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