Hello,
I'm using dovecot-1.0.b9 on a FreeBSD 6.1 system. Usually we have 6 clients connected to dovecot through IMAPs. These clients are Thunderbird 1.5 programs. After some hours, one or two processed go up to 100% WCPU. As an example, this is what I see when I run 'top':
last pid: 5111; load averages: 1.34, 1.82, 1.75 up 13+00:04:09
15:26:59
150 processes: 2 running, 147 sleeping, 1 zombie
CPU states: 21.2% user, 0.0% nice, 47.7% system, 0.0% interrupt, 31.1%
idle
Mem: 149M Active, 368M Inact, 196M Wired, 29M Cache, 111M Buf, 255M Free
Swap: 5120M Total, 548M Used, 4572M Free, 10% Inuse
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 52627 thomas 1 109 0 2940K 1500K CPU1 0 21:49 99.02% imap
When there are two rebellious clients, they occupy 50-50% CPU time. If I restart thunderbird, then all goes well for a couple of minutes. I need to solve this problem. I already had a system crash that was probably caused by the cpu heat. Pleas help me.
Laszlo