Trouble with Informix 7.3 on Solaris and CLI 2.5

Hello. I try to write un C program to connect directly to my Informix 7.3 server. Both the database server and my application run on Sun Solaris 2.5.3. I use CLI 2.5 API instead of ESQL/C to have the portability with Odbc. I have got a problem with the SQLDisconnect API. My program is waiting on something with no timeout. I see it with Gdb. This the report of onstat - u : -------------------------------------- informix:onstat -u Informix Dynamic Server Version 7.30.UC3 -- On-Line -- Up 02:36:27 -- 4640 Kbytes Userthreads address flags sessid user tty wait tout locks nreads nwrites a1c8018 ---P--D 1 informix - 0 0 0 13 5 a1c84cc ---P--F 0 informix - 0 0 0 0 2 a1c8980 ---P--- 6 informix - 0 0 0 0 0 a1c8e34 ---P--B 7 informix - 0 0 0 0 0 a1c979c Y--P--- 15 informix 5 a2db528 0 1 0 0 a1c9c50 ---P--D 10 informix - 0 0 0 0 0 6 active, 128 total, 9 maximum concurrent This is the report of gdb : ---------------------------------- (gdb) where #0 0xef4f81a0 in _syscall () #1 0xef6ff7f0 in buf_wait () #2 0xef6fef90 in recvshm () #3 0xef710e54 in slSQIrecv () #4 0xef70b268 in pfRecv () #5 0xef6eb02c in asfRecv () #6 0xef6ed550 in ASF_Call () #7 0xef722a34 in asf_recv () #8 0xef722b6c in _iread () #9 0xef72179c in _igetint () #10 0xef6cff54 in _OdbcDisconnect () #11 0xef6b621c in _OdbcSqlDisconnect () #12 0xef6b616c in SQLDisconnect () #13 0x137338 in KslInfDeconnecter () at /KSLNFS31/dev//ksll4g/source//kslinf/kslinf1.c:286 #14 0x136dec in KslInfTerminer () at > /KSLNFS31/dev//ksll4g/source//kslinf/kslinf1.c:167 #15 0x129d84 in KslInfL4GTerminer (C1=0x0, C2=0x0, C3=0x0) at /KSLNFS31/dev//ksll4g/source//kslinf/kslinf3.c:111 #16 0x276b4 in TerminerModules () at /KSLNFS31/dev//ksll4g/source//commun/commun1.c:1946 #17 0x27c18 in ComTerminer () at /KSLNFS31/dev//ksll4g/source//commun/commun1.c:2048 ---Type <return> to continue, or q <return> to quit--- Thanks for your help. DUVAL Jean-Pierre, Ksl Product Manager. duval@kallisto.net