[Dovecot] backup maildir mailbox bugs

[Anand Kumria]

Hi,

I've retried with v2.2.7 and I get a slightly different backtrace now:

$ doveadm -v backup -R -u user at example.com maildir:/home/rsync/
example.com/user/Maildir/
[...]
dsync(user at example.com): Panic: file dsync-brain-mailbox.c: line 668
(dsync_brain_slave_recv_mailbox): assertion failed:
(memcmp(dsync_box->mailbox_guid, local_dsync_box.mailbox_guid,
sizeof(dsync_box->mailbox_guid)) == 0)
dsync(user at example.com): Error: Raw backtrace:
/usr/lib/dovecot/libdovecot.so.0(+0x5f030) [0x7f5716869030] ->
/usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a)
[0x7f571686910a] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0)
[0x7f5716823779] -> doveadm [user at example.com Archives/2004 send:mailbox
recv:mailbox](dsync_brain_slave_recv_mailbox+0x399) [0x42d4e9] -> doveadm [
user at example.com Archives/2004 send:mailbox
recv:mailbox](dsync_brain_run+0x369) [0x42b2d9] -> doveadm
[user at example.comArchives/2004 send:mailbox recv:mailbox]() [0x4290c3]
-> doveadm [
user at example.com Archives/2004 send:mailbox recv:mailbox]() [0x411c17] ->
doveadm [user at example.com Archives/2004 send:mailbox
recv:mailbox](doveadm_mail_try_run+0x260) [0x4128e0] -> doveadm [
user at example.com Archives/2004 send:mailbox recv:mailbox](main+0x3f0)
[0x411800] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)
[0x7f571646b76d] -> doveadm [user at example.com Archives/2004 send:mailbox
recv:mailbox]() [0x4119fd]

Let me know what else I can do to assist.

Thanks,
Anand



On 3 November 2013 11:27, Anand Kumria <wildfire at progsoc.org> wrote:

> Hi Timo,
>
> I would but exactly how to run this script usefully escapes me.
>
> Neither:
>
> $ perl maildir-anonymize.pl .
>
> $ perl maildir-anonymize.pl Maildir/
>
> work.
>
> And:
>
> $ cd Maildir; perl maildir-anonymize.pl *
>
> outputs lots of 'x', but that isn't useful. Since I assume you want the
> original contents anonymized.
>
> Also, the issue might be related to the folder structure, the original is
> using Maildir within Maildir (what Dovecot 1.x creates actually).
>
> So you might need the full structure?
>
> Regards,
> Anand
>
>
> On 26 October 2013 16:23, Timo Sirainen <tss at iki.fi> wrote:
>
>> On 20.10.2013, at 19.24, Anand Kumria <wildfire at progsoc.org> wrote:
>>
>> > Using dovecot v2.2.5.5, I get the following:
>> >
>> > $ doveadm -v backup -R -u user at example.com maildir:/home/rsync/
>> > example.com/user/Maildir/
>> >
>> > [...]
>> >
>> > dsync(user at example.com): Panic: file dsync-mailbox-export.c: line 228
>> > (export_save_change_get): assertion failed: (change->type ==
>> > DSYNC_MAIL_CHANGE_TYPE_FLAG_CHANGE)
>>
>> That’s definitely a bug, but I’m not sure how to reproduce it. Can you
>> create such a test maildir where this happens that you could send to me?
>> For example you could change all the mail contents to just use “x” letters.
>> Here’s a script that does it:
>> http://dovecot.org/tools/maildir-anonymize.pl
>>
>> Most likely this is related to your specific dovecot.index* files, and
>> deleting them would fix the problem. I’d still like to fix the real bug
>> though.
>>
>>
>>
>