[Proftpd-user] EXTREMLY high CPU usage !

[Dmitry A. <di...@al...>]

hi

Sometimes I see that proftpd uses 90% CPU after client disconnection.

It looks like this:

top shows:
  PID USERNAME PRI NICE  SIZE    RES STATE  C   TIME   WCPU    CPU COMMAND
70019 root      60   0  3500K   336K CPU1   1 203.8H 96.92% 96.92% proftpd

# ftpwho
inetd FTP connections:
70019 -      proftpd: ftp - as2-L232.isp.net: anonymous/IEUser@: LIST
Service class                      -   1 user

sockstat shows:
USER     COMMAND    PID   FD PROTO  LOCAL ADDRESS         FOREIGN ADDRESS
ftp      proftpd  70019    3 dgram  syslogd[160]:3

and some interesting records in syslog file:
Oct 10 20:20:42 host proftpd[70019]: host (as2-L232.isp.net[x.x.x.x]) - FTP session opened.
Oct 10 20:20:42 host proftpd[70019]: host (as2-L232.isp.net[x.x.x.x]) - ANON anonymous: Login successful.
Oct 10 20:26:44 host proftpd[70019]: host (as2-L232.isp.net[x.x.x.x]) - Data transfer stall timeout: 180 seconds
Oct 10 20:26:44 host proftpd[70019]: host (as2-L232.isp.net[x.x.x.x]) - ProFTPD terminating (signal 11)

after killing:
Oct 19 10:34:38 host proftpd[70019]: host (as2-L232.isp.net[x.x.x.x]) - ProFTPD killed (signal 15)
Oct 19 10:36:26 host inetd[182]: /usr/local/ftpd/sbin/proftpd[70019]: exit status 0x9

It was possible to kill the proftpd instance only by -9 signal

ProFTPD 1.2.2rc3
FreeBSD 4.2-STABLE

Could someone comment these stranges ? Is it fixed in 1.2.4 ?
If no - how can I get over that ?

-- 
Dimitry