Problem with Lua notification script since 2.3.15 update

Ralf Becker rb at egroupware.org
Mon Jun 28 13:58:21 EEST 2021 

Hi Aki,

Am 28.06.21 um 12:19 schrieb Aki Tuomi:
> As workaround, you could try dropping script_init function. It might still require downgrading to 2.3.14 to avoid other similar asserts. script_init & script_deinit functions are not mandatory.


Commenting out my (anyway empty) script_init function seems to fix the 
problem with 2.3.15, as far a quick check on my laptop goes.

Thanks :)

Ralf


>
> Aki
>
>> On 28/06/2021 13:07 Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
>>
>>   
>> Hi!
>>
>> This has been fixed in master with https://github.com/dovecot/core/commit/2b508d396cb1442f4da715b762ca544639bde456.patch
>>
>> We'll see what to do about 2.3.15.
>>
>> Aki
>>
>>> On 28/06/2021 12:47 Vytenis Adm <vytenis.adm at gmail.com> wrote:
>>>
>>>   
>>> Not a solution, but I'd like to second this issue.
>>>
>>> We have a Lua push configured as well, and are currently running
>>> dovecot-2.3.14-5 (CentOS 7.9)
>>>
>>> After bootstrapping new instances with dovecot 2.3.15 the exact same
>>> issue appeared:
>>>
>>> Jun 27 18:28:37 imaphost.tld dovecot[1331]:
>>> imap(user at example.com)<23828><zc6HisPFH2kj9m34>: Panic: file
>>> dlua-script.c: line 224 (dlua_script_init): assertion failed:
>>> (lua_gettop(script->L) == 0)
>>> Jun 27 18:28:37 imaphost.tld dovecot[1331]:
>>> imap(user at example.com)<23828><zc6HisPFH2kj9m34>: Error: Raw backtrace:
>>> /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42)
>>> [0x7fb027d2e862] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fb027d2e96e]
>>> -> /usr/lib64/dovecot/libdovecot.so.0(+0xf50fe) [0x7fb027d3c0fe] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(+0xf51a1) [0x7fb027d3c1a1] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb027c8c60c] ->
>>> /usr/lib64/dovecot/libdovecot-lua.so.0(+0x4214) [0x7fb027062214] ->
>>> /usr/lib64/dovecot/lib22_push_notification_lua_plugin.so(+0x2b7b)
>>> [0x7fb024f78b7b] ->
>>> /usr/lib64/dovecot/lib20_push_notification_plugin.so(push_notification_driver_init+0x199)
>>> [0x7fb0260ff819] ->
>>> /usr/lib64/dovecot/lib20_push_notification_plugin.so(+0x76df)
>>> [0x7fb0261016df] ->
>>> /usr/lib64/dovecot/lib20_push_notification_plugin.so(+0x7e00)
>>> [0x7fb026101e00] ->
>>> /usr/lib64/dovecot/libdovecot-storage.so.0(hook_mail_user_created+0x209)
>>> [0x7fb0280529b9] ->
>>> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_user_init+0x220)
>>> [0x7fb028059130] ->
>>> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_service_next_with_session_suffix+0x5ff)
>>> [0x7fb0280565cf] ->
>>> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_service_lookup_next+0x4f)
>>> [0x7fb028056cef] -> dovecot/imap(client_create_from_input+0x110)
>>> [0x55702bdf2120] -> dovecot/imap(+0x2d417) [0x55702bdf2417] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(+0x73d96) [0x7fb027cbad96] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(+0x74153) [0x7fb027cbb153] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(+0x74f27) [0x7fb027cbbf27] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(connection_input_default+0x158)
>>> [0x7fb027d33b48] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65)
>>> [0x7fb027d54425] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x12b)
>>> [0x7fb027d55dab] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x59)
>>> [0x7fb027d54529] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38)
>>> [0x7fb027d54768] ->
>>> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13)
>>> [0x7fb027cbe3c3] -> dovecot/imap(main+0x342) [0x55702bdd42f2] ->
>>> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fb02789b555] ->
>>> dovecot/imap(+0xf4f5) [0x55702bdd44f5]
>>>
>>> Jun 27 18:28:37 imaphost.tld dovecot[1331]:
>>> imap(user at example.com)<23828><zc6HisPFH2kj9m34>: Fatal: master:
>>> service(imap): child 23828 killed with signal 6 (core dumps disabled -
>>> https://dovecot.org/bugreport.html#coredumps)
>>>
>>>
>>> The workaround was to downgrade to dovecot-2.3.14-5, and the issues were
>>> gone.
>>>
>>>
>>>
>>>
>>> On 2021-06-28 12:31, Ralf Becker wrote:
>>>> If the Lua-notifications are enabled, Dovecot imap dies immediately at
>>>> authentication:
>>>>
>>>> Jun 28 09:17:29 imap-login: Info: Login: user=<ralf>, method=PLAIN,
>>>> rip=172.18.0.12, lip=172.18.0.16, mpid=16, TLS,
>>>> session=<dDhm9c/FYtqsEgAM>
>>>> Jun 28 09:17:29 imap(ralf)<16><dDhm9c/FYtqsEgAM>: Panic: file
>>>> dlua-script.c: line 224 (dlua_script_init): assertion failed:
>>>> (lua_gettop(script->L) == 0)
>>>> Jun 28 09:17:29 imap(ralf)<16><dDhm9c/FYtqsEgAM>: Error: Raw
>>>> backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x41)
>>>> [0x7f9f537ca5c1] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x22) [0x7f9f537ca6e2]
>>>> -> /usr/lib/dovecot/libdovecot.so.0(+0x1070bb) [0x7f9f537d70bb] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(+0x107157) [0x7f9f537d7157] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(+0x5bb2b) [0x7f9f5372bb2b] ->
>>>> /usr/lib/dovecot/libdovecot-lua.so.0(+0x5354) [0x7f9f53311354] ->
>>>> /usr/lib/dovecot/modules/lib22_push_notification_lua_plugin.so(+0x3842)
>>>> [0x7f9f532c6842] ->
>>>> /usr/lib/dovecot/modules/lib20_push_notification_plugin.so(push_notification_driver_init+0x19c)
>>>> [0x7f9f532d062c] ->
>>>> /usr/lib/dovecot/modules/lib20_push_notification_plugin.so(+0x846f)
>>>> [0x7f9f532d246f] ->
>>>> /usr/lib/dovecot/modules/lib20_push_notification_plugin.so(+0x8b6a)
>>>> [0x7f9f532d2b6a] ->
>>>> /usr/lib/dovecot/libdovecot-storage.so.0(hook_mail_user_created+0x211)
>>>> [0x7f9f539084e1] ->
>>>> /usr/lib/dovecot/libdovecot-storage.so.0(mail_user_init+0x20b)
>>>> [0x7f9f5390e80b] ->
>>>> /usr/lib/dovecot/libdovecot-storage.so.0(mail_storage_service_next_with_session_suffix+0x587)
>>>> [0x7f9f5390bd57] ->
>>>> /usr/lib/dovecot/libdovecot-storage.so.0(mail_storage_service_lookup_next+0x53)
>>>> [0x7f9f5390c4c3] -> dovecot/imap(client_create_from_input+0x180)
>>>> [0x5626eb18fe40] -> dovecot/imap(+0x3112a) [0x5626eb19012a] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(+0x8d60e) [0x7f9f5375d60e] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(+0x8d97b) [0x7f9f5375d97b] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(+0x8e8be) [0x7f9f5375e8be] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(connection_input_default+0x15e)
>>>> [0x7f9f537cef5e] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6d)
>>>> [0x7f9f537ed3ed] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x145)
>>>> [0x7f9f537eea15] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x54)
>>>> [0x7f9f537ed494] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40)
>>>> [0x7f9f537ed600] ->
>>>> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x17)
>>>> [0x7f9f537609e7] -> dovecot/imap(main+0x469) [0x5626eb172c19] ->
>>>> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)
>>>> [0x7f9f535020b3] -> dovecot/imap(_start+0x2e) [0x5626eb172cae]
>>>> Jun 28 09:17:29 imap(ralf)<16><dDhm9c/FYtqsEgAM>: Fatal: master:
>>>> service(imap): child 16 killed with signal 6 (core dumps disabled -
>>>> https://dovecot.org/bugreport.html#coredumps)
>>>>
>>>> I use the following Dovecot configuration:
>>>>
>>>> # Store METADATA information in a file dovecot-metadata in user's home
>>>> mail_attribute_dict = file:%h/dovecot-metadata
>>>>
>>>> # enable metadata
>>>> protocol imap {
>>>>    imap_metadata = yes
>>>> }
>>>>
>>>> # add necessary plugins for Lua push notifications
>>>> mail_plugins = $mail_plugins mail_lua notify push_notification
>>>> push_notification_lua
>>>>
>>>> # Lua notification script and URL of EGroupware push server
>>>> plugin {
>>>>    push_notification_driver = lua:file=/etc/dovecot/dovecot-push.lua
>>>>    push_lua_url =
>>>> https://Bearer:secret@boulder.egroupware.org/egroupware/push
>>>> }
>>>>
>>>> The Lua script is available under
>>>> https://github.com/EGroupware/swoolepush/blob/master/doc/dovecot-push.lua
>>>>
>>>> The whole Dovecot configurations is available under
>>>>
>>>> https://github.com/EGroupware/build.opensuse.org/tree/master/server:eGroupWare/egroupware-mail/egroupware-mail/dovecot
>>>>
>>>>
>>>> Dovecot runs in a Ubuntu 20.04 based container and seems to use the
>>>> correct liblua5.3:
>>>>
>>>> root at 750978e5c0ee:/# dpkg -l|grep -i lua
>>>> ii  dovecot-lua                2:2.3.15-1+ubuntu20.04 amd64 secure
>>>> POP3/IMAP server - LUA support
>>>> ii  liblua5.3-0:amd64          5.3.3-1.1ubuntu2 amd64 Shared library
>>>> for the Lua interpreter version 5.3
>>>> ii  lua-json                   1.3.4-2 all          JSON
>>>> decoder/encoder for Lua
>>>> ii  lua-lpeg:amd64             1.0.2-1 amd64        LPeg library for
>>>> the Lua language
>>>> ii  lua-socket:amd64           3.0~rc1+git+ac3201d-4 amd64 TCP/UDP
>>>> socket library for the Lua language
>>>>
>>>> Everything was running fine with 2.3.13, have not tried with 2.3.14 yet.
>>>>
>>>> Any ideas?
>>>>
>>>> Ralf
>>>>

-- 
Ralf Becker
EGroupware GmbH [www.egroupware.org]
Handelsregister HRB Kaiserslautern 3587
Geschäftsführer Birgit und Ralf Becker
Leibnizstr. 17, 67663 Kaiserslautern, Germany
Telefon +49 631 31657-0

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