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cdms2 seg faults when using unknown '+rw' mode for opening a file #77

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jypeter opened this issue Jan 13, 2017 · 1 comment
Open

cdms2 seg faults when using unknown '+rw' mode for opening a file #77

jypeter opened this issue Jan 13, 2017 · 1 comment
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@jypeter
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@jypeter jypeter commented Jan 13, 2017

A colleague wanted to open a file in 'r+' mode. Except that he used '+rw' instead and he got the following error

CDMS I/O error: Looking up file 45136816
cdunif: Unknown Error
Segmentation fault: 11

Can you add some code to check the open mode requested by the user and make it more foolproof?

For reference, I get a similar but more verbose output in my antique cdms2

>>> f = cdms2.open('rmp_tlmd_to_uorc_BILINEAR.nc', '+rw')
CDMS I/O error: Looking up file 149265024
cdunif: Unknown Error
[asterix2:23459] *** Process received signal ***
[asterix2:23459] Signal: Segmentation fault (11)
[asterix2:23459] Signal code: Address not mapped (1)
[asterix2:23459] Failing at address: 0x8
[asterix2:23459] [ 0] /lib64/libpthread.so.0() [0x3f5fe0f7e0]
[asterix2:23459] [ 1] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyDict_Next+0) [0x2b4101134470]
[asterix2:23459] [ 2] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/python2.7/site-packages/cdms2/Cdunif.so(+0x11b8a) [0x2b410e374b8a]
[asterix2:23459] [ 3] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/python2.7/site-packages/cdms2/Cdunif.so(+0x11ce5) [0x2b410e374ce5]
[asterix2:23459] [ 4] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/python2.7/site-packages/cdms2/Cdunif.so(+0x12042) [0x2b410e375042]
[asterix2:23459] [ 5] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/python2.7/site-packages/cdms2/Cdunif.so(+0x14e91) [0x2b410e377e91]
[asterix2:23459] [ 6] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x5930) [0x2b41011a19d0]
[asterix2:23459] [ 7] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x88e) [0x2b41011a354e]
[asterix2:23459] [ 8] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(+0x77711) [0x2b4101121711]
[asterix2:23459] [ 9] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyObject_Call+0x53) [0x2b41010f2243]
[asterix2:23459] [10] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(+0x5a87f) [0x2b410110487f]
[asterix2:23459] [11] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyObject_Call+0x53) [0x2b41010f2243]
[asterix2:23459] [12] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(+0xb4580) [0x2b410115e580]
[asterix2:23459] [13] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(+0xab118) [0x2b4101155118]
[asterix2:23459] [14] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyObject_Call+0x53) [0x2b41010f2243]
[asterix2:23459] [15] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x4dfd) [0x2b41011a0e9d]
[asterix2:23459] [16] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x88e) [0x2b41011a354e]
[asterix2:23459] [17] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x565a) [0x2b41011a16fa]
[asterix2:23459] [18] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x88e) [0x2b41011a354e]
[asterix2:23459] [19] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyEval_EvalCode+0x32) [0x2b41011a3662]
[asterix2:23459] [20] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyRun_InteractiveOneFlags+0x195) [0x2b41011c2fb5]
[asterix2:23459] [21] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyRun_InteractiveLoopFlags+0x4e) [0x2b41011c31ce]
[asterix2:23459] [22] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(PyRun_AnyFileExFlags+0x4c) [0x2b41011c390c]
[asterix2:23459] [23] /home/share/unix_files/cdat/versions/cdat_install_uv-2.1.0_x86_64_gcc4_13/lib/libpython2.7.so.1.0(Py_Main+0xc74) [0x2b41011d8ce4]
[asterix2:23459] [24] /lib64/libc.so.6(__libc_start_main+0xfd) [0x3f5f61ed1d]
[asterix2:23459] [25] python() [0x4006e9]
[asterix2:23459] *** End of error message ***
Segmentation fault (core dumped)
@doutriaux1 doutriaux1 added this to the 3.0 milestone Jan 17, 2017
@durack1
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@durack1 durack1 commented Mar 27, 2017

@dnadeau4 this would be a trivial check of a list of possibles right?

@doutriaux1 doutriaux1 assigned dnadeau4 and unassigned dnadeau4 May 5, 2017
@doutriaux1 doutriaux1 modified the milestones: 3.0, 3.1 Mar 29, 2018
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