On Mon, 4 Aug 2008, Timo Sirainen wrote:
It doesn't seem to be that the current logic is working; there is no
program with the PID that's in master.pid, and dovecot (1.0.7 + RHEL
patches) refuses to start.
root: /root$ /sbin/service dovecot start
Starting Dovecot Imap: Error: Dovecot is already running with PID 2746
(read from /var/run/dovecot/master.pid)
Fatal: Invalid configuration in /etc/dovecot.conf
[FAILED]
root: /root$ more /var/run/dovecot/master.pid
2746
root: /root$ ps auxw | grep 2746
root 31714 0.0 0.1 4116 584 pts/1 R+ 20:19 0:00 grep 2746
SELinux perhaps? It checks this by kill()ing the process and seeing if it
returns ESRCH. If not, it assumes the process exists. If you've SELinux
perhaps it always return EPERM to the call..
'getenforce' says disabled, so no. This is pretty strange -- I looked
at the code and basically duplicated the logic there and could not
reproduce this problem with a smaller piece of code. And it doesn't
seem to appear always in any case -- I killed dovecot with KILL signal
(leaving the PID file behind), and after that it started up without
problems. Unless you have other ideas what to look for, I guess this
will remain a mystery..
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
