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This is bugfix release of stable libmdbx branch.
The most significant fixes since v0.12.10 (the previous version pinned to
buildroot):
- Fixed the possibility of `SIGSEGV` inside the `coherence_check()` after
changing the geometry by another process with an increase in the upper
DB size above the previous in-process limit.
- Fixed cursor(s) handling opened in parent transactions and closed before
the completion of nested/child transactions. In such case, closed
cursors were "resurrected", which led to a leak of memory allocated for
such cursors.
- Fixed a possibility of `SIGSEGV` when enabling logging of the
`MDBX_LOG_TRACE` level in debug builds.
- Correction of the missing `TXN_END_EOTDONE` in the case the start of
a reading transaction fails. The mentioned bit-flag was missing in the
transaction destruction/shutdown path on error its launch. Because of
this, an attempt was made to destroy the cursors, which led to crash
debug builds, since the corresponding array is intentionally filled
with poison pointers.
- Modification of `mdbx_close_by()` to return an error when trying to
close the dbi descriptor of a table created and/or modified in a
still-running transaction. Such premature closure of the descriptor is
an incorrect use of the API and a violation of the contract/preconditions
formulated in the description of `mdbx_close_dbi()`.
However, instead of returning an error, an incorrect closure of the
descriptor was performed, which could lead to the creation of a table
with an empty name, leakage of database pages and/or corruption of a
b-tree structure (wrong reference to the root of a table).
The complete ChangeLog:
https://gitflic.ru/project/erthink/libmdbx/blob?file=ChangeLog.md
Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 81e7806b93)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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