21 0x000000000047174c in PyEval_EvalCodeEx ()
#22 0x00000000004afbda in PyClassMethod_New ()
#23 0x00000000004151d3 in PyObject_Call ()
#24 0x000000000041ae0d in PyClass_IsSubclass ()
#25 0x00000000004151d3 in PyObject_Call ()
#26 0x000000000044f938 in _PyType_Lookup ()
#27 0x000000000044bcb8 in PyType_IsSubtype ()
#28 0x00000000004151d3 in PyObject_Call ()
#29 0x000000000046e55b in PyEval_EvalFrameEx ()
#30 0x000000000047174c in PyEval_EvalCodeEx ()
#31 0x000000000046fef4 in PyEval_EvalFrameEx ()
#32 0x00000000004706fd in PyEval_EvalFrameEx ()
#33 0x000000000047174c in PyEval_EvalCodeEx ()
#34 0x0000000000471862 in PyEval_EvalCode ()
#35 0x000000000048ae02 in Py_CompileString ()
#36 0x000000000048aed6 in PyRun_FileExFlags ()
#37 0x000000000048c373 in PyRun_SimpleFileExFlags ()
#38 0x0000000000412219 in Py_Main ()
#39 0x0000000000411897 in main ()