SYSTEMD-COREDUMP(8) systemd-coredump SYSTEMD-COREDUMP(8)
NAME
systemd-coredump - Log and store core dumps
SYNOPSIS
/usr/lib/systemd/systemd-coredump
DESCRIPTION
systemd-coredump can be used as a helper binary by the kernel when a user space program receives a fatal
signal and dumps core. For it to be used in this capacity, it must be specified by the
kernel.core_pattern sysctl(8) setting. Systemd installs /usr/lib/sysctl.d/50-coredump.conf which configures
kernel.core_pattern to invoke systemd-coredump. This file may be masked or overriden to use a different
setting following normal sysctl.d(5) rules.
The behaviour of a specific program upon reception of a signal is governed by a few factors which are
described in detail in core(5). In particular, the coredump will only be processed when the related resource
limits are high enough. For programs started by systemd those may be set using LimitCore= (see
systemd.exec(5)).
systemd-coredump will log the coredump including a backtrace if possible, and store the core (contents of
process' memory contents) in an external file on disk in /var/lib/systemd/coredump, or directly in the
journal. This behaviour may be modified using coredump.conf(5).
Apart from the journalctl(1) log viewer, coredumpctl(1) may be used to list and extract coredumps.
SEE ALSO
coredump.conf(5), coredumpctl(1), systemd-journald.service(8), core(5), sysctl.d(5), systemd-
sysctl.service(8).
systemd 219 SYSTEMD-COREDUMP(8)
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