Dear experts,
I’ve been coming across an error, which I do not fully understand. If I have a file, say “minTest.py”
from ROOT import *
import ROOT
and I import this in another file, say “minTest2.py”
from minTest2 import *
and then run it
python minTest2.py
then everything is fine. If I instead add a function to “minTest.py”
from ROOT import *
import ROOT
def testFunction():
print 'abc'
then I occasionally get following crash report from Python
*** Error in `python': malloc(): memory corruption: 0x0000000003717eb0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x82c86)[0x7f47e51eac86]
/lib64/libc.so.6(__libc_malloc+0x4c)[0x7f47e51ed84c]
/lib64/libpython2.7.so.1.0(+0x81889)[0x7f47e5edb889]
/lib64/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4c68)[0x7f47e5f3cb68]
/lib64/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7ed)[0x7f47e5f4103d]
/lib64/libpython2.7.so.1.0(PyEval_EvalCode+0x32)[0x7f47e5f41142]
/lib64/libpython2.7.so.1.0(+0x10057f)[0x7f47e5f5a57f]
/lib64/libpython2.7.so.1.0(PyRun_FileExFlags+0x7e)[0x7f47e5f5b73e]
/lib64/libpython2.7.so.1.0(PyRun_SimpleFileExFlags+0xe9)[0x7f47e5f5c9c9]
/lib64/libpython2.7.so.1.0(Py_Main+0xc9f)[0x7f47e5f6db7f]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f47e518a445]
python[0x40066e]
======= Memory map: ========
00400000-00401000 r-xp 00000000 fc:01 254551 /usr/bin/python2.7
00600000-00601000 r--p 00000000 fc:01 254551 /usr/bin/python2.7
00601000-00602000 rw-p 00001000 fc:01 254551 /usr/bin/python2.7
006d1000-037fc000 rw-p 00000000 00:00 0 [heap]
7f47c0000000-7f47c0021000 rw-p 00000000 00:00 0
7f47c0021000-7f47c4000000 ---p 00000000 00:00 0
7f47c8000000-7f47c8021000 rw-p 00000000 00:00 0
7f47c8021000-7f47cc000000 ---p 00000000 00:00 0
7f47ce554000-7f47ce555000 ---p 00000000 00:00 0
7f47ce555000-7f47ced55000 rw-p 00000000 00:00 0
7f47ced55000-7f47ced59000 r-xp 00000000 fc:01 254384 /usr/lib64/python2.7/lib-dynload/timemodule.so
7f47ced59000-7f47cef58000 ---p 00004000 fc:01 254384 /usr/lib64/python2.7/lib-dynload/timemodule.so
7f47cef58000-7f47cef59000 r--p 00003000 fc:01 254384 /usr/lib64/python2.7/lib-dynload/timemodule.so
7f47cef59000-7f47cef5b000 rw-p 00004000 fc:01 254384 /usr/lib64/python2.7/lib-dynload/timemodule.so
7f47cef5b000-7f47cef9b000 rw-p 00000000 00:00 0
7f47cef9b000-7f47cf06b000 r-xp 00000000 fc:01 29654585 /usr/lib64/root/libROOTVecOps.so.6.14.04
7f47cf06b000-7f47cf26a000 ---p 000d0000 fc:01 29654585 /usr/lib64/root/libROOTVecOps.so.6.14.04
7f47cf26a000-7f47cf26c000 r--p 000cf000 fc:01 29654585 /usr/lib64/root/libROOTVecOps.so.6.14.04
7f47cf26c000-7f47cf26d000 rw-p 000d1000 fc:01 29654585 /usr/lib64/root/libROOTVecOps.so.6.14.04
7f47cf26d000-7f47cf26f000 rw-p 00000000 00:00 0
7f47cf26f000-7f47cf458000 r-xp 00000000 fc:01 29655595 /usr/lib64/root/libMathCore.so.6.14.04
7f47cf458000-7f47cf658000 ---p 001e9000 fc:01 29655595 /usr/lib64/root/libMathCore.so.6.14.04
7f47cf658000-7f47cf663000 r--p 001e9000 fc:01 29655595 /usr/lib64/root/libMathCore.so.6.14.04
7f47cf663000-7f47cf666000 rw-p 001f4000 fc:01 29655595 /usr/lib64/root/libMathCore.so.6.14.04
7f47cf666000-7f47cf670000 rw-p 00000000 00:00 0
7f47cf670000-7f47cf682000 r-xp 00000000 fc:01 29655723 /usr/lib64/root/libvectorDict.so.6.14.04
7f47cf682000-7f47cf882000 ---p 00012000 fc:01 29655723 /usr/lib64/root/libvectorDict.so.6.14.04
7f47cf882000-7f47cf883000 r--p 00012000 fc:01 29655723 /usr/lib64/root/libvectorDict.so.6.14.04
7f47cf883000-7f47cf884000 rw-p 00013000 fc:01 29655723 /usr/lib64/root/libvectorDict.so.6.14.04
7f47cf884000-7f47cf885000 rw-p 00000000 00:00 0
7f47cf885000-7f47cf8a7000 r-xp 00000000 fc:01 2179764 /usr/lib64/ld-2.17.so
7f47cf8a7000-7f47cfaa6000 ---p 00022000 fc:01 2179764 /usr/lib64/ld-2.17.so
7f47cfaa6000-7f47cfaa7000 r--p 00021000 fc:01 2179764 /usr/lib64/ld-2.17.so
7f47cfaa7000-7f47cfaa8000 rw-p 00022000 fc:01 2179764 /usr/lib64/ld-2.17.so
7f47cfaa8000-7f47cfaa9000 rw-p 00000000 00:00 0
7f47cfaa9000-7f47cfaac000 r-xp 00000000 fc:01 254340 /usr/lib64/python2.7/lib-dynload/_heapq.so
7f47cfaac000-7f47cfcab000 ---p 00003000 fc:01 254340 /usr/lib64/python2.7/lib-dynload/_heapq.so
7f47cfcab000-7f47cfcac000 r--p 00002000 fc:01 254340 /usr/lib64/python2.7/lib-dynload/_heapq.so
7f47cfcac000-7f47cfcae000 rw-p 00003000 fc:01 254340 /usr/lib64/python2.7/lib-dynload/_heapq.so
7f47cfcae000-7f47cfcb8000 r-xp 00000000 fc:01 254368 /usr/lib64/python2.7/lib-dynload/itertoolsmodule.so
7f47cfcb8000-7f47cfeb7000 ---p 0000a000 fc:01 254368 /usr/lib64/python2.7/lib-dynload/itertoolsmodule.so
7f47cfeb7000-7f47cfeb8000 r--p 00009000 fc:01 254368 /usr/lib64/python2.7/lib-dynload/itertoolsmodule.so
7f47cfeb8000-7f47cfebd000 rw-p 0000a000 fc:01 254368 /usr/lib64/python2.7/lib-dynload/itertoolsmodule.so
7f47cfebd000-7f47cfefd000 rw-p 00000000 00:00 0
7f47cfefd000-7f47cff03000 r-xp 00000000 fc:01 254299 /usr/lib64/python2.7/lib-dynload/_collectionsmodule.so
7f47cff03000-7f47d0102000 ---p 00006000 fc:01 254299 /usr/lib64/python2.7/lib-dynload/_collectionsmodule.so
7f47d0102000-7f47d0103000 r--p 00005000 fc:01 254299 /usr/lib64/python2.7/lib-dynload/_collectionsmodule.so
7f47d0103000-7f47d0105000 rw-p 00006000 fc:01 254299 /usr/lib64/python2.7/lib-dynload/_collectionsmodule.so
7f47d0105000-7f47d010e000 r-xp 00000000 fc:01 254373 /usr/lib64/python2.7/lib-dynload/operator.so
7f47d010e000-7f47d030d000 ---p 00009000 fc:01 254373 /usr/lib64/python2.7/lib-dynload/operator.so
7f47d030d000-7f47d030e000 r--p 00008000 fc:01 254373 /usr/lib64/python2.7/lib-dynload/operator.so
7f47d030e000-7f47d0310000 rw-p 00009000 fc:01 254373 /usr/lib64/python2.7/lib-dynload/operator.so
7f47d0310000-7f47d034c000 r-xp 00000000 fc:01 2250129 /usr/lib64/libreadline.so.6.2
7f47d034c000-7f47d054c000 ---p 0003c000 fc:01 2250129 /usr/lib64/libreadline.so.6.2
7f47d054c000-7f47d054e000 r--p 0003c000 fc:01 2250129 /usr/lib64/libreadline.so.6.2
7f47d054e000-7f47d0554000 rw-p 0003e000 fc:01 2250129 /usr/lib64/libreadline.so.6.2
7f47d0554000-7f47d0556000 rw-p 00000000 00:00 0
7f47d0556000-7f47d055b000 r-xp 00000000 fc:01 254377 /usr/lib64/python2.7/lib-dynload/readline.so
7f47d055b000-7f47d075a000 ---p 00005000 fc:01 254377 /usr/lib64/python2.7/lib-dynload/readline.so
7f47d075a000-7f47d075b000 r--p 00004000 fc:01 254377 /usr/lib64/python2.7/lib-dynload/readline.soAborted (core dumped)
Removing the “from ROOT import *” cures this issue. Why is that?
ROOT Version: 6.14
Platform: lxplus7