Hello,
since few days there are problems with the userdb lookup. The problem occur if the recipient user is unknown (here test@xtlv.cn)
doveconf -n # 2.2.6 (f89e645cba90): /etc/dovecot/dovecot.conf # OS: Linux 3.2.45.stk32 i686 Debian jessie/sid ext3 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = digest-md5 cram-md5 auth_username_translation = %Lu auth_verbose = yes auth_verbose_passwords = plain debug_log_path = /var/log/dovecot/dov_debug.log hostname = kyoto.vtlx.cn login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_debug = yes mail_gid = vmail mail_home = /var/mail/vhosts/%Ld/%Ln mail_location = sdbox:/var/mail/vhosts/%Ld/%Ln:DIRNAME=DbOx-mAiLs mail_plugins = " quota mail_log notify expire zlib" mail_privileged_group = vmail mail_uid = vmail mailbox_list_index = yes ... passdb { args = scheme=PLAIN username_format=%Lu /etc/dovecot/user_pw/passwd driver = passwd-file } postmaster_address = postmaster@xtlv.cn protocols = " imap lmtp sieve pop3" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } } service config { unix_listener config { mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { address = 84.38.75.44 port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 84.38.75.44 port = 4190 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 84.38.75.44 port = 995 ssl = yes } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/quota-status { group = postfix mode = 0660 user = postfix } } ... userdb { args = username_format=%Lu /etc/dovecot/user_pw/passwd driver = passwd-file } ...
gdb /usr/lib/dovecot/auth core_dbg GNU gdb (GDB) 7.6 (Debian 7.6-5) Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-linux-gnu". For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from /usr/lib/dovecot/auth...Reading symbols from /usr/lib/debug/usr/lib/dovecot/auth...done. done. [New LWP 26466]
warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
Core was generated by `dovecot/auth'.
Program terminated with signal 6, Aborted.
#0 0xb779d424 in __kernel_vsyscall ()
(gdb) bt full
#0 0xb779d424 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb74ec80f in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
resultvar = <optimized out>
resultvar = <optimized out>
pid = -1218015232
selftid = 26466
#2 0xb74efcc3 in __GI_abort () at abort.c:90
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0xb7794ff4, sa_sigaction =
0xb7794ff4}, sa_mask = {__val = {0, 3077744103, 3216056844, 3078348800,
3078207408, 1, 3078184664, 3078275225, 3078207848, 3077070192,
1, 1, 0, 0, 159279448, 3077360220, 3077743598, 3078180852,
3075085960, 3077367868, 159354316, 3077744683, 3078186032, 3075227880,
3216056948, 3077897967, 0, 3078180852, 0, 0, 159354316, 3078300704}},
sa_flags = 1, sa_restorer = 0xb74efb80 <__GI_abort>}
sigs = {__val = {32, 0
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