> I have this core dump from 06.05.2017, not sure if it's related, I
> think I attach it here. The segmentation fault happened once.
> 
> * thread #1: tid = 0x0000, 0x00000001021032fb
> complist.so`msearch(ptr=0x00007fd97b34d940, ins="M", back=0, rep=0,
> wrapp=0x00007fff5ded95a8) + 315 at complist.c:2312, stop reason =
> signal SIGSTOP

I don't have a detailed coredump like this but I think it's related,
when I debug the problem in gdb the segfault append exactly at line
2312.
https://sourceforge.net/p/zsh/code/ci/master/tree/Src/Zle/complist.c#l2312

But for my part I experience it a lot (I use auto-completion menu a lot) :

```
max@mde-oxalide % sudo coredumpctl list /usr/bin/zsh | head
TIME                            PID   UID   GID SIG COREFILE  EXE
Tue 2016-10-18 15:18:05 CEST   8075  1000   100  11 missing   /usr/bin/zsh
Thu 2016-10-20 18:33:17 CEST  14850  1000   100  11 missing   /usr/bin/zsh
Tue 2016-10-25 14:45:59 CEST  18653  1000   100  11 missing   /usr/bin/zsh
Mon 2016-11-28 18:26:56 CET   13915  1000   100  11 missing   /usr/bin/zsh
Tue 2016-11-29 19:28:49 CET    3067  1000   100  11 missing   /usr/bin/zsh
Wed 2016-11-30 10:25:04 CET    1303  1000   100  11 missing   /usr/bin/zsh
Wed 2016-11-30 15:10:46 CET   16278  1000   100  11 missing   /usr/bin/zsh
Wed 2016-12-07 18:03:07 CET   32027  1000   100  11 missing   /usr/bin/zsh
Fri 2016-12-09 14:29:07 CET   22713  1000   100  11 missing   /usr/bin/zsh
max@laptop % sudo coredumpctl -r list /usr/bin/zsh  | wc -l
83
```

My coredumps aren't detailed as yours :
```
max@laptop % sudo coredumpctl dump /usr/bin/zsh
           PID: 3148 (zsh)
           UID: 1000 (max)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: Sun 2017-07-02 15:23:17 CEST (1 day 22h ago)
  Command Line: /usr/bin/zsh
    Executable: /usr/bin/zsh
 Control Group: /user.slice/user-1000.slice/user@1000.service/gnome-terminal-server.service
          Unit: user@1000.service
     User Unit: gnome-terminal-server.service
         Slice: user-1000.slice
     Owner UID: 1000 (max)
       Boot ID: bf4c79d72cca4a4786e217e13ea0f31c
    Machine ID: 8466a4f6764d4d0b8fb5cb3903d9804c
      Hostname: laptop
       Storage: /var/lib/systemd/coredump/core.zsh.1000.bf4c79d72cca4a4786e217e13ea0f31c.3148.1499001797000000000000.lz4
       Message: Process 3148 (zsh) of user 1000 dumped core.

                Stack trace of thread 3148:
                #0  0x00007ffff55e3b90 domenuselect (complist.so)
                #1  0x000000000045dde9 runhookdef (zsh)
                #2  0x00007ffff5e10567 after_complete (complete.so)
                #3  0x00007ffff605fc05 docomplete (zle.so)
                #4  0x00007ffff605bfd0 completecall (zle.so)
                #5  0x00007ffff604b874 execzlefunc (zle.so)
                #6  0x00007ffff604bc66 zlecore (zle.so)
                #7  0x00007ffff604cb31 zleread (zle.so)
                #8  0x0000000000448494 zleentry (zsh)
                #9  0x00000000004499e5 ingetc.part.0 (zsh)
                #10 0x00000000004417fb ihgetc (zsh)
                #11 0x00000000004535b6 zshlex.part.1 (zsh)
                #12 0x0000000000473136 parse_event (zsh)
                #13 0x0000000000444faf loop (zsh)
                #14 0x0000000000448b0e zsh_main (zsh)
                #15 0x00007ffff70cd43a __libc_start_main (libc.so.6)
                #16 0x000000000041032a _start (zsh)
Refusing to dump core to tty (use shell redirection or specify --output).
```
-- 
Regards
Maxime de Roucy