Segmentation fault in 3.0.3

Hi,

  There is segmentation fault when I connect to a ftp site. Again, this
  is inconformity of the server software with RFCs. But lftp shouldn't
  crash.

  The debug message and stack trace is :

Detaching after fork from child process 14188.
lftp 202.38.72.133:~> debug
lftp 202.38.72.133:~> ls
---- Connecting to 202.38.72.133 (202.38.72.133) port 508
<--- 220 Gene6 FTP Server v3.0.0  (Build 34) ready...
---> FEAT
<--- 211-Extensions supported:
<---  AUTH TLS
<---  PBSZ
<---  PROT
<---  CLNT
<---  COMPRESSION NONE*;ZLIB;
<---  MDTM
<---  MLST type*;size*;created;modify*;
<---  PASV
<---  REST STREAM
<---  SIZE
<---  TVFS
<---  UTF8
<---  XCRC "filename" SP EP
<---  XMD5 "filename" SP EP
<--- 211 End.
---> OPTS UTF8 ON
<--- 530 Please login with USER and PASS first.
---> USER anonymous
<--- 331 Password required for anonymous.
---> PASS lftp@
<--- 230-=============================================================
<---          Gaslab FTP----music??movie??tvrip??0day??Others
<---
<---      ????202.38.76.136?????????????????????04/05/04 16:51:40.
<---      ???????????????05d00:33:06.
<---
<---  =============================================================
<---                 ???????? 1/4 ??
<---
<---          ?????????0??
<---          ????????7??
<---          ?IP?????500 KBps
<---          ????????582.067 GBytes
<---          ????Θ???59.236 MBytes
<---          ?????????14227
<---          ?Θ??????20
<---          ??????1.376 MBytes/s
<---          ??????1004.003 KBytes/s
<---          ??????1.602 GBytes
<---  =============================================================
<---       ?й?ftp????????ε[email protected]  [email protected]
<---  =============================================================
<---       ???
<---
<---       1.????????????????????????????????????10???????
<---         30???????5???????????10?????
<---       2.????????1??????????????????! ?????Ban C??IP??
<---  =============================================================
<---       Movie??????????У????????????
<---       ftp://202.38.73.135
<---       ftp://202.38.73.101:411
<---  =============================================================
<--- 230 User anonymous logged in.
---> PWD
<--- ==================================
<---       Movie??????????У????????????
<---       ftp://202.38.73.135
<---       ftp://202.38.73.101:411
<---  =============================================================
<--- 230 User anonymous logged in.
<--- 257 "/" is current directory.

Program received signal SIGSEGV, Segmentation fault.
0x080c9196 in Ftp::ExpectQueue::Pop (this=0x8193a10) at ftpclass.cc:3086
3086       first=first->next;
(gdb) bt
#0  0x080c9196 in Ftp::ExpectQueue::Pop (this=0x8193a10) at
ftpclass.cc:3086
#1  0x080ca3bb in Ftp::CheckResp (this=0x8165590, act=257) at
ftpclass.cc:3509
#2  0x080c7b02 in Ftp::ReceiveResp (this=0x8165590) at ftpclass.cc:2565
#3  0x080c3bd8 in Ftp::Do (this=0x8165590) at ftpclass.cc:1410
#4  0x0809831b in SMTask::Schedule () at SMTask.cc:173
#5  0x08075d9c in WaitDone (exec=0x815a4b8) at lftp.cc:73
#6  0x0807647b in main (argc=4, argv=0xbffff2d4) at lftp.cc:404
(gdb) frame 1
#1  0x080ca3bb in Ftp::CheckResp (this=0x8165590, act=257) at
ftpclass.cc:3509
3509       Expect *exp=expect->Pop();
(gdb) p *expect
$1 = {first = 0x0, last = 0x8193a10, count = 0}


Best regards
Wang