[Dovecot] dsync: mbox to maildir hangs

[Timo Sirainen]

On Mon, 2010-09-13 at 18:54 +0200, Burckhard Schmidt wrote:

> dsync uses about 75% of one cpu all the time. I was waiting more than 50 
> minutes but no progress.
> I have to use kill -9 to stop it. 

Sounds like an infinite loop. I guess you can easily reproduce this? Try
running dsync via gdb and getting a couple of backtraces:

gdb --args dsync -v -u ..etc..
run
<wait for it to hang>
<ctrl-c>
bt
cont
<ctrl-c>
bt
cont
<ctrl-c>
bt