Comment # 10 on bug 1182864 from Marcus R���ckert

Could this be the same reason why i see:

```
                Stack trace of thread 31844:
                #0  0x00007f5d720c6f11 n/a (libpcre2-8.so.0 + 0x28f11)
                #1  0x00007f5d720c711e n/a (libpcre2-8.so.0 + 0x2911e)
                #2  0x00007f5d720f79fb n/a (libpcre2-8.so.0 + 0x599fb)
                #3  0x00007f5d720fad7d pcre2_jit_compile_8 (libpcre2-8.so.0 +
0x5cd7d)
                #4  0x00007f5d72fbca2d rspamd_regexp_new (librspamd-server.so +
0xb5a2d)
                #5  0x00007f5d72fbd436 rspamd_regexp_cache_create
(librspamd-server.so + 0xb6436)
                #6  0x00007f5d7307c360 lua_regexp_create_cached
(librspamd-server.so + 0x175360)
                #7  0x00007f5d72e877aa n/a (libluajit-5.1.so.2 + 0xb7aa)
                #8  0x00007f5d72ee68c2 n/a (libluajit-5.1.so.2 + 0x6a8c2)
                #9  0x00007f5d72e877aa n/a (libluajit-5.1.so.2 + 0xb7aa)
                #10 0x00007f5d72ee68c2 n/a (libluajit-5.1.so.2 + 0x6a8c2)
                #11 0x00007f5d72e877aa n/a (libluajit-5.1.so.2 + 0xb7aa)
                #12 0x00007f5d72e98599 lua_pcall (libluajit-5.1.so.2 + 0x1c599)
                #13 0x00007f5d73064f12 rspamd_lua_require_function
(librspamd-server.so + 0x15df12)
                #14 0x00007f5d7305483b rspamd_message_process
(librspamd-server.so + 0x14d83b)
                #15 0x00007f5d7301780d rspamd_task_process (librspamd-server.so
+ 0x11080d)
                #16 0x00007f5d730176e7 rspamd_task_process (librspamd-server.so
+ 0x1106e7)
                #17 0x00007f5d730176e7 rspamd_task_process (librspamd-server.so
+ 0x1106e7)
                #18 0x00007f5d730176e7 rspamd_task_process (librspamd-server.so
+ 0x1106e7)
                #19 0x000055c951b75924 rspamd_worker_body_handler (rspamd +
0x19924)
                #20 0x00007f5d7302a603 rspamd_http_on_message_complete
(librspamd-server.so + 0x123603)
                #21 0x00007f5d730bd8fe http_parser_execute (librspamd-server.so
+ 0x1b68fe)
                #22 0x00007f5d73027e54 rspamd_http_event_handler
(librspamd-server.so + 0x120e54)
                #23 0x00007f5d72b95036 ev_invoke_pending (librspamd-ev.so +
0x5036)
                #24 0x00007f5d72b9889f ev_run (librspamd-ev.so + 0x889f)
                #25 0x000055c951b76580 start_worker (rspamd + 0x1a580)
                #26 0x00007f5d73022ab9 rspamd_fork_worker (librspamd-server.so
+ 0x11bab9)
                #27 0x000055c951b73f20 rspamd_fork_delayed_cb (rspamd +
0x17f20)
                #28 0x00007f5d72b95036 ev_invoke_pending (librspamd-ev.so +
0x5036)
                #29 0x00007f5d72b9889f ev_run (librspamd-ev.so + 0x889f)
                #30 0x000055c951b695d2 main (rspamd + 0xd5d2)
                #31 0x00007f5d729e6b35 __libc_start_main (libc.so.6 + 0x27b35)
                #32 0x000055c951b69b0e _start (rspamd + 0xdb0e)
```

and

```
                Stack trace of thread 1110:
                #0  0x00007f5d720c6e7b n/a (libpcre2-8.so.0 + 0x28e7b)
                #1  0x00007f5d720fb013 n/a (libpcre2-8.so.0 + 0x5d013)
                #2  0x00007f5d720aca1a pcre2_code_free_8 (libpcre2-8.so.0 +
0xea1a)
                #3  0x00007f5d72fb42e8 n/a
(/usr/lib64/rspamd/librspamd-server.so (deleted) + 0xad2e8)
```