Full_Name: Derrick McKee Version: OPENLDAP_REL_ENG_2_4_45 OS: Windows URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (2404:f801:8028:1::17f)

Compiling OpenLDAP using clang on Windows with MinGW results in a binary that crashes during shutdown. The issue is with mdb_txn_abort in libraries/liblmdb/mdb.c. The initial txn does have a non-null child, however, the address is a garbage address (i.e. containing a mix of 1 and 0 bits set in the upper 16 bits in a 64-bit pointer). This seems to indicate that somewhere the code is expecting a 0 initialized memory area, when it isn't.

How to recreate:

CC=clang CFLAGS="-m64" ./configure --without-threads --without-tls make depend && make (using CMD.exe) ./servers/slapd/slapd <user hits Ctrl-c>