[systemd-devel] syscvall-filters killing CGI after update to Fedora 33

[Dan Nicholson]

On Mon, Apr 19, 2021 at 10:24 AM Reindl Harald <h.reindl at thelounge.net> wrote:
>
> after a long time using this SystemCallFilter perl-cgi with Fedora 33
> get killed - anyone an idea what changed that's obviously covered by the
> second line
>
> SystemCallFilter=@system-service @network-io @privileged
> SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount
> @obsolete @raw-io @reboot @resources @swap
>
> either the blacklist of the new systemd version convers more than before
> or something changed in the perl stack
>
> -----------------
>
> Process 7723 (mailgraph.cgi) of user 48 dumped core.#012#012Stack trace
> of thread 7723:#012#0  0x00007f14be8e955d syscall (libc.so.6 +
> 0xfc55d)#012#1  0x00007f14be2959d2 g_thread_pool_new (libglib-2.0.so.0 +
> 0x839d2)#012#2  0x00007f14bde5ae5c g_task_get_type_once (libgio-2.0.so.0
> + 0xabe5c)#012#3  0x00007f14bde5af85 g_task_get_type (libgio-2.0.so.0 +
> 0xabf85)#012#4  0x00007f14bde5b09d g_task_new (libgio-2.0.so.0 +
> 0xac09d)#012#5  0x00007f14bdfd2c4e pango_fc_font_map_init
> (libpangoft2-1.0.so.0 + 0xac4e)#012#6  0x00007f14be37db97

I think the following change in pango is now making it spawn a thread
where it didn't before.

https://gitlab.gnome.org/GNOME/pango/-/commit/e4e7a76a173620394a4bff9738d9b156c40e8c45

--
Dan