#2941 closed defect (fixed)
HDF5 driver easily confused about datatypes
| Reported by: | warmerdam | Owned by: | warmerdam |
|---|---|---|---|
| Priority: | normal | Milestone: | |
| Component: | GDAL_Raster | Version: | unspecified |
| Severity: | normal | Keywords: | HDF5 |
| Cc: |
Description
gdalinfo -checksum HDF5:"groups.h5"://MyGroup/dset1
produces valgrind errors indicating memory corruption. It appears to be due to 32bit integer data being misclassified as 16bit.
A similar problem occurs on 64bit platforms with u64be.h5 being misclassified as 32bit integer.
I presume this problem has existed as long as the hdf5 driver.
Attachments (2)
Change History (5)
by , 14 years ago
comment:1 by , 14 years ago
| Milestone: | → 1.5.5 |
|---|---|
| Resolution: | → fixed |
| Status: | new → closed |
I have patched this in trunk (r16746), 1.6 (r16747) and 1.5 (r16748). The changes properly treat INT and UINT as 32bit, and decide based on sizeof(long) whether LONG is 32bit (usable) or 64bit (unusable for now). The container dataset object was also changed to not list subdatasets that are of unsupported types (though a debug message is issued).
Ideally at some point we would change the driver to convert unsupported datatypes to supported datatypes.
first error demonstrating data.