fbtl/posix: fix data-sieving calculations -v 5.0 #11933
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as part of introducing atomicity support for ompi v5.0, we also tried to improve the robustness in some file I/O routines. Unfortunately, this also introduced a bug since ret_code returned by a function does not necessarily contain the number of bytes read or written, but could contain the last value (e.g. 0). The value was however used in a subsequent calculation and we ended not copying data out of the temporary buffer used in the data sieving at all. This commit also simplifies some of the logic in the while loop, no need to retry to read past the end of the file multiple times. Fixes issue open-mpi#11917 Code was tested with the reproducer provided as part of the issue, our internal testsuite, and the hdf5-1.4.2 testsuite, all tests pass. Signed-off-by: Edgar Gabriel <[email protected]> (cherry picked from commit fb3b68f)
edgargabriel
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hm, how can we free up space on the device? The compile-rocm step failed because it is out of disk space |
We can't -- we don't maintain the infrastructure on which the Github Action jobs run. Just run it again (kinda horrible, but true). |
janjust
approved these changes
Sep 19, 2023
lrbison
approved these changes
Sep 21, 2023
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as part of introducing atomicity support for ompi v5.0, we also tried to improve the robustness in some file I/O routines. Unfortunately, this also introduced a bug since ret_code returned by a function does not necessarily contain the number of bytes read or written,
but could contain the last value (e.g. 0). The value was however used in a subsequent calculation and we ended not copying data out of the temporary buffer used in the data sieving at all.
This commit also simplifies some of the logic in the while loop, no need to retry to read past the end of the file multiple times.
Fixes issue #11917
Code was tested with the reproducer provided as part of the issue, our internal testsuite, and the hdf5-1.14.2 testsuite, all tests pass.
Signed-off-by: Edgar Gabriel [email protected]
(cherry picked from commit fb3b68f)