[Dovecot] 2.0 migration weirdnesses: logs and hang

[Timo Sirainen]

On Thu, 2010-08-19 at 13:12 -0500, Kyle Wheeler wrote:

> >> Second, when I create a new mailbox and copy messages across 
> >> namespaces, dovecot hangs. The mailbox is created and the messages 
> >> are copied successfully, but dovecot simply stops responding. I 
> >> can't even logout!

Did you try this with IMAP client or via talking IMAP directly? Is it
really relevant that it's being done across namespaces? If it seems to
be, try also within a namespace but with maildir_copy_with_hardlinks=no?
What namespaces did you create?

>      dovecot/imap [kyle at memoryhole.net 64.253.106.173 CLOSE UID COPY]

So UID COPY hasn't finished. Probably also relevant that CLOSE was
pipelined.

> Here's the backtrace:
> 
> #0  0xb7fab424 in __kernel_vsyscall ()
> No symbol table info available.
> #1  0xb7defff8 in epoll_wait () from /lib/i686/cmov/libc.so.6
> No symbol table info available.

So it's not hanging. It's just waiting for something..