Full_Name: gian paolo ciceri Version: lmdb 0.9.18 OS: OSX URL: ftp://ftp.openldap/org/incoming Submission from: (NULL) (5.170.1.95)

With lmdb (fresh git clone), if you run the standard sample-mdb.c example program WITHOUT creating the ./testdb/ directory for the database before, you take error 2 No such file or directory after the open. OK, but if you still proceed to the begin the transaction, you take a segmentation fault 11: there's what gdb says

sample-mdb

Program received signal SIGSEGV, Segmentation fault. 0x0000000100001443 in mdb_txn_renew0 (txn=0x0) at ../mdb.c:2619 2619 MDB_env *env =xtxn->mt_env;

Of course there is NO reason to begin the tnx if the open fails, but should not be better to trap this situation and comply instead of proceed and generate the segfault? Perhaps you suppose the program knows what is doing, but I (as programmer) am less sure of myself.

Best regards, thanks for your attention. /gp