| Segmentation fault with CDF routines under Linux [message #22375] |
Fri, 10 November 2000 00:00  |
riglerej
Messages: 5
Registered: November 2000
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Junior Member |
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Using both 5.3, and 5.4, I consistently have problems with seg-faults
when trying to run various CDF routines under Linux. I'm fairly new to
using IDL to read CDFs, but I'm not trying to do anything strange. In
fact, I can't even get cdf_open to work.
Specifically, I have a problem when my argument to cdf_open is a string
provided by the findfile routine. If I type in my own string,
everything works great, but if it comes from findfile, I get a
seg-fault. The exerpt below is copied exactly from my session, an
should give a very clear idea of what is happening...
IDL Version 5.4 (linux x86). (c) 2000, Research Systems, Inc.
Installation number: 100.
Licensed for use by: moiraine
IDL> year_beg='2000'
IDL> month_beg='08'
IDL> day_beg='01'
IDL> help
% At $MAIN$
DAY_BEG STRING = '01'
MONTH_BEG STRING = '08'
YEAR_BEG STRING = '2000'
Compiled Procedures:
$MAIN$
Compiled Functions:
IDL> file=findfile('ac_*_swe_'+year_beg+month_beg+day_beg+'*.cdf' )
IDL> print,file
ac_k0_swe_20000801_v01.cdf
IDL> id=cdf_open(file)
% Loaded DLM: CDF.
Segmentation fault
[jrigler@moiraine] [15:55:03]
1016 <~/research/LPF/data/cdf/ace/swe/2000> idl
IDL Version 5.4 (linux x86). (c) 2000, Research Systems, Inc.
Installation number: 100.
Licensed for use by: moiraine
IDL> file='ac_k0_swe_20000801_v01.cdf'
IDL> id=cdf_open(file)
% Loaded DLM: CDF.
IDL>
Can anyone else recreate this on Linux, or with versions other than 5.3
and 5.4? I tried this with several different cdf files, so I don't
think it is a problem with the file format. Any other ideas?
-Josh
P.S. While I'd love to move to HDF, that is not an option, so it might
be wisest not to make that suggestion.
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