Dovecot 2.1.9 shared folder deletion causes fault

[Edwardo Garcia]

You are reporting a problem with a antique?
Please try current stable version and if problem persist let us know
with include the dovecot -n output.

Current version is 2.2.18, pretty pointless trying to look for a bug
resolution in such a old version, also, 2.1.9 maybe latest in your
distribution but that is not dovecot problem, dovecot does not produce
binaries for any distribution.and you are likely many many bugs in
your 2.1.9 version that long been fixed.

On 6/19/15, JT <admin at jtlabs.net> wrote:
> Hey all,
>
> I'm getting a fault in dovecot (see below) using shared folders. I have
> a mailbox that receives new mail (Account X/INBOX). Another account
> (Account A) has access to the other account (Account X/INBOX) with ACL
> below.
>
> The ACL directory (.DEFAULT) contains:
> user=AccountA lrwst
>
> I removed a test email from Account A/INBOX, which is supposed to remove
> the email from Account X/INBOX. A fault occurs whenever my client
> (Thunderbird) attempts to connect and complete the deletion. Other
> actions complete successfully. It only appears to happen when using
> Thunderbird. Mac Mail does not cause the fault.
>
> I'm not getting a core dump so all I have is what the log outputs. I can
> reproduce this regularly so let me know if you need any additional
> information.
>
> Thanks,
>
> JT
>
> ===
>
> Version: 2.1.9 (Ubuntu Trustydeb package)
> OS: Ubuntu trusty 14.04
>
> 2015-06-18T19:17:50.518505+00:00 mail-103 dovecot: imap(XXX): Error: Raw
> backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7eff3f6d1271]
> -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7eff3f6d134e] ->
> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7eff3f68ca9e] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa7cbc) [0x7eff3f9e2cbc] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x6c)
> [0x7eff3f9ac8ec] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x15)
> [0x7eff3f9ac985] -> dovecot/imap(+0xded5) [0x7eff3fe78ed5] ->
> dovecot/imap(command_exec+0x3c) [0x7eff3fe836dc] ->
> dovecot/imap(+0x176cf) [0x7eff3fe826cf] -> dovecot/imap(+0x17785)
> [0x7eff3fe82785] -> dovecot/imap(client_handle_input+0x125)
> [0x7eff3fe82aa5] -> dovecot/imap(client_input+0x75) [0x7eff3fe82e35] ->
> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7eff3f6e1247]
> -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7)
> [0x7eff3f6e1fd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38)
> [0x7eff3f6e0de8] ->
> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
> [0x7eff3f691c93] -> dovecot/imap(main+0x2c4) [0x7eff3fe772f4] ->
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7eff3f2cfec5]
> -> dovecot/imap(+0xc460) [0x7eff3fe77460]
> 2015-06-18T19:17:50.736901+00:00 mail-103 dovecot: imap(XXX): Fatal:
> master: service(imap): child 4461 killed with signal 6 (core dumped)
> 2015-06-18T19:17:51.662157+00:00 mail-103 dovecot: imap(XXX): Panic:
> file mail-index.c: line 380 (mail_index_keywords_unref): assertion
> failed: (keywords->refcount > 0)
> 2015-06-18T19:17:51.662969+00:00 mail-103 dovecot: imap(XXX): Error: Raw
> backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x5e271) [0x7f3fa05bb271]
> -> /usr/lib/dovecot/libdovecot.so.0(+0x5e34e) [0x7f3fa05bb34e] ->
> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f3fa0576a9e] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(+0xa7cbc) [0x7f3fa08cccbc] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_copy+0x6c)
> [0x7f3fa08968ec] ->
> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_move+0x15)
> [0x7f3fa0896985] -> dovecot/imap(+0xded5) [0x7f3fa0d62ed5] ->
> dovecot/imap(command_exec+0x3c) [0x7f3fa0d6d6dc] ->
> dovecot/imap(+0x176cf) [0x7f3fa0d6c6cf] -> dovecot/imap(+0x17785)
> [0x7f3fa0d6c785] -> dovecot/imap(client_handle_input+0x125)
> [0x7f3fa0d6caa5] -> dovecot/imap(client_input+0x75) [0x7f3fa0d6ce35] ->
> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x27) [0x7f3fa05cb247]
> -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xd7)
> [0x7f3fa05cbfd7] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38)
> [0x7f3fa05cade8] ->
> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13)
> [0x7f3fa057bc93] -> dovecot/imap(main+0x2c4) [0x7f3fa0d612f4] ->
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f3fa01b9ec5]
> -> dovecot/imap(+0xc460) [0x7f3fa0d61460]
> 2015-06-18T19:17:51.857451+00:00 mail-103 dovecot: imap(XXX): Fatal:
> master: service(imap): child 4464 killed with signal 6 (core dumped)
>
> protocol imap {
>   imap_client_workarounds = tb-extra-mailbox-sep
>   imap_idle_notify_interval = 1 mins
>   mail_max_userip_connections = 10
>   mail_plugins = acl quota acl imap_acl quota imap_quota
> }
>
> plugin {
>   acl = vfile:/etc/dovecot/acl
>   acl_defaults_from_inbox = yes
>   acl_shared_dict = proxy::acl
> ...
> }
>
> namespace {
>   hidden = no
>   inbox = yes
>   list = yes
>   location =
>   prefix =
>   separator = /
>   subscriptions = yes
>   type = private
> }
> namespace {
>   hidden = no
>   list = children
>   location =
> maildir:/var/mail/public/Maildir:INDEX=/var/mail/%d/%n/Maildir/public
>   prefix = public/
>   separator = /
>   subscriptions = yes
>   type = public
> }
> namespace {
>   list = yes
>   location =
> maildir:%%h/Maildir:CONTROL=~/Maildir/control/%%u:INDEX=~/Maildir/shared/%%u.indx:INDEXPVT=~/Maildir/shared/%%u.pvt
>   prefix = shared/%%u/
>   separator = /
>   subscriptions = no
>   type = shared
> }
>