[Dovecot] dovecot imap auth fails to reconnect pgsql backend

[Frank Wang]

> Some symbol tables were missing. It suggests that some parts of the
> rpm had not been built with -g. In that case you would need to build
> from source and check what flags are being used, e.g. to verify -g is
> part of them.
I tried to build from source using following steps:
./configure --enable-debug --with-pgsql  --with-mysql --with-sqlite
--with-sql=plugin --with-sql-drivers --with-db
make
make install

The config file is the same. Now gdb -p <dovecot-auth> is this:
(gdb) cont
Continuing.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208375616 (LWP 18633)]
sql_query_callback (result=0x8ba8d20, sql_request=0x70) at
passdb-sql.c:58
58		struct auth_request *auth_request = sql_request->auth_request;
(gdb) bt full
#0  sql_query_callback (result=0x8ba8d20, sql_request=0x70) at
passdb-sql.c:58
	auth_request = (struct auth_request *) 0xbf84c1d8
	passdb_result = <value optimized out>
	password = 0x0
	scheme = <value optimized out>
	ret = <value optimized out>
	__PRETTY_FUNCTION__ = "sql_query_callback"
#1  0x00327bef in result_finish (result=0x8ba8d20) at driver-pgsql.c:293
	_data_stack_cur_id = 3
	db = (struct pgsql_db *) 0x7d61462c
#2  0x0806dad0 in io_loop_handler_run (ioloop=0x8ae01a8) at
ioloop-epoll.c:203
	ctx = <value optimized out>
	event = (const struct epoll_event *) 0x8ae8140
	list = (struct io_list *) 0x8af1d70
	io = (struct io_file *) 0x8b02580
	tv = {tv_sec = 0, tv_usec = 499487}
	t_id = 2
	msecs = <value optimized out>
	ret = 1
	i = 0
	j = 0
	call = <value optimized out>
#3  0x0806cbd8 in io_loop_run (ioloop=0x8ae01a8) at ioloop.c:320
No locals.
#4  0x0805a2c7 in main (argc=0, argv=0x8adc008) at main.c:328
	_data_stack_cur_id = 0
	foreground = false

The Makefile is attached. If there's any error, just let me know.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Makefile
Type: text/x-makefile
Size: 25196 bytes
Desc: not available
Url : http://dovecot.org/pipermail/dovecot/attachments/20080927/18b20d3b/attachment-0001.bin