On Sun, 2007-05-06 at 13:49 +0100, Ben Carter wrote: > The problem /seems/ to often start as a result of trying to move > messages between folders. I'm not certain if that's a root cause, > though, or simply a consequence of "opening" an affected folder to > perform the move. I have a spam folder with a large number (>10000) of > messages in it, and trying to file stuff in there is a relatively > surefire way to generate the problem.
Try if dotlock_use_excl=yes helps. That setting was made to fix hard linking problems with HFS. Otherwise http://wiki.dovecot.org/Debugging/ProcessTracing might show up something useful when looking at what imap process is doing at the time it seems to be hanging.
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