Confusion over debugging with coredumpctl

graysky · 2014-10-02 14:22:06

I am trying to debug FS#42099 and can reproduce the crash described therein. What I don't understand is what I'm doing wrong using coredumpctl:

% dmesg -t| tail -n 1
vlc[3195]: segfault at ffffffc0 ip 00007f9182553d04 sp 00007f915c552748 error 4 in libc-2.20.so[7f91824d2000+199000]

And...

% ls -l /var/lib/systemd/coredump/
total 10264
-rw-r-----+ 1 root root 10507720 Oct  2 10:15 core.vlc.1000.b72bf2367b734d328e738aa388f2aeab.3136.1412259334000000.xz

But...

% coredumpctl gdb vlc
No match found.

karol · 2014-10-02 22:48:48

What's the output of 'coredumpctl list'?

graysky · 2014-10-03 18:35:36

karol wrote:

What's the output of 'coredumpctl list'?

Interestingly, none.

% coredumpctl list
No coredumps found.

karol · 2014-10-03 22:24:22

What is your coredump config?

graysky · 2014-10-03 22:29:04

karol wrote:

What is your coredump config?

It is stock AFAIK:

% cat /etc/systemd/coredump.conf
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# See coredump.conf(5) for details

[Coredump]
#Storage=external
#Compress=yes
#ProcessSizeMax=2G
#ExternalSizeMax=2G
#JournalSizeMax=767M
#MaxUse=
#KeepFree=

Arch Linux

#1 2014-10-02 14:22:06

Confusion over debugging with coredumpctl

#2 2014-10-02 22:48:48

Re: Confusion over debugging with coredumpctl

#3 2014-10-03 18:35:36

Re: Confusion over debugging with coredumpctl

#4 2014-10-03 22:24:22

Re: Confusion over debugging with coredumpctl

#5 2014-10-03 22:29:04

Re: Confusion over debugging with coredumpctl

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