Package: proftpd-mysql Version: 1.2.10-15sarge1.0.1 When a client send a LIST command, sometimes the client is blocked and the corresponding process on the server eats all CPU resources.
When my server have 30 ftp users online, there will be about 10 users blocked and the load average will be 10-12. With ftpwho, I can see that all CPU-eating process are serving a LIST command. Somebody has reported the same problem in Slackware. The link is: http://www.vttoth.com/proftpd.htm I am using Debian GNU/Linux 3.0r0, kernel 2.6.8-2-386 and libc6 2.3.2.ds1-22