[Dovecot] 2.0.3 Bug - hanging issue

[Alan Brown]

We had this this morning:

Oct 25 12:36:34 msslat dovecot: imap(keh2): Error: user keh2: 
Initialization failed: Namespace '#mbox/': 
mkdir(/stage/mail/imap1/keh2/mail) failed: Permission denied 
(euid=2291(keh2) egid=101(luci) missing +w perm: /stage/mail/imap1, euid 
is not dir owner)
Oct 25 12:36:34 msslat dovecot: imap(keh2): Error: Invalid user 
settings. Refer to server log for more information.
Oct 25 12:36:35 msslat dovecot: imap-login: Login: user=<keh2>, 
method=PLAIN, rip=128.40.73.160, lip=128.40.73.13, mpid=26736
Oct 25 12:36:35 msslat dovecot: imap(keh2): Error: user keh2: 
Initialization failed: Namespace '#mbox/': 
mkdir(/stage/mail/imap1/keh2/mail) failed: Permission denied 
(euid=2291(keh2) egid=101(luci) missing +w perm: /stage/mail/imap1, euid 
is not dir owner)
Oct 25 12:36:35 msslat dovecot: imap(keh2): Error: Invalid user 
settings. Refer to server log for more information.

Because the parent directory was rwxr-xr-x root.root

The problem is that for some reason dovecot then wedged and a lot of 
other stuff piled up behind it, causing people to complain their mail 
wasn't coming through. Load average climbed to over 100.

Creating the user directories freed things up...