[Issue 10529] assertion failure

https://bugs.openldap.org/show_bug.cgi?id=10529

--- Comment #1 from Howard Chu hyc@openldap.org --- (In reply to christopher@gmerlin.de from comment #0)

When testing the OCaml bindings with lmdb 1.0 I encountered this assertion failure: at src/mdb.c:7588: Assertion 'root > 1' failed in mdb_page_search()")

It was triggered by:

• start transaction
• add new key-value
• commit transaction
• rollback transaction
• start read only transaction
• try to get any key -> assertion failure

Will look into this later.

On another note I notice that this fails with MDB_CANT_ROLLBACK:

• start transaction
• commit ¡EMPTY! transaction

Committing an empty transaction is a no-op. The txnID doesn't advance.

• rollback transaction -> MDB_CANT_ROLLBACK

There is nothing to roll back in that case.

Of course this is a nonsensical transaction. But nevertheless maybe this case should be mentioned in the documentation, too.