[Mailman-Users] Python process size grows 30x in 8 hours - dtrace stack

[Fletcher Cocquyt]

I had a parallel thread on the dtrace list to get memleak.d running

http://blogs.sun.com/sanjeevb/date/200506

 - I just got this stack trace from a 10 second sample of the most actively
growing python mailman process - the output is explained by Sanjeev on his
blog, but I'm hoping the stack trace will point the analysis towards a cause
for why my mailman processes are  growing abnormally

I will see if the findleaks.pl analysis of this output returns anything

Thanks!

  0  42246                   realloc:return Ptr=0x824c268 Oldptr=0x0 Size=16
              libc.so.1`realloc+0x33a
              python`addcleanup+0x45
              python`convertsimple+0x145d
              python`vgetargs1+0x259
              python`_PyArg_ParseTuple_SizeT+0x1d
              python`posix_listdir+0x55
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42249                       free:entry Ptr=0x824c268
  0  42244                   lmalloc:return Ptr=0xcf890300 Size=16
              libc.so.1`lmalloc+0x143
              libc.so.1`opendir+0x3e
              python`posix_listdir+0x6d
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42244                   lmalloc:return Ptr=0xcf894000 Size=8192
              libc.so.1`lmalloc+0x143
              libc.so.1`opendir+0x3e
              python`posix_listdir+0x6d
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42249                       free:entry Ptr=0x86d78f0
^C
  0  42246                   realloc:return Ptr=0x824c268 Oldptr=0x0 Size=16
              libc.so.1`realloc+0x33a
              python`addcleanup+0x45
              python`convertsimple+0x145d
              python`vgetargs1+0x259
              python`_PyArg_ParseTuple_SizeT+0x1d
              python`posix_listdir+0x55
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42249                       free:entry Ptr=0x824c268
  0  42244                   lmalloc:return Ptr=0xcf890300 Size=16
              libc.so.1`lmalloc+0x143
              libc.so.1`opendir+0x3e
              python`posix_listdir+0x6d
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42244                   lmalloc:return Ptr=0xcf894000 Size=8192
              libc.so.1`lmalloc+0x143
              libc.so.1`opendir+0x3e
              python`posix_listdir+0x6d
              python`PyEval_EvalFrameEx+0x59ff
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalFrameEx+0x49ff
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalFrameEx+0x6133
              python`PyEval_EvalCodeEx+0x57f
              python`PyEval_EvalCode+0x22
              python`PyRun_FileExFlags+0xaf
              python`PyRun_SimpleFileExFlags+0x156
              python`Py_Main+0xa6b
              python`main+0x17
              python`_start+0x80

  0  42249                       free:entry Ptr=0x86d78f0




On 7/2/08 10:14 AM, "Barry Warsaw" <barry at list.org> wrote:

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> On Jul 2, 2008, at 1:12 PM, Fletcher Cocquyt wrote:
> 
>> I am hopeful our esteemed code maintainers are thinking the built in
>> restart
>> idea is a good one:
> 
> Optionally, yes.  By default, I'm not so sure.
> 
> - -Barry
> 
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-- 
Fletcher Cocquyt
Senior Systems Administrator
Information Resources and Technology (IRT)
Stanford University School of Medicine

Email: fcocquyt at stanford.edu
Phone: (650) 724-7485