[Bug 1332120] Re: panic error while backup mailboxes with doveadm backup

[Robie Basak]

Further to the patch you proposed there was a subsequent commit "doveadm
backup: Fix to handling mailbox deletions."
(http://hg.dovecot.org/dovecot-2.2/rev/57a490780b1e) which wipes out the
lines changed. And then a further commit "doveadm backup: Another
attempt at fixing assert-crashes when deleting mailboxes."
(http://hg.dovecot.org/dovecot-2.2/rev/20462a116704) after that.

So it isn't clear to me that the patch you've proposed fixes the issue.
There are a bunch of related fixes after those two commits that seem
related too (http://hg.dovecot.org/dovecot-2.2/log/tip/src/doveadm/dsync
/dsync-mailbox-tree-sync.c)

So I don't think this is trivial to cherry-pick into 14.04 at all. To
drive this forward I think we need a comprehensively analysed fix for
the issue that we can be confident with. I think we need Timo's input
here.

I'm going to remove this from my list of bugs that can be tackled
immediately. If someone affected can help us arrive at a patch that
comprehensively fixes this problem, then please do. I'll stay subscribed
to this bug.

Version 1:2.2.18-2ubuntu2 that is in Wily is subsequent to the patch you
proposed, so I'm going to mark this issue fixed in Wily for now, but
leaving the task for Trusty open. If this is incorrect, please explain
how you have verified this and change the bug status back to New.

** Tags removed: bitesize server-next

** Changed in: dovecot (Ubuntu)
       Status: Triaged => Fix Released

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Title:
  panic error while backup mailboxes with doveadm backup

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