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[netCDF #MRV-404062]: File can be read by ToolsUI but crashes ncdump (?)

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  • Subject: [netCDF #MRV-404062]: File can be read by ToolsUI but crashes ncdump (?)
  • Date: Fri, 01 May 2015 09:54:13 -0600
Hello Matt,

I've started to investigate this and, at a glance, it appears to be an issue 
with the hdf5 library netcdf uses for netcdf-4 files.  I say this based on the 
following stack trace:

#0  0x00000001031ea430 in H5FL_arr_malloc ()
#1  0x0000000103299bd2 in H5S_extent_copy ()
#2  0x000000010329970f in H5S_copy ()
#3  0x000000010319ce01 in H5D__chunk_io_init ()
#4  0x00000001031b3536 in H5D__read ()
#5  0x00000001031b2fb7 in H5Dread ()
#6  0x00000001000694a4 in nc4_get_vara ()
#7  0x000000010005e4cb in NC4_get_vara ()
#8  0x000000010001b49a in NC_get_vara ()
#9  0x000000010001c264 in nc_get_vara ()
#10 0x00000001000077da in print_rows ()
#11 0x0000000100007718 in print_rows ()
#12 0x0000000100007222 in vardata ()
#13 0x0000000100004e48 in do_ncdump_rec ()
#14 0x0000000100003acc in main ()

I will continue to investigate, but I was hoping you could tell me what version 
of libhdf5 you are using?  

Thanks, have a great day,

-Ward

> Hello!
> 
> I'm currently creating netCDF files (see attached example) using the C NetCDF 
> library.
> 
> I can display the NetCDF header using ncdump -h, but if I try to do a full 
> dump it causes a Segmentation Fault partway through displaying the main 
> "SU_Telemetry" variable.  I have tried this with both netcdf versions 4.1.3 
> and 4.3.2.
> 
> However, I can display the SU_Telemetry data array with no issues using 
> ToolsUI.
> 
> I would love to write the file out so NcDump can fully display it (or at 
> least know why it's behaving in this way) - can you help?
> 
> 
> Thanks,
> Matt Wilson
> 
> 
> 

Ticket Details
===================
Ticket ID: MRV-404062
Department: Support netCDF
Priority: Normal
Status: Closed