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<p>Hello Aki,</p>
<p>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).</p>
<p>I've attached the output from gdb's bt full.</p>
<p>- Marcel</p>
<div class="moz-cite-prefix">Am 03.02.2019 um 14:45 schrieb Aki
Tuomi:<br>
</div>
<blockquote type="cite"
cite="mid:2031686057.4005.1549201531532@appsuite-dev-gw1.open-xchange.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="UTF-8">
<div> You need to install debug symbols. Not sure how this is done
in arch linux though. </div>
<div> <br>
</div>
<div> Aki </div>
<blockquote type="cite">
<div> On 03 February 2019 at 15:02 Marcel Menzel < <a
href="mailto:mail@mcl.gg" moz-do-not-send="true">mail@mcl.gg</a>>
wrote: </div>
<div> <br>
</div>
<div> <br>
</div>
<div> Hello John, </div>
<div> <br>
</div>
<div> I tried (until now) to get a valuable backtrace, but it
seems that GDB </div>
<div> can't resolve all symbols. </div>
<div> This is what systemd-coredump is giving me: </div>
<div> <br>
</div>
<div> Stack trace of thread 22359: </div>
<div> #0 0x0000638167eaf062 event_unref (libdovecot.so.0) </div>
<div> #1 0x000004a58a212151 n/a (dict) </div>
<div> #2 0x000004a58a211333 n/a (dict) </div>
<div> #3 0x000004a58a20514d n/a (dict) </div>
<div> #4 0x0000638167e556f2 dict_transaction_begin
(libdovecot.so.0) </div>
<div> #5 0x000004a58a203b06 n/a (dict) </div>
<div> #6 0x000004a58a2045ff dict_command_input (dict) </div>
<div> #7 0x000004a58a202a31 n/a (dict) </div>
<div> #8 0x000004a58a202b35 n/a (dict) </div>
<div> #9 0x0000638167eaacfd io_loop_call_io (libdovecot.so.0) </div>
<div> #10 0x0000638167eac635 io_loop_handler_run_internal
(libdovecot.so.0) </div>
<div> #11 0x0000638167eaadc7 io_loop_handler_run
(libdovecot.so.0) </div>
<div> #12 0x0000638167eaaf68 io_loop_run (libdovecot.so.0) </div>
<div> #13 0x0000638167e1b36a master_service_run
(libdovecot.so.0) </div>
<div> #14 0x000004a58a202300 main (dict) </div>
<div> #15 0x0000638167a17223 __libc_start_main (libc.so.6) </div>
<div> #16 0x000004a58a2023fe _start (dict) </div>
<div> <br>
</div>
<div> GDB's "bt full" won't give anything more here, I might
compile Dovecot </div>
<div> with debug symbols enabled as soon as I have a little more
time: </div>
<div> <br>
</div>
<div> (gdb) bt full </div>
<div> #0 0x0000638167eaf062 in event_unref () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #1 0x000004a58a212151 in ?? () </div>
<div> No symbol table info available. </div>
<div> #2 0x000004a58a211333 in ?? () </div>
<div> No symbol table info available. </div>
<div> #3 0x000004a58a20514d in ?? () </div>
<div> No symbol table info available. </div>
<div> #4 0x0000638167e556f2 in dict_transaction_begin () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #5 0x000004a58a203b06 in ?? () </div>
<div> No symbol table info available. </div>
<div> #6 0x000004a58a2045ff in dict_command_input () </div>
<div> No symbol table info available. </div>
<div> #7 0x000004a58a202a31 in ?? () </div>
<div> No symbol table info available. </div>
<div> #8 0x000004a58a202b35 in ?? () </div>
<div> No symbol table info available. </div>
<div> #9 0x0000638167eaacfd in io_loop_call_io () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #10 0x0000638167eac635 in io_loop_handler_run_internal ()
from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #11 0x0000638167eaadc7 in io_loop_handler_run () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #12 0x0000638167eaaf68 in io_loop_run () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #13 0x0000638167e1b36a in master_service_run () from </div>
<div> /usr/lib/dovecot/libdovecot.so.0 </div>
<div> No symbol table info available. </div>
<div> #14 0x000004a58a202300 in main () </div>
<div> No symbol table info available. </div>
<div> <br>
</div>
<div> - Marcel </div>
<div> <br>
</div>
<div> Am 03.02.2019 um 09:08 schrieb John Fawcett: </div>
<blockquote type="cite">
<div> On 01/02/2019 20:40, Marcel Menzel wrote: </div>
<blockquote type="cite">
<div> Hello, </div>
</blockquote>
</blockquote>
<div> >> </div>
<div> >> After I configured a SQLite backed dict quota
backend, the dict process </div>
<div> >> crashes every time a quota operation is
happening. </div>
<div> >> </div>
<div> >> SQLite: 3.26.0 </div>
<div> >> </div>
<div> >> Dovecot: 2.3.4 (0ecbaf23d) </div>
<div> >> </div>
<div> >> Linux: 4.20.4.a-1-hardened #1 SMP PREEMPT Fri Jan
25 01:24:51 CET 2019 </div>
<div> >> x86_64 GNU/Linux (Arch Linux) </div>
<div> >> </div>
<div> >> Filesystem: BTRFS </div>
<div> >> </div>
<div> >> </div>
<div> >> I can't get any debug output from Dovecot, even
after setting log_debug </div>
<div> >> = cat:* event:* source:* field:*=* </div>
<div> >> </div>
<div> >> dovecot[6457]: dict(6687): Debug: sqlite:
Finished query 'BEGIN </div>
<div> >> TRANSACTION' in 0 msecs </div>
<div> >> dovecot[6457]: dict(6687): Fatal: master:
service(dict): child 6687 </div>
<div> >> killed with signal 11 (core dumped) </div>
<div> >> </div>
<div> >> </div>
<div> >> I've attached the output of dovecot -n and the
coredump file from </div>
<div> >> systemd-coredump. </div>
<div> >> </div>
<div> >> </div>
<div> >> Kind regards, </div>
<div> >> </div>
<div> >> Marcel Menzel </div>
<div> >> </div>
<blockquote type="cite">
<div> Any chance of posting a backtrace? </div>
</blockquote>
<blockquote type="cite">
<div> John </div>
</blockquote>
</blockquote>
<div> <br>
</div>
<div class="io-ox-signature"> --- <br>
Aki Tuomi </div>
</blockquote>
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