Re: (ITS#3862) Memory leak in back-ldap

[ando@sys-net.it]

I built a program that does:

ldap_initialize()
ldap_sasl_bind()
ldap_result()
ldap_search_ext()
for (;;) {
    check that ldap_result() == LDAP_RES_SEARCH_ENTRY
}

If I abort right after ldap_sasl_bind() or right after ldap_search_ext() 
nothing appears; if I abort from inside the ldap_result() loop after 
search, I see the leak you mention with RE22:

==31263== 24 bytes in 1 blocks are definitely lost in loss record 4 of 14
==31263==    at 0x1B9046C1: calloc (vg_replace_malloc.c:176)
==31263==    by 0x81A9A1B: ber_memcalloc_x (memory.c:286)
==31263==    by 0x8179CE3: try_read1msg (result.c:836)
==31263==    by 0x8178F2F: wait4msg (result.c:378)
==31263==    by 0x81787C9: ldap_result (result.c:126)
==31263==    by 0x80F3E4C: ldap_back_search (search.c:181)
==31263==    by 0x80754DF: do_search (search.c:412)
==31263==    by 0x80725A0: connection_operation (connection.c:1079)
==31263==    by 0x817691B: ldap_int_thread_pool_wrapper (tpool.c:467)
==31263==    by 0x1BB299DF: thread_wrapper (vg_libpthread.c:867)

but not with HEAD, nor with 2.3.4; recently some concurrency issue in 
abandon has been fixed in HEAD, I think that very problem might have 
been addressed as well, but not all of those fixes are already in 2.3.4, 
so I'm puzzled I cannot find the leak from 2.3.4 on till HEAD.

p.


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