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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1332120

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1332120

Title:
  panic error while backup mailboxes with doveadm backup

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hi there is a fix for this bug:

  #doveadm -v backup -fu user mdbox: ....

  dsync(user): Panic: file dsync-brain-mailbox-tree-sync.c: line 111 (dsync_brain_mailbox_tree_sync_change): assertion failed: (brain->no_backup_overwrite)
  dsync(user): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f60764c1271] -> /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7f60764c12da] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f607647ca9e] -> doveadm [user recv_mailbox_tree_deletes](dsync_brain_mailbox_tree_sync_change+0x442) [0x7f60770e0142] -> doveadm [user recv_mailbox_tree_deletes](dsync_brain_recv_mailbox_tree_deletes+0x11b) [0x7f60770dfc4b] -> doveadm [user recv_mailbox_tree_deletes](dsync_brain_run+0x4e3) [0x7f60770dd0b3] -> doveadm [user recv_mailbox_tree_deletes](+0x2d964) [0x7f60770da964] -> doveadm [user recv_mailbox_tree_deletes](+0x15b5b) [0x7f60770c2b5b] -> doveadm [user recv_mailbox_tree_deletes](doveadm_mail_try_run+0x26c) [0x7f60770c38ac] -> doveadm [user recv_mailbox_tree_deletes](main+0x414) [0x7f60770c26d4] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f60760beec5] -> doveadm [user recv_mailbox_tree_deletes](+0x15922) [0x7f60770c2922]

  dovecot-core 2.2.9-1ubuntu2.1 from 14.04 LTS

  the fix:
  https://www.mail-archive.com/dovecot@xxxxxxxxxxx/msg56465.html
  http://hg.dovecot.org/dovecot-2.2/rev/fbc8fe46dfce

  dovecot-core:
    Installiert:           1:2.2.9-1ubuntu2.1
    Installationskandidat: 1:2.2.9-1ubuntu2.1
    Versionstabelle:
   *** 1:2.2.9-1ubuntu2.1 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       1:2.2.9-1ubuntu2 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages


  this is a show stopper bug because it is our main mail server

  Thanks
  Lars

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