dovecot - Apr 2017 - Problem with LMTP

Hello,

	I'm having a problem with LMTP in a proxy server since I upgraded from 
2.1.16 to 2.2.28.

	In my logs I have:

Apr 26 12:54:17 musio12 dovecot: lmtp(2082): Fatal: master: 
service(lmtp): child 2082 killed with signal 11 (core dumped).

	As far as I could check the message is delivered in a later connection.

	I have enabled core dumped files, but how could I debug it?

-- 
Angel L. Mateo Mart?nez
Secci?n de Telem?tica
?rea de Tecnolog?as de la Informaci?n
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868889150
Fax: 868888337

> On April 26, 2017 at 2:03 PM "Angel L. Mateo" <amateo at
um.es> wrote:
> 
> 
> Hello,
> 
> 	I'm having a problem with LMTP in a proxy server since I upgraded from
> 2.1.16 to 2.2.28.
> 
> 	In my logs I have:
> 
> Apr 26 12:54:17 musio12 dovecot: lmtp(2082): Fatal: master: 
> service(lmtp): child 2082 killed with signal 11 (core dumped).
> 
> 	As far as I could check the message is delivered in a later connection.
> 
> 	I have enabled core dumped files, but how could I debug it?
> 
> -- 
> Angel L. Mateo Mart?nez
> Secci?n de Telem?tica
> ?rea de Tecnolog?as de la Informaci?n
> y las Comunicaciones Aplicadas (ATICA)
> http://www.um.es/atica
> Tfo: 868889150
> Fax: 868888337
Can you post

gdb /usr/libexec/dovecot/lmtp /path/to/core
bt full

Thanks!

Aki

>
> Can you post
>
> gdb /usr/libexec/dovecot/lmtp /path/to/core
> bt full
>
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"word"...
Reading symbols from /usr/lib/dovecot/lmtp...(no debugging symbols 
found)...done.
[New LWP 1910]
Core was generated by `dovecot/lmtp'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fb9c915aa71 in i_stream_seek ()
    from /usr/lib/dovecot/libdovecot.so.0
(gdb) bt full
#0  0x00007fb9c915aa71 in i_stream_seek ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#1  0x00007fb9c915dd6f in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#2  0x00007fb9c915ab83 in i_stream_read ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#3  0x00007fb9c91620ad in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#4  0x00007fb9c91622ab in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#5  0x00007fb9c915ab83 in i_stream_read ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#6  0x00007fb9c915b5cd in i_stream_read_data ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#7  0x00007fb9c9124a24 in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#8  0x00007fb9c912560e in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#9  0x00007fb9c91721d8 in ?? () from /usr/lib/dovecot/libdovecot.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#10 0x00007fb9c91649c2 in io_loop_call_io ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#11 0x00007fb9c9166039 in io_loop_handler_run_internal ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#12 0x00007fb9c9164a5c in io_loop_handler_run ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#13 0x00007fb9c9164c08 in io_loop_run () from 
/usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#14 0x00007fb9c90ec983 in master_service_run ()
    from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#15 0x000055f6535b4d14 in main ()
No symbol table info available.
(gdb) q


-- 
Angel L. Mateo Mart?nez
Secci?n de Telem?tica
?rea de Tecnolog?as de la Informaci?n
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868889150
Fax: 868888337

I have updated (temporally) from 2.2.28 to 2.2.30-1. With this last 
version I didn't have core related with lmtp. But now I having errors 
with auth. Would you like a gdb with the new error?

El 26/04/17 a las 14:27, Aki Tuomi escribi?:
>
>> On April 26, 2017 at 2:03 PM "Angel L. Mateo" <amateo at
um.es> wrote:
>>
>>
>> Hello,
>>
>> 	I'm having a problem with LMTP in a proxy server since I upgraded
from
>> 2.1.16 to 2.2.28.
>>
>> 	In my logs I have:
>>
>> Apr 26 12:54:17 musio12 dovecot: lmtp(2082): Fatal: master:
>> service(lmtp): child 2082 killed with signal 11 (core dumped).
>>
>> 	As far as I could check the message is delivered in a later
connection.
>>
>> 	I have enabled core dumped files, but how could I debug it?
>>
>> --
>> Angel L. Mateo Mart?nez
>> Secci?n de Telem?tica
>> ?rea de Tecnolog?as de la Informaci?n
>> y las Comunicaciones Aplicadas (ATICA)
>> http://www.um.es/atica
>> Tfo: 868889150
>> Fax: 868888337
>
> Can you post
>
> gdb /usr/libexec/dovecot/lmtp /path/to/core
> bt full
>
> Thanks!
>
> Aki
>
-- 
Angel L. Mateo Mart?nez
Secci?n de Telem?tica
?rea de Tecnolog?as de la Informaci?n
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868889150
Fax: 868888337