huschi.net

COREDUMP.CONF(5)                 coredump.conf                COREDUMP.CONF(5)
NAME
       coredump.conf, coredump.conf.d - Core dump storage configuration files
SYNOPSIS
       /etc/systemd/coredump.conf
       /etc/systemd/coredump.conf.d/*.conf
       /run/systemd/coredump.conf.d/*.conf
       /usr/lib/systemd/coredump.conf.d/*.conf
DESCRIPTION
       These files configure the behavior of systemd-coredump(8), a handler
       for core dumps invoked by the kernel. Whether systemd-coredump is used
       is determined by the kernel's kernel.core_pattern sysctl(8) setting.
       See systemd-coredump(8) and core(5) pages for the details.
CONFIGURATION DIRECTORIES AND PRECEDENCE
       The default configuration is defined during compilation, so a
       configuration file is only needed when it is necessary to deviate from
       those defaults. By default, the configuration file in /etc/systemd/
       contains commented out entries showing the defaults as a guide to the
       administrator. This file can be edited to create local overrides.
       When packages need to customize the configuration, they can install
       configuration snippets in /usr/lib/systemd/*.conf.d/. Files in /etc/
       are reserved for the local administrator, who may use this logic to
       override the configuration files installed by vendor packages. The main
       configuration file is read before any of the configuration directories,
       and has the lowest precedence; entries in a file in any configuration
       directory override entries in the single configuration file. Files in
       the *.conf.d/ configuration subdirectories are sorted by their filename
       in lexicographic order, regardless of which of the subdirectories they
       reside in. When multiple files specify the same option, for options
       which accept just a single value, the entry in the file with the
       lexicographically latest name takes precedence. For options which
       accept a list of values, entries are collected as they occur in files
       sorted lexicographically. It is recommended to prefix all filenames in
       those subdirectories with a two-digit number and a dash, to simplify
       the ordering of the files.
       To disable a configuration file supplied by the vendor, the recommended
       way is to place a symlink to /dev/null in the configuration directory
       in /etc/, with the same filename as the vendor configuration file.
OPTIONS
       All options are configured in the "[Coredump]" section:
       Storage=
           Controls where to store cores. One of "none", "external", and
           "journal". When "none", the core dumps may be logged (including the
           backtrace if possible), but not stored permanently. When "external"
           (the default), cores will be stored in /var/lib/systemd/coredump/.
           When "journal", cores will be stored in the journal and rotated
           following normal journal rotation patterns.
           When cores are stored in the journal, they might be compressed
           following journal compression settings, see journald.conf(5). When
           cores are stored externally, they will be compressed by default,
           see below.
       Compress=
           Controls compression for external storage. Takes a boolean
           argument, which defaults to "yes".
       ProcessSizeMax=
           The maximum size in bytes of a core which will be processed. Core
           dumps exceeding this size may be stored, but the backtrace will not
           be generated.
           Setting Storage=none and ProcessSizeMax=0 disables all coredump
           handling except for a log entry.
       ExternalSizeMax=, JournalSizeMax=
           The maximum (uncompressed) size in bytes of a core to be saved.
       MaxUse=, KeepFree=
           Enforce limits on the disk space taken up by externally stored core
           dumps.  MaxUse= makes sure that old core dumps are removed as soon
           as the total disk space taken up by core dumps grows beyond this
           limit (defaults to 10% of the total disk size).  KeepFree= controls
           how much disk space to keep free at least (defaults to 15% of the
           total disk size). Note that the disk space used by core dumps might
           temporarily exceed these limits while core dumps are processed.
           Note that old core dumps are also removed based on time via
           systemd-tmpfiles(8). Set either value to 0 to turn off size-based
           clean-up.
       The defaults for all values are listed as comments in the template
       /etc/systemd/coredump.conf file that is installed by default.
SEE ALSO
       systemd-journald.service(8), coredumpctl(1), systemd-tmpfiles(8)
systemd 239                                                   COREDUMP.CONF(5)