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| author | Raymond Lu <songyulu@hdfgroup.org> | 2005-07-08 17:18:35 (GMT) |
|---|---|---|
| committer | Raymond Lu <songyulu@hdfgroup.org> | 2005-07-08 17:18:35 (GMT) |
| commit | f8964f5c1f29dce2c0c50e292f9e953d39ca347d (patch) | |
| tree | 06c613a5aaaafce72d32cbe6ddee48b77d226a5a /release_docs | |
| parent | c5c9b2507e22e06b04c8824813e34b504e71e281 (diff) | |
| download | hdf5-f8964f5c1f29dce2c0c50e292f9e953d39ca347d.zip hdf5-f8964f5c1f29dce2c0c50e292f9e953d39ca347d.tar.gz hdf5-f8964f5c1f29dce2c0c50e292f9e953d39ca347d.tar.bz2 | |
[svn-r11054] Purpose: Bug fix.
Description: There was a bug in the calculating code of the Fletcher32
checksum in the library before v1.6.3. The checksum value wasn't consistent
between big-endian and little-endian systems. This bug was fixed in
Release 1.6.3. However, after fixing the bug, the checksum value is no
longer the same as before on little-endian system.
Solution: Made the library compare both the correct checksum and incorrect
checksum generated from v1.6.2 or before. This makes the library be
backward compatible but not forward compatible.
Platforms tested: h5committest and fuss.
Misc. update: Documented the forward incompatibility problem in the
Known Problem section in RELEASE.txt
Diffstat (limited to 'release_docs')
| -rw-r--r-- | release_docs/RELEASE.txt | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 90f4ba3..0c1e298 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -732,13 +732,15 @@ Linux 2.4 IA64 Intel y n y n y y y Known Problems ============== -* The dataset created with the v1.6.2 library can't be read with the v1.6.3 - library or after when Fletcher32 EDC(filter) is enabled. There was a bug - in the calculating code of the Fletcher32 checksum in the library before - v1.6.3. The checksum value wasn't consistent between big-endian and - little-endian systems. This bug was fixed in Release 1.6.3. However, after - fixing the bug, the checksum value is no longer the same as before on - little-endian system. SLU - 2005/6/30 +* The dataset created or rewritten with the v1.6.3 library or after can't + be read with the v1.6.2 library or before when Fletcher32 EDC(filter) is + enabled. There was a bug in the calculating code of the Fletcher32 + checksum in the library before v1.6.3. The checksum value wasn't consistent + between big-endian and little-endian systems. This bug was fixed in + Release 1.6.3. However, after fixing the bug, the checksum value is no + longer the same as before on little-endian system. The library release + after 1.6.4 can still read the dataset created or rewritten with the library + of v1.6.2 or before. SLU - 2005/6/30 * For the version 6(6.02 and 6.04) of Portland Group compiler on AMD Opteron processor, there's a bug in the compiler for optimization(-O2). The library failed in several tests but all related to multi driver. The problem has |