Comment 3 for bug 403011

bt full:

#0 __flockfile (stream=0x0) at ../nptl/sysdeps/pthread/flockfile.c:30
No locals.
#1 0x00007f083d46380c in ecryptfs_fetch_private_mnt ()
   from /usr/lib/libecryptfs.so.0
No symbol table info available.
#2 0x00007f083d682d38 in pam_sm_authenticate (pamh=0x1298460,
    flags=<value optimized out>, argc=1, argv=0x129f920) at pam_ecryptfs.c:135
        uid = 1000
        homedir = 0x12aebb2 "/home/martin"
        saved_uid = 1041103611
        username = 0x12985e0 "martin"
        passphrase = 0x0
        salt = "\0\0\0\0\0\0\0"
        salt_hex = ""\340Ɓ[\377\177\0\0\220\245)\1\0\0\0
        private_mnt = <value optimized out>
        tmp_pid = <value optimized out>
        rc = <value optimized out>
        version = 32520
        __FUNCTION__ = "pam_sm_authenticate"
#3 0x00007f083f8b9b70 in ?? () from /lib/libpam.so.0
No symbol table info available.
#4 0x00007f083f8b9498 in pam_authenticate () from /lib/libpam.so.0
No symbol table info available.
#5 0x00000000004033ca in ?? ()
#6 0x00007f083f362606 in __libc_start_main (
    main=0x402ce0 <getgrnam_r@plt+952>, argc=3, ubp_av=0x7fff5b81eda8,
    init=0x407f50 <getgrnam_r@plt+22056>, fini=<value optimized out>,
    rtld_fini=<value optimized out>, stack_end=0x7fff5b81ed98)
    at libc-start.c:220
        result = <value optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {4226896,
                -5134769356078350032, 4204864, 140734728629664, 0, 0,
                5134971614242505008, 5092968738607694128},
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x3, 0x402ce0},
            data = {prev = 0x0, cleanup = 0x0, canceltype = 3}}}
        not_first_call = <value optimized out>