Hello Aki,

unfortunately, this patch is already in my source files, as patch refuses to apply it:

  -> Applying patch fix-sqlite.patch
patching file src/lib-sql/driver-sqlite.c
Reversed (or previously applied) patch detected!  Skipping patch.
2 out of 2 hunks ignored -- saving rejects to file src/lib-sql/driver-sqlite.c.rej

I verified it by looking in the source code and indeed, this patch is already applied.

- Marcel

Can you try if applying

https://github.com/dovecot/core/commit/b291ff1fd61b47639a2db99bd858c9511945f4ab.patch

helps?

Aki

On 03 February 2019 at 16:20 Marcel Menzel < mail@mcl.gg> wrote:

Hello Aki,

Arch Linux doesn't have install-able debug symbols for Dovecot. That's

why I just compiled the package for myself with enabled debug symbols

(by editing the makepkg.conf).

I've attached the output from gdb's bt full.

- Marcel

Am 03.02.2019 um 14:45 schrieb Aki Tuomi:

You need to install debug symbols. Not sure how this is done in arch

linux though.

Aki

On 03 February 2019 at 15:02 Marcel Menzel < mail@mcl.gg

<mailto: mail@mcl.gg>> wrote:

>>

>> Hello John,

>>

>> I tried (until now) to get a valuable backtrace, but it seems that GDB

>> can't resolve all symbols.

>> This is what systemd-coredump is giving me:

>>

>> Stack trace of thread 22359:

>> #0  0x0000638167eaf062 event_unref (libdovecot.so.0)

>> #1  0x000004a58a212151 n/a (dict)

>> #2  0x000004a58a211333 n/a (dict)

>> #3  0x000004a58a20514d n/a (dict)

>> #4  0x0000638167e556f2 dict_transaction_begin (libdovecot.so.0)

>> #5  0x000004a58a203b06 n/a (dict)

>> #6  0x000004a58a2045ff dict_command_input (dict)

>> #7  0x000004a58a202a31 n/a (dict)

>> #8  0x000004a58a202b35 n/a (dict)

>> #9  0x0000638167eaacfd io_loop_call_io (libdovecot.so.0)

>> #10 0x0000638167eac635 io_loop_handler_run_internal (libdovecot.so.0)

>> #11 0x0000638167eaadc7 io_loop_handler_run (libdovecot.so.0)

>> #12 0x0000638167eaaf68 io_loop_run (libdovecot.so.0)

>> #13 0x0000638167e1b36a master_service_run (libdovecot.so.0)

>> #14 0x000004a58a202300 main (dict)

>> #15 0x0000638167a17223 __libc_start_main (libc.so.6)

>> #16 0x000004a58a2023fe _start (dict)

>>

>> GDB's "bt full" won't give anything more here, I might compile Dovecot

>> with debug symbols enabled as soon as I have a little more time:

>>

>> (gdb) bt full

>> #0  0x0000638167eaf062 in event_unref () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #1  0x000004a58a212151 in ?? ()

>> No symbol table info available.

>> #2  0x000004a58a211333 in ?? ()

>> No symbol table info available.

>> #3  0x000004a58a20514d in ?? ()

>> No symbol table info available.

>> #4  0x0000638167e556f2 in dict_transaction_begin () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #5  0x000004a58a203b06 in ?? ()

>> No symbol table info available.

>> #6  0x000004a58a2045ff in dict_command_input ()

>> No symbol table info available.

>> #7  0x000004a58a202a31 in ?? ()

>> No symbol table info available.

>> #8  0x000004a58a202b35 in ?? ()

>> No symbol table info available.

>> #9  0x0000638167eaacfd in io_loop_call_io () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #10 0x0000638167eac635 in io_loop_handler_run_internal () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #11 0x0000638167eaadc7 in io_loop_handler_run () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #12 0x0000638167eaaf68 in io_loop_run () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #13 0x0000638167e1b36a in master_service_run () from

>> /usr/lib/dovecot/libdovecot.so.0

>> No symbol table info available.

>> #14 0x000004a58a202300 in main ()

>> No symbol table info available.

>>

>> - Marcel

>>

>> Am 03.02.2019 um 09:08 schrieb John Fawcett:

>>> On 01/02/2019 20:40, Marcel Menzel wrote:

>>>> Hello,

>> >>

>> >> After I configured a SQLite backed dict quota backend, the dict

>> process

>> >> crashes every time a quota operation is happening.

>> >>

>> >> SQLite: 3.26.0

>> >>

>> >> Dovecot: 2.3.4 (0ecbaf23d)

>> >>

>> >> Linux: 4.20.4.a-1-hardened #1 SMP PREEMPT Fri Jan 25 01:24:51 CET

>> 2019

>> >> x86_64 GNU/Linux (Arch Linux)

>> >>

>> >> Filesystem: BTRFS

>> >>

>> >>

>> >> I can't get any debug output from Dovecot, even after setting

>> log_debug

>> >> = cat:* event:* source:* field:*=*

>> >>

>> >> dovecot[6457]: dict(6687): Debug: sqlite: Finished query 'BEGIN

>> >> TRANSACTION' in 0 msecs

>> >> dovecot[6457]: dict(6687): Fatal: master: service(dict): child 6687

>> >> killed with signal 11 (core dumped)

>> >>

>> >>

>> >> I've attached the output of dovecot -n and the coredump file from

>> >> systemd-coredump.

>> >>

>> >>

>> >> Kind regards,

>> >>

>> >> Marcel Menzel

>> >>

>>> Any chance of posting a backtrace?

>>> John

>

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Aki Tuomi

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Aki Tuomi