---------- Původní zpráva ----------
Od: Zbigniew Jędrzejewski-Szmek <zbyszek@xxxxxxxxx>
Komu: Development discussions related to Fedora <devel@xxxxxxxxxxxxxxxxxxxxxxx>
Datum: 5. 12. 2016 21:57:12
Předmět: Re: F26 System Wide Change: Enable coredumpctl by defaultOn Mon, Dec 05, 2016 at 02:36:13PM -0500, DJ Delorie wrote:
>
> Jan Kurik <jkurik@xxxxxxxxxx> writes:
> > Note that coredumpctl is intended as a developer tool,
>
> As a developer, I remove abrt and anything else that redirects cores
> away from my development area. It's really hard to debug a core dump if
> you can't find the core file.
You still can restore such behaviour pretty easily. Just set the
kernel.core_pattern sysctl.
Please don't set kernel.core_pattern to "core" or any path unless you set the default RLIMIT_CORE to 0.
Otherwise you will get core dump files littered all around your file system.
The default value of RLIMIT_CORE, that was 0 for decades, has been changed to 'unlimited' in systemd-229.
systemd-coredump+coredumpctl give you pretty easy access to core
files, they are just dumped into /var/lib/systemd/coredump/. The
advantage is that a) things are logged and can be easily looked up and
queried, b) you get a lot of metadata like open files, cgroups,
/proc/mountinfo, umask, capability masks, etc., c) a stacktrace is
automatically generated and logged locally, d) old coredumps are
automatically removed, e) you cannot fill your disk with coredumps.
You are describing the ABRT coredumping solution, aren't you? :)
No, seriously, I have to admit that coredumpctl is much more popular
and provides great experience for developers.
We did a big mistake when we were trying to preserve the old school coredumping in CWD.
Regards,
Jakub
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