Hello,

I've just installed another postfix+dovecot based mail service (I love dovecot! :-), and I found this message "dict: Leaked a t_pop() call in I/O handler (nil)" being logged each time I authenticate against it via POP3 or IMAP.

Searching through the code, I've found this (this is Dovecot v1.0.8):

---- src/dict/dict-cache.c ---- void dict_cache_unref(struct dict_cache *cache, const char *uri, const char *username) { struct dict_entry *entry;

    t_push();
    entry = hash_lookup(cache->dicts,
                        t_strdup_printf("%s\t%s", username, uri));
    i_assert(entry != NULL && entry->refcount > 0);

    if (--entry->refcount == 0) {
            hash_remove(cache->dicts, entry->user_uri);
            dict_deinit(&entry->dict);
            i_free(entry->user_uri);
            i_free(entry);
    }

} ---- src/dict/dict-cache.c ----

Notice the "t_push()" call there. So calling t_pop() somewhere before the end of the function, makes dovecot work like a charm (again).

P.D: I'm really surprised that nobody noticed this before. Am I the only man in the world who uses Dovecot storing quota information into a SQL Database? ;-)

-- Sergio López - sergio.lopez@nologin.es Nologin Consulting S.L. - http://nologin.es